Physiological Integrity

1960 soru

Soru 1841Soru →

A 7272-year-old client with a history of heart failure is being monitored 30 minutes30\text{ minutes} after a bedside therapeutic thoracentesis, during which 1,600 mL1,600\text{ mL} of pleural fluid was rapidly removed. Which assessment findings indicate a developing physiological complication that requires immediate rapid response? Select all that apply.

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Cevap: Development of a persistent, hacking cough that produces frothy sputum; Heart rate elevation from 8282 to 118 beats/min118\text{ beats/min} accompanied by a narrowing pulse pressure; Asymmetrical chest wall movement with absent breath sounds on the operative side

Cevap

The findings requiring immediate intervention are the development of a persistent, hacking cough producing frothy sputum; a heart rate elevation with a narrowing pulse pressure; and asymmetrical chest wall movement with absent breath sounds on the operative side.
The correct answers identify findings indicative of major thoracentesis complications: re-expansion pulmonary edema (frothy sputum and coughing), hypovolemic shock due to fluid shifts (tachycardia and narrow pulse pressure), and pneumothorax (asymmetrical chest movement and absent breath sounds). These require immediate life-saving interventions.

Adım Adım Çözüm

1
Analyze the procedure and the volume of fluid removed.
The client had a thoracentesis with 1,600 mL1,600\text{ mL} of fluid removed.
Rapid removal of more than 1,0001,000 to 1,500 mL1,500\text{ mL} of pleural fluid significantly increases the risk of hemodynamic instability and pulmonary complications.
2
Evaluate each finding for signs of re-expansion pulmonary edema, pneumothorax, or shock.
Frothy sputum indicates pulmonary edema; a narrowing pulse pressure with tachycardia indicates shock; asymmetrical chest movement indicates pneumothorax.
These are the most common life-threatening complications of large-volume thoracentesis that require immediate rapid response.
3
Differentiate expected clinical improvements and normal findings from true complications.
Normal ABG values, a normalized respiratory rate, and resting on the unaffected side are all expected or positive outcomes.
Safe prioritization requires distinguishing between stable/improving clinical status and acute physiological decompensation.

Anahtar Kavram

Post-Thoracentesis Complication Recognition
Soru 1842Soru →

An adult client is admitted to the medical-surgical unit and requires continuous enteral feedings through a newly placed percutaneous endoscopic gastrostomy (PEG) tube. The nursing team is establishing a daily care routine to maintain skin integrity, prevent complications, and ensure physiological stability. Which of the following actions are appropriate for the nurse to implement? (Select all that apply)

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Cevap: Elevate the head of the bed to at least 30 degrees while the enteral formula is infusing.; Provide comprehensive oral hygiene every 4 hours using a soft-bristled toothbrush or oral swab.; Wash the skin immediately surrounding the gastrostomy tube daily with mild soap and warm water.

Cevap

The correct actions include elevating the head of the bed to at least 30 degrees, providing oral hygiene every 4 hours, and washing the skin around the tube daily with mild soap and warm water.
Appropriate care for a client with a PEG tube includes measures that prioritize airway safety and basic tissue integrity. Elevating the head of the bed prevents aspiration of gastric contents. Providing frequent oral care keeps mucous membranes moist and prevents bacterial overgrowth, which is common when clients are not eating by mouth. Cleansing the stoma site daily with mild soap and water removes irritating gastric enzymes and prevents skin breakdown.

Adım Adım Çözüm

1
Analyze the client's primary intervention: continuous enteral feeding via a PEG tube.
Identify that the primary risks associated with this therapy are aspiration, impaired skin integrity at the stoma site, and poor oral hygiene due to lack of oral intake.
Understanding the physiological impact of enteral nutrition directs appropriate basic care and comfort measures.
2
Evaluate each option against safe nursing practice and basic care guidelines.
Positioning the head of the bed at 30-45 degrees prevents aspiration. Washing the stoma daily and providing frequent oral care maintain tissue integrity and promote comfort.
These actions align directly with fundamental nursing protocols for enteral nutrition support.
3
Identify contraindicated actions and improper delegations.
Delegating assessment to a UAP, feeding while flat, and dismissing sudden confusion as normal aging are dangerous practices that violate safety and assessment principles.
Recognizing what not to do is critical for preventing client harm and practicing within the RN scope.

Anahtar Kavram

Basic care for clients with enteral feeding tubes focuses on aspiration prevention (positioning), maintaining skin integrity (stoma care), and ensuring oral comfort.
Soru 1843Soru →

A nurse enters a client's room and discovers that the intravenous tubing has disconnected from the client's central venous catheter. The client is suddenly experiencing severe dyspnea, tachycardia, and a feeling of impending doom. Suspecting an air embolism, arrange the following nursing actions in the correct priority order to minimize further physiological risk.

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Cevap

The correct priority sequence is: Clamp the catheter, position the client in the left lateral Trendelenburg position, administer 100% oxygen, activate the rapid response team, and continuously monitor vital signs.
The priority sequence in an air embolism emergency focuses on immediately stopping further air entry, preventing the embolus from traveling to the pulmonary circulation, treating hypoxemia, and securing advanced medical support. Clamping the catheter addresses the direct cause. The left lateral Trendelenburg position uses gravity to trap the air in the right ventricle. High-flow oxygen is then applied to treat tissue hypoxia and shrink the nitrogen bubble, followed by obtaining emergency assistance and continuous monitoring.

Adım Adım Çözüm

1
Clamp the central venous catheter.
The source of air entry into the circulatory system is immediately stopped.
Preventing further air entry is the absolute first priority to minimize the size of the embolus.
2
Place the client in the left lateral Trendelenburg position.
The air bubble rises and becomes trapped in the apex of the right ventricle.
This positioning prevents the air embolus from being pumped into the pulmonary artery, where it could cause a fatal pulmonary embolism.
3
Administer 100% oxygen via a non-rebreather mask.
The client receives maximal oxygenation.
High-flow oxygen treats severe hypoxemia and establishes a diffusion gradient that helps resorb nitrogen gas from the air embolus.
4
Activate the rapid response team and notify the healthcare provider.
Emergency medical personnel are dispatched to the client's room.
Once immediate stabilizing measures are in place, advanced medical interventions must be prepared.
5
Continuously monitor the client's vital signs and oxygen saturation.
The client's hemodynamic and respiratory status is closely tracked.
Ongoing assessment is necessary to detect deterioration and guide further resuscitation efforts until the rapid response team arrives.

Anahtar Kavram

Emergency management of a central venous catheter-associated air embolism prioritizes immediately stopping air entry, utilizing therapeutic positioning (left lateral Trendelenburg) to trap the air, and maximizing oxygenation.
Soru 1844Soru →

A client with a complete T4 spinal cord injury reports a sudden, severe, throbbing headache and blurred vision. The nurse observes profuse diaphoresis above the level of the injury and obtains a blood pressure reading of 218/114 mm Hg. Arrange the following nursing interventions in the priority order of execution.

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Cevap

The correct priority sequence for managing autonomic dysreflexia is to first sit the client upright, then loosen restrictive clothing, identify and correct the most common trigger (bladder), check for the second most common trigger (bowel), and finally administer antihypertensive medication if non-pharmacological measures fail.
Autonomic dysreflexia is a medical emergency characterized by an uninhibited sympathetic response to a noxious stimulus below the level of the spinal cord injury (typically at or above T6). The immediate priority is to lower the blood pressure to prevent a hemorrhagic stroke, which is achieved first by elevating the head of the bed (taking advantage of orthostatic hypotension). The next step is to remove any immediate cutaneous triggers by loosening tight clothing. The nurse must then systematically identify and remove the underlying noxious stimulus. Because bladder distention is the most common cause, assessing the urinary catheter or bladder is the next priority. If the bladder is not the cause, the bowel is assessed for impaction (using anesthetic to prevent further stimulation). Finally, if conservative measures fail to resolve the hypertensive crisis, short-acting antihypertensive medications are administered.

Adım Adım Çözüm

1
Place the client in a high-Fowler's position.
The client's head is elevated, promoting orthostatic reduction in blood pressure.
This is the most critical initial action to immediately lower blood pressure and prevent cerebral hemorrhage.
2
Loosen any restrictive clothing or tight devices.
Potential sensory triggers on the skin are removed.
Tactile stimuli from tight clothing can exacerbate the excessive sympathetic response.
3
Assess the indwelling urinary catheter tubing for kinks or obstruction.
The most common source of noxious stimuli is evaluated.
A distended bladder is the leading cause of autonomic dysreflexia, and resolving it often terminates the crisis.
4
Examine the rectum for fecal impaction after applying a topical anesthetic ointment.
The second most common source of noxious stimuli is evaluated.
If the bladder is empty, bowel impaction must be ruled out. Anesthetic is required to avoid worsening the sympathetic response during digital stimulation.
5
Administer the prescribed short-acting antihypertensive medication.
Blood pressure is pharmacologically lowered.
Medications are indicated if the noxious stimulus cannot be found or removed, or if the blood pressure remains dangerously high despite interventions.

Anahtar Kavram

Management of autonomic dysreflexia requires immediate positional changes to lower blood pressure, followed by rapid identification and removal of noxious stimuli, beginning with the bladder, then the bowel, prior to pharmacological intervention.
Soru 1845Soru →

A client with severe acute pancreatitis is receiving continuous total parenteral nutrition (TPN) through a single-lumen peripherally inserted central catheter (PICC). During the shift, the client develops a temperature of 101.4°F (38.6°C) and a white blood cell count of 16,000/mm³. The healthcare provider prescribes intermittent intravenous (IV) ciprofloxacin every 12 hours. Which nursing action ensures the safe administration of the prescribed antibiotic?

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Cevap: Establish a separate peripheral intravenous catheter to administer the ciprofloxacin.

Cevap

The nurse must establish a separate peripheral intravenous catheter to administer the antibiotic.
Total parenteral nutrition (TPN) solutions contain complex mixtures of dextrose, amino acids, and often lipids that are highly prone to chemical precipitation when mixed with other medications. Additionally, the high dextrose content makes the TPN line a prime site for bacterial growth. Evidence-based guidelines mandate that a single-lumen central venous catheter used for TPN must be dedicated exclusively to the TPN infusion. Administering any other medication through this lumen compromises the integrity of the line, increases the risk of central line-associated bloodstream infections (CLABSI), and risks physical incompatibility. Therefore, the nurse must establish a separate peripheral IV access to safely administer the antibiotic.

Adım Adım Çözüm

1
Analyze the client's current intravenous access and the new medication order.
The client has a single-lumen PICC that is actively being used for a continuous TPN infusion, and requires a new intermittent IV antibiotic.
Identifying the specific type of IV access and the nature of the continuous infusion is required to determine medication compatibility and safe administration routes.
2
Evaluate the principles of TPN administration and central line management.
Evidence-based practice mandates that TPN requires a strictly dedicated line due to its complex chemical composition, high osmolarity, and significant risk for microbial growth.
Understanding that TPN lines cannot be shared or repeatedly accessed prevents potentially fatal complications like chemical precipitation or central line-associated bloodstream infections (CLABSI).
3
Determine the safest method to administer the newly prescribed ciprofloxacin.
Because the only existing central access is a single lumen dedicated to TPN, the nurse must establish a new peripheral IV site.
Creating a separate access point ensures the antibiotic is delivered safely without disrupting or contaminating the life-sustaining TPN therapy.

Anahtar Kavram

Total Parenteral Nutrition (TPN) requires a strictly dedicated intravenous line. No other medications, fluids, or blood products should be administered through a single-lumen catheter actively infusing TPN.
Soru 1846Soru →

A nurse is preparing to administer an intermittent intravenous (IV) infusion of phenytoin to a client who has a single peripheral IV catheter. The client is currently receiving a continuous IV infusion of 5% dextrose in water (D5W). Which of the following is the most appropriate action by the nurse?

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Cevap: Stop the D5W infusion, flush the IV catheter with 0.9% sodium chloride, infuse the phenytoin, and flush again with 0.9% sodium chloride.

Cevap

The most appropriate action is to stop the D5W infusion, flush the IV catheter with 0.9% sodium chloride, infuse the phenytoin, and flush again with 0.9% sodium chloride.
The correct action ensures the safe administration of phenytoin by preventing it from mixing with dextrose. Phenytoin is physically incompatible with all dextrose-containing solutions and will form a solid precipitate if mixed. Because the client has only one IV access site, the nurse must temporarily stop the primary infusion, flush the line thoroughly with 0.9% sodium chloride (normal saline) to clear the dextrose, administer the phenytoin, and flush again with normal saline before resuming the primary infusion.

Adım Adım Çözüm

1
Analyze the physical compatibility between the prescribed medication (phenytoin) and the continuous IV fluid (D5W).
Phenytoin is strictly incompatible with any solution containing dextrose.
Mixing phenytoin with dextrose causes immediate crystallization and precipitation, creating a severe risk for an embolism.
2
Determine the required compatible diluent and flush solution for phenytoin administration.
0.9% sodium chloride (normal saline) is the only compatible fluid for mixing and flushing phenytoin.
Normal saline maintains the chemical stability of the phenytoin solution and prevents the formation of solid particles.
3
Formulate a safe administration sequence using the client's single peripheral IV site.
The primary D5W infusion must be paused, and the IV line must be flushed with normal saline both before and after the phenytoin is infused.
This sequence completely isolates the phenytoin from the dextrose within the IV tubing, ensuring safe drug delivery without requiring an additional venipuncture.

Anahtar Kavram

Intravenous (IV) medication compatibility and safe administration of phenytoin
Soru 1847Soru →

A surgical client is transferred to the acute care unit after undergoing a left eye cataract removal. To ensure safety and promote optimal healing, which intervention should the nurse implement?

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Cevap: Position the client on the nonoperative side with the upper body slightly raised.

Cevap

Position the client on the nonoperative side with the upper body slightly raised.
After cataract surgery, it is essential to prevent increases in intraocular pressure (IOP). Positioning the client on the nonoperative side or supine with the upper body slightly raised promotes venous return, decreases orbital edema, and protects the surgical site from direct pressure.

Adım Adım Çözüm

1
Identify the surgical procedure and its physiological implications.
The client had a left cataract extraction, which requires avoiding any increase in intraocular pressure (IOP).
Increased IOP can cause bleeding, stress on the suture line, and permanent eye damage.
2
Evaluate each intervention for its effect on intraocular pressure and general post-operative safety.
Sleeping on the operative side or bending at the waist increases IOP. Delegating evaluation is outside UAP scope.
Safe positioning minimizes pressure on the affected eye, and the RN must perform all clinical assessments.
3
Select the intervention that best promotes comfort without compromising the surgical site.
Positioning the client on the nonoperative side (right side) or supine with the head elevated is the correct action.
This position uses gravity to reduce edema and prevents direct physical pressure on the left eye.

Anahtar Kavram

Postoperative Positioning for Eye Surgery
Soru 1848Soru →

A nurse is preparing to perform open-system tracheostomy tube suctioning for an adult client who is experiencing audible coarse crackles and a sudden decrease in oxygen saturation. To minimize the risk of mucosal trauma and hypoxemia, arrange the following procedural steps in the correct chronological sequence. All options must be used.

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Cevap

The correct sequence ensures patient safety by prioritizing equipment preparation, pre-oxygenation, atraumatic insertion, proper positioning at the carina, safe suctioning limits, and physiological recovery.
Performing tracheostomy suctioning requires strict adherence to a specific chronological sequence to minimize the risks of hypoxemia, atelectasis, mucosal trauma, and infection. Validating a safe suction pressure (100-120 mm Hg) is the critical first step to ensure the equipment will not cause harm. Hyperoxygenation must immediately precede insertion to provide an oxygen reservoir for the client. The catheter is then inserted without suction to protect the mucosa, advanced until resistance is felt (indicating contact with the carina), and immediately withdrawn slightly (1-2 cm) to prevent mucosal invagination into the catheter tip. Suction is applied only during withdrawal, accompanied by a twisting motion, and strictly limited to 10-15 seconds to prevent profound hypoxemia. Finally, the client must be allowed to recover while being monitored before any subsequent passes are attempted.

Adım Adım Çözüm

1
Prepare and verify equipment parameters.
Wall suction is confirmed at a safe setting of 100 to 120 mm Hg for an adult.
Prevents tissue avulsion from excessive pressure and ensures functional clearance capacity.
2
Pre-oxygenate the client.
Client receives 100% oxygen prior to the procedure.
Compensates for the inevitable oxygen depletion that occurs when both air and secretions are suctioned from the airway.
3
Insert the catheter passively.
The sterile catheter is advanced down the tracheostomy tube without active suction.
Reduces friction and prevents adherence to the tracheal wall, avoiding mucosal stripping.
4
Position the catheter tip safely.
After meeting resistance at the carina, the catheter is pulled back 1 to 2 cm.
The carina is highly sensitive; direct suctioning on it causes severe trauma and can stimulate dangerous vagal bradycardia.
5
Apply active suction and remove.
Continuous suction is applied while twisting the catheter outward for 10 to 15 seconds max.
Twisting clears lateral secretions, while the strict time limit prevents profound atelectasis and hypoxia.
6
Evaluate and rest.
Vital signs and breath sounds are checked.
Determines the effectiveness of the intervention and allows the client to re-establish normal oxygenation.

Anahtar Kavram

Airway Management: Tracheostomy Suctioning Protocol
Tahmini Süre:1m 30s
Soru 1849Soru →

A nurse is evaluating an adult client with a history of severe left ventricular failure who suddenly exhibits extreme dyspnea, copious pink-tinged frothy sputum, and profound diaphoresis. Assessment reveals cold, mottled extremities. Current vital signs are a heart rate of 134 beats/minute, respiratory rate of 36 breaths/minute, and blood pressure of 78/50 mm Hg. Arterial blood gas (ABG) analysis on room air indicates a pH of 7.15, PaCO2 of 62 mm Hg, PaO2 of 48 mm Hg, and HCO3 of 18 mEq/L. Which action should the nurse take first?

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Cevap: Prepare the client for immediate positive pressure ventilation and anticipate the administration of an intravenous positive inotrope.

Cevap

The correct priority action is to prepare the client for immediate positive pressure ventilation and anticipate the administration of an intravenous positive inotrope.
The client is experiencing acute cardiogenic shock complicated by fulminant pulmonary edema, as evidenced by the profound hypotension, mottled extremities, and pink-tinged frothy sputum. The ABG reveals a life-threatening mixed respiratory and metabolic acidosis alongside severe hypoxemia. Applying the ABC (Airway, Breathing, Circulation) framework, the immediate priority is to correct the critical gas exchange failure and decrease the work of breathing via positive pressure ventilation (such as BiPAP or intubation). Concurrently, circulation must be supported with an inotrope to increase cardiac contractility without volume overloading the failing heart.

Adım Adım Çözüm

1
Analyze the clinical presentation and vital signs.
The client has pink frothy sputum, dyspnea, hypotension (78/50 mm Hg), tachycardia, and mottled extremities.
These findings collectively indicate acute pulmonary edema complicated by cardiogenic shock, meaning the heart is failing as a pump and fluid is backing up into the lungs.
2
Interpret the arterial blood gas (ABG) results.
pH is severely low (7.15), PaCO2 is elevated (62 mm Hg), PaO2 is critically low (48 mm Hg), and HCO3 is low (18 mEq/L).
This indicates a severe mixed respiratory and metabolic acidosis. The respiratory component is from fluid-filled alveoli preventing gas exchange, while the metabolic component (lactic acidosis) stems from poor tissue perfusion due to cardiogenic shock.
3
Prioritize nursing interventions using the ABCs (Airway, Breathing, Circulation) and Maslow's hierarchy.
Airway and Breathing require immediate positive pressure ventilation to force fluid out of the alveoli and improve oxygenation. Circulation requires inotropic support (e.g., dobutamine) to improve the pumping action of the heart without fluid loading.
Correcting the hypoxemia and providing mechanical support decreases the work of breathing, while inotropes address the root cause of the hypotension (pump failure).

Anahtar Kavram

Prioritization in Cardiogenic Shock and Mixed Acidosis
Soru 1850Soru →

A client who is hemodynamically unstable is admitted to the critical care unit. The client's body weight is recorded as 187 lbs187\text{ lbs}. The healthcare provider prescribes a continuous intravenous infusion of norepinephrine at 0.05 mcg/kg/min0.05\text{ mcg/kg/min}. The pharmacy dispenses an intravenous solution containing norepinephrine 4 mg4\text{ mg} in 250 mL250\text{ mL} of 0.9% Sodium Chloride0.9\%\text{ Sodium Chloride}. At what rate should the nurse program the infusion pump? Record your answer in mL/hr\text{mL/hr} and round to the nearest tenth.

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Cevap: 15.9

Cevap

15.9
To accurately program the infusion pump for a weight-based continuous drip, dimensional analysis is used to bridge the ordered dose (0.05 mcg/kg/min0.05\text{ mcg/kg/min}) to the pump setting (mL/hr\text{mL/hr}). The weight is first converted to 85 kg85\text{ kg}. The hourly dose required is 255 mcg/hr255\text{ mcg/hr}. Because the bag contains 4 mg4\text{ mg} (4000 mcg4000\text{ mcg}) in 250 mL250\text{ mL}, the concentration is 16 mcg/mL16\text{ mcg/mL}. Dividing the hourly dose by the concentration yields 15.937515.9375, which rounds appropriately to 15.915.9.

Adım Adım Çözüm

1
Convert weight from pounds to kilograms.
187 lbs÷2.2 lbs/kg=85 kg187\text{ lbs} \div 2.2\text{ lbs/kg} = 85\text{ kg}
Weight-based dosing requires the client's weight in kilograms.
2
Calculate the total dose prescribed per minute.
0.05 mcg/kg/min×85 kg=4.25 mcg/min0.05\text{ mcg/kg/min} \times 85\text{ kg} = 4.25\text{ mcg/min}
This establishes the exact amount of medication the client needs every minute.
3
Calculate the total dose required per hour.
4.25 mcg/min×60 min/hr=255 mcg/hr4.25\text{ mcg/min} \times 60\text{ min/hr} = 255\text{ mcg/hr}
Infusion pumps are programmed in mL per hour, so the dose must reflect an hourly rate.
4
Determine the medication concentration in mcg/mL.
4 mg=4000 mcg4\text{ mg} = 4000\text{ mcg}; 4000 mcg÷250 mL=16 mcg/mL4000\text{ mcg} \div 250\text{ mL} = 16\text{ mcg/mL}
The prescribed dose is in micrograms, so the available medication must be converted to match.
5
Calculate the final infusion rate and round to the nearest tenth.
255 mcg/hr÷16 mcg/mL=15.9375 mL/hr255\text{ mcg/hr} \div 16\text{ mcg/mL} = 15.9375\text{ mL/hr}, which rounds to 15.9 mL/hr15.9\text{ mL/hr}.
Dividing the hourly dose by the concentration yields the volume required per hour.

Anahtar Kavram

Weight-based complex continuous intravenous infusions.
Soru 1851Soru →

An adult client requires a large-volume cleansing enema for the treatment of severe constipation. The nurse has gathered all necessary supplies and warmed the solution. In what order must the nurse execute the following procedural steps to safely administer the enema? (Arrange the steps in the correct chronological sequence.)

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Cevap

The correct sequence is: position the client in the left lateral Sims position, lubricate the rectal tube, insert the tube into the rectum, elevate the container to the proper height, and finally release the clamp.
Administering an enema requires a logical sequence prioritizing anatomical alignment, client safety, and comfort. Proper positioning (left lateral Sims) must occur first. The tube is then lubricated to prevent tissue injury before being gently inserted into the rectum. Once the tube is correctly placed, the container is elevated to the appropriate height to establish safe hydrostatic pressure. Only after these preparatory and positioning steps are complete should the nurse release the clamp to begin fluid instillation.

Adım Adım Çözüm

1
Determine the optimal client position.
Assist the client into the left lateral Sims position.
This uses gravity to aid fluid flow into the descending and sigmoid colon.
2
Prepare the tubing for insertion.
Lubricate the distal tip of the tube.
This minimizes mucosal irritation and prevents trauma.
3
Insert the tube.
Advance the tube 3 to 4 inches toward the umbilicus.
This ensures passage past the sphincters while respecting the bowel's natural contour.
4
Establish the correct fluid pressure.
Elevate the enema bag 12 to 18 inches above the anus.
Proper elevation prevents rapid instillation that could cause excessive cramping or damage.
5
Initiate fluid flow.
Release the tubing clamp.
This allows gravity to instill the solution slowly into the colon.

Anahtar Kavram

Cleansing Enema Administration Sequence
Soru 1852Soru →

A nurse is caring for a client in the intensive care unit who is experiencing severe hypotension and weighs 87 kg87\text{ kg}. The healthcare provider prescribes a continuous intravenous (IV) infusion of norepinephrine at 0.05 mcg/kg/min0.05\text{ mcg/kg/min}. The pharmacy dispenses norepinephrine 4 mg4\text{ mg} in 250 mL250\text{ mL} of 5%5\% dextrose in water (D5W\text{D}_5\text{W}). At what rate should the nurse set the IV infusion pump in mL/hr\text{mL/hr}? (Round the answer to the nearest tenth. Do not use a trailing zero.)

Cevabı ve açıklamayı göster

Cevap: 16.3

Cevap

16.3
The correct infusion rate is calculated by first determining the total hourly dose required for the client's specific weight (0.05 mcg/kg/min×87 kg×60 min/hr=261 mcg/hr0.05\text{ mcg/kg/min} \times 87\text{ kg} \times 60\text{ min/hr} = 261\text{ mcg/hr}). Next, the concentration of the IV bag is found by converting milligrams to micrograms (4 mg=4000 mcg4\text{ mg} = 4000\text{ mcg}) and dividing by the total volume (4000 mcg/250 mL=16 mcg/mL4000\text{ mcg} / 250\text{ mL} = 16\text{ mcg/mL}). Finally, dividing the hourly dose by the concentration gives the pump rate (261 mcg/hr÷16 mcg/mL=16.3125 mL/hr261\text{ mcg/hr} \div 16\text{ mcg/mL} = 16.3125\text{ mL/hr}), which rounds to 16.316.3.

Adım Adım Çözüm

1
Calculate the prescribed dose per minute based on the client's weight.
0.05 mcg/kg/min×87 kg=4.35 mcg/min0.05\text{ mcg/kg/min} \times 87\text{ kg} = 4.35\text{ mcg/min}
The prescription is weight-based, so the total microgram dose per minute must be determined first.
2
Convert the prescribed dose per minute to the prescribed dose per hour.
4.35 mcg/min×60 min/hr=261 mcg/hr4.35\text{ mcg/min} \times 60\text{ min/hr} = 261\text{ mcg/hr}
IV infusion pumps deliver medication at an hourly rate (mL/hr\text{mL/hr}), requiring the dose to be converted from minutes to hours.
3
Determine the concentration of the dispensed IV solution in mcg/mL\text{mcg/mL}.
4 mg×1000 mcg/mg=4000 mcg4\text{ mg} \times 1000\text{ mcg/mg} = 4000\text{ mcg}. Then, 4000 mcg/250 mL=16 mcg/mL4000\text{ mcg} / 250\text{ mL} = 16\text{ mcg/mL}.
The prescribed dose is in micrograms, so the medication supplied in milligrams must be converted to match the units before calculating the volume.
4
Calculate the final infusion rate in mL/hr\text{mL/hr} and round to the nearest tenth.
261 mcg/hr÷16 mcg/mL=16.3125 mL/hr261\text{ mcg/hr} \div 16\text{ mcg/mL} = 16.3125\text{ mL/hr}. Rounded to the nearest tenth is 16.316.3.
Dividing the required hourly dose by the concentration yields the exact volume needed per hour. Rounding to the nearest tenth is standard for critical care infusions.

Anahtar Kavram

Weight-based continuous intravenous (IV) medication calculation and infusion pump programming.

Alternatif Yöntem

Dimensional analysis can be used to solve this in a single equation: X mL/hr=(250 mL/4 mg)×(1 mg/1000 mcg)×(0.05 mcg/1 kg×1 min)×(87 kg/1)×(60 min/1 hr)=16.3125 mL/hrX\text{ mL/hr} = (250\text{ mL} / 4\text{ mg}) \times (1\text{ mg} / 1000\text{ mcg}) \times (0.05\text{ mcg} / 1\text{ kg} \times 1\text{ min}) \times (87\text{ kg} / 1) \times (60\text{ min} / 1\text{ hr}) = 16.3125\text{ mL/hr}.
Tahmini Süre:2m 0s
Soru 1853Soru →

A nurse is caring for a client who is receiving continuous enteral nutrition via a nasogastric tube. Upon entering the room, the nurse observes the client coughing forcefully, expectorating formula, and displaying circumoral cyanosis. Arrange the following nursing actions in the priority order they should be performed. (Place the first action at the top and the last action at the bottom.)

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Cevap

The correct sequence is: Stop the feeding, position and suction the airway, administer oxygen, assess vital signs and lung sounds, and then notify the healthcare provider.
In any medical emergency, the nurse must first remove the immediate source of harm and then systematically follow the ABC (Airway, Breathing, Circulation) framework. Stopping the feeding halts the aspiration source. Positioning the client laterally and suctioning clears the airway. Administering oxygen supports breathing and treats cyanosis. Only after these life-saving, stabilizing interventions are performed should the nurse conduct a full diagnostic assessment and notify the provider for further orders.

Adım Adım Çözüm

1
Identify and remove the immediate threat to the client.
The continuous enteral feeding infusion is stopped.
Stopping the pump immediately halts the ongoing source of the aspiration.
2
Secure the client's airway.
The client is placed in a lateral position and the oropharynx is suctioned.
This removes formula from the airway and prevents further downward aspiration, satisfying the 'Airway' priority.
3
Support breathing and oxygenation.
Supplemental oxygen is administered.
Circumoral cyanosis indicates hypoxia; providing oxygen addresses the 'Breathing' priority after the airway is clear.
4
Assess physiological status.
Vital signs and lung sounds are obtained.
A comprehensive assessment is required to evaluate the client's response to interventions and determine the extent of pulmonary compromise.
5
Communicate clinical findings.
The primary healthcare provider is notified.
Medical intervention, such as diagnostic imaging or antibiotic therapy, will be needed following a significant aspiration event.

Anahtar Kavram

Prioritization of nursing interventions during an acute aspiration event following the ABC (Airway, Breathing, Circulation) framework.
Soru 1854Soru →

A client with severe chronic obstructive pulmonary disease reports acute shortness of breath and exhaustion while trying to rest. The individual is currently in a semi-Fowler's position but continues to use accessory muscles to breathe. Which action should the nurse take to improve respiratory comfort?

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Cevap: Assist the client to sit on the edge of the bed while leaning forward and resting their arms on an overbed table

Cevap

Assist the client to sit on the edge of the bed while leaning forward and resting their arms on an overbed table.
The orthopneic position, achieved by having the client sit on the edge of the bed and lean forward over an overbed table, allows maximum expansion of the chest. This posture presses the lower part of the chest against the table and uses the upper body weight to assist the accessory muscles of respiration, significantly improving respiratory comfort and efficiency for clients with severe chronic obstructive pulmonary disease.

Adım Adım Çözüm

1
Assess the client's respiratory status and current positioning.
The client is experiencing acute dyspnea and using accessory muscles despite being elevated in a semi-Fowler's position.
Identifying the inadequacy of the current position is necessary to determine the next intervention for comfort.
2
Select the optimal position to maximize lung expansion and reduce the work of breathing.
The orthopneic position (sitting up and leaning forward) is chosen and implemented.
This posture allows maximum expansion of the chest and utilizes gravity to pull the abdominal organs away from the diaphragm.

Anahtar Kavram

Positioning to promote respiratory comfort and lung expansion (Orthopneic position)
Soru 1855Soru →

A client with suspected hepatic cirrhosis is transferred to the clinical unit immediately following a percutaneous liver biopsy. Which of the following nursing actions is the priority to reduce the risk of the most significant complication associated with this procedure?

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Cevap: Position the client in a right side-lying position with a folded towel beneath the biopsy site.

Cevap

The priority action is to position the client in a right side-lying position with a folded towel beneath the biopsy site.
The correct answer involves positioning the client on their right side. The liver is a highly vascular organ located in the right upper quadrant of the abdomen. Placing the client in a right side-lying (lateral decubitus) position, often with a small towel or pillow under the puncture site, applies direct external pressure to the liver capsule. This mechanical compression uses the client's body weight to achieve hemostasis and prevent internal hemorrhage, which is the most critical and life-threatening complication following a liver biopsy.

Adım Adım Çözüm

1
Identify the primary risk associated with a percutaneous liver biopsy.
The liver is highly vascular, making internal hemorrhage the most significant and life-threatening post-procedure complication.
Understanding the most critical complication dictates the priority nursing intervention.
2
Determine the appropriate physical intervention to mitigate this risk.
Direct mechanical pressure must be applied to the puncture site to achieve hemostasis.
External compression prevents blood from freely leaking into the peritoneal cavity.
3
Select the correct anatomical positioning to achieve this compression.
Since the liver is located in the right upper quadrant, placing the client in a right lateral position uses the client's own body weight to apply necessary pressure.
Correct positioning is a non-pharmacological, immediate action that significantly reduces the risk of bleeding.

Anahtar Kavram

Post-procedure care and positioning to prevent hemorrhage following invasive procedures on highly vascular organs.
Soru 1856Soru →

A nurse is caring for a 4545-year-old client who is 22 hours post-operative following an abdominal hysterectomy. Initial vital signs upon arrival to the unit were: blood pressure 118/76118/76 mm Hg, heart rate 8888 beats/min, and respiratory rate 1616 breaths/min. One hour later, the client's vital signs are: blood pressure 110/84110/84 mm Hg, heart rate 112112 beats/min, and respiratory rate 2222 breaths/min. The client reports feeling increasingly anxious and thirsty. Which of the following is the priority nursing action?

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Cevap: Assess the abdominal surgical dressing and perineal pad for active bleeding.

Cevap

The priority action is to assess the abdominal surgical dressing and perineal pad for active bleeding.
The correct answer is to assess the surgical dressing and perineal area for active bleeding. The client is exhibiting early compensatory signs of hypovolemic shock, indicated by a narrowing pulse pressure (from 4242 mm Hg down to 2626 mm Hg), tachycardia, tachypnea, anxiety, and thirst. The immediate priority is to identify the source of the hemorrhage so that targeted interventions can begin.

Adım Adım Çözüm

1
Analyze the client's vital sign trends over time.
The pulse pressure has narrowed significantly from 4242 mm Hg to 2626 mm Hg, the heart rate has increased from 8888 to 112112 beats/min, and the respiratory rate has increased.
Comparing current hemodynamic data to baseline is essential for identifying early physiological deterioration.
2
Correlate the vital sign changes with the client's subjective symptoms.
The combination of a narrowing pulse pressure, tachycardia, tachypnea, anxiety, and thirst points to early, compensatory hypovolemic shock.
Subjective symptoms like anxiety and thirst are early clinical indicators of decreased tissue perfusion and oxygenation.
3
Determine the priority nursing action based on the assessment findings.
The nurse must immediately assess for the source of fluid or blood loss, which in this postoperative client is most likely the surgical site.
Identifying the active cause of hemorrhage is required before definitive medical interventions (like fluid resuscitation or returning to surgery) can be implemented.

Anahtar Kavram

Early recognition of hypovolemic shock and prioritization of assessments in the postoperative client.
Soru 1857Soru →

A nurse is caring for a client receiving intravenous fluids via a central venous catheter. The nurse enters the room and observes that the IV tubing has disconnected from the catheter hub. The client is suddenly exhibiting severe dyspnea, tachycardia, and expresses a feeling of impending doom. Arrange the following nursing actions in the correct order of priority.

Öğeleri doğru sıraya koymak için sürükleyin

Cevabı ve açıklamayı göster

Cevap

The correct sequence is to first clamp the catheter, then place the client in the left lateral Trendelenburg position, followed by administering high-flow oxygen, notifying the healthcare team, and finally obtaining vital signs.
In the event of a suspected air embolism from a central venous catheter, the nurse must act immediately to stop the air entry by clamping the line. The next physiological priority is to prevent the air bubble from traveling to the pulmonary circulation by placing the client in the left lateral Trendelenburg position. Once the air is trapped and further entry is prevented, oxygenation is supported with 100% oxygen to treat hypoxemia and shrink the nitrogen bubble. Only after these immediate life-saving actions are complete should the nurse call for advanced help and gather assessment data like vital signs.

Adım Adım Çözüm

1
Clamp the central venous catheter immediately.
Prevents further air from entering the circulatory system.
When an air embolism is suspected due to a disconnected central line, eliminating the source of air entry is the highest priority.
2
Position the client in the left lateral Trendelenburg position.
Displaces the air embolus to the right ventricular apex.
This positioning prevents the air from migrating into the pulmonary arterial circulation, which would cause an obstruction.
3
Administer 100% high-flow oxygen via a non-rebreather mask.
Treats hypoxemia and accelerates nitrogen absorption.
High concentrations of oxygen reduce the size of the air bubble by creating a diffusion gradient that pulls nitrogen out of the embolus.
4
Activate the Rapid Response Team and notify the healthcare provider.
Escalates care and brings advanced support to the bedside.
The client has experienced a life-threatening complication requiring advanced medical interventions and potential transfer to the intensive care unit.
5
Obtain a complete set of vital signs and initiate continuous cardiac monitoring.
Provides objective data on the client's hemodynamic status.
Assessment follows life-saving interventions to evaluate the client's response and detect complications like arrhythmias or shock.

Anahtar Kavram

Management of a Central Venous Catheter Air Embolism
Soru 1858Soru →

A 68-year-old client is transferred to the progressive care unit following a percutaneous coronary intervention (PCI) utilizing a right femoral artery approach. The client has a history of hypertension and osteoarthritis. Three hours post-procedure, the nurse performs a scheduled assessment and notes the following:
- Blood pressure is 104/62 mm Hg, down from a pre-procedure baseline of 142/86 mm Hg.
- Heart rate has increased to 112 bpm from 74 bpm.
- The right groin dressing remains dry and intact without visible hematoma.
- Bilateral pedal pulses are equal and easily palpable.
- The client reports, "My lower back is aching severely, but it is probably just my arthritis acting up from this firm mattress."

Which action should the nurse take first to reduce the client's risk for physiological decompensation?

Cevabı ve açıklamayı göster

Cevap: Gently roll the client to one side to inspect the flank and posterior lower back for ecchymosis

Cevap

The nurse should gently roll the client to one side to inspect the flank and posterior lower back for ecchymosis.
The client is exhibiting subtle signs of a retroperitoneal hemorrhage, a critical complication of femoral artery access. Manifestations include back or flank pain, tachycardia, and hypotension. Because blood pools in the retroperitoneal space, the anterior groin dressing often remains dry and intact. The priority action is to visually assess the flank and lower back for ecchymosis (Grey Turner's sign) or swelling before notifying the healthcare provider.

Adım Adım Çözüm

1
Analyze the client's vital sign trends and symptom presentation.
The client exhibits a significantly lower blood pressure and higher heart rate than baseline, combined with new-onset severe back pain.
Identifying physiological deviations from baseline is necessary to recognize impending complications.
2
Correlate the clinical findings with the recent procedure (femoral PCI).
The femoral artery was accessed, creating a risk for hemorrhage. The combination of tachycardia, hypotension, and back pain suggests blood may be pooling internally in the retroperitoneal space.
Retroperitoneal hemorrhage is a life-threatening complication where bleeding occurs behind the peritoneum, often leaving the anterior groin dressing dry.
3
Determine the priority nursing intervention to confirm the suspected complication and reduce risk.
The nurse must inspect the posterior flank and lower back for physical signs of bleeding to validate the suspicion before urgently notifying the provider.
Thorough assessment of the suspected bleeding site directs immediate, life-saving interventions.

Anahtar Kavram

Recognition of subtle indicators of retroperitoneal hemorrhage following femoral artery access.
Tahmini Süre:1m 30s
Soru 1859Soru →

An 82-year-old individual is receiving inpatient treatment for pneumonia. Due to profound fatigue, the healthcare provider has prescribed strict bed rest. The client requires total assistance with personal hygiene and mobility. Which nursing action is most appropriate to promote comfort and prevent complications of immobility?

Cevabı ve açıklamayı göster

Cevap: Elevate the head of the bed to 30 degrees and utilize a friction-reducing sheet when pulling the client upward.

Cevap

The correct action is to elevate the head of the bed to 30 degrees and use a friction-reducing sheet when repositioning the client.
Elevating the head of the bed to no more than 30 degrees and using a friction-reducing device (like a draw sheet or slider board) significantly reduces shearing forces and friction against the skin. This protects skin integrity, prevents the client from constantly sliding downward, and promotes respiratory comfort for a bedbound individual with pneumonia.

Adım Adım Çözüm

1
Analyze the client's clinical status and specific risks.
The client is 82 years old, completely bedbound, and profoundly fatigued, placing them at high risk for skin breakdown, shearing injuries, and complications of immobility like deep vein thrombosis (DVT).
Identifying the primary risks of immobility determines the priority basic care and comfort interventions.
2
Evaluate the proposed positioning and mobility intervention.
Elevating the head of the bed to 30 degrees and using a friction-reducing sheet prevents the client from sliding down and eliminates skin shear during repositioning.
Shearing forces and friction are primary mechanical causes of pressure injuries in bedbound clients.
3
Assess the distractors for unsafe practices or incorrect assumptions.
Placing a blanket directly under the knees causes venous stasis; UAPs cannot perform clinical skin assessments; and sudden incontinence is an abnormal, acute symptom, not a normal part of aging.
Ruling out unsafe or incorrect actions ensures the selected intervention represents evidence-based, safe nursing practice.

Anahtar Kavram

Immobility Management and Skin Integrity
Soru 1860Soru →

During a shift in the cardiac care unit, a nurse evaluates a client experiencing severe pulmonary edema secondary to cardiogenic shock. The client is currently receiving a continuous dobutamine infusion via their only patent peripheral intravenous (IV) catheter. A new stat prescription for intravenous furosemide is received. Which of the following actions must the nurse perform to safely administer the medication?

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Cevap: Initiate a new peripheral intravenous catheter to administer the furosemide.

Cevap

The nurse must initiate a new peripheral intravenous catheter to administer the furosemide, preventing drug precipitation and avoiding the interruption of life-sustaining inotropic support.
Establishing a separate intravenous line is the only safe approach. Furosemide is highly alkaline, whereas dobutamine is acidic. Administering them together in the same line will cause immediate physical precipitation. Furthermore, dobutamine is an essential inotropic agent with a very short half-life. Pausing the infusion, even briefly to flush and push another drug, can result in rapid and profound hemodynamic deterioration in a client with cardiogenic shock.

Adım Adım Çözüm

1
Evaluate the compatibility of the newly prescribed intravenous furosemide with the continuous dobutamine infusion.
Identify that furosemide (alkaline) and dobutamine (acidic) are physically incompatible and will form a precipitate.
Mixing incompatible medications in a single line can cause crystal formation, leading to catheter occlusion or pulmonary embolism.
2
Consider alternative administration techniques using the existing single peripheral line, such as pausing the primary infusion.
Determine that pausing the dobutamine infusion is unsafe.
Dobutamine is a critical vasoactive medication with a very short half-life; interrupting the continuous flow can precipitate sudden hemodynamic instability in a client experiencing shock.
3
Select the safest administration method that adheres to pharmacological principles.
Choose to establish a second peripheral intravenous access site.
This guarantees that the life-saving dobutamine infusion remains uninterrupted while safely delivering the incompatible stat diuretic.

Anahtar Kavram

Intravenous Compatibility and Vasoactive Infusion Safety
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Physiological Integrity Alıştırma Soruları — NCLEX-RN — Sayfa 93 | Examkin