Physiological Integrity

1960 soru

Soru 1141Soru →

An oncology client with severe mucositis has developed distributive shock secondary to a suspected bloodstream infection. The client has a double-lumen peripherally inserted central catheter (PICC) in place with the following active infusions:

- Distal port: Continuous infusion of norepinephrine to sustain a mean arterial pressure (MAP) above 65 mm Hg.
- Proximal port: Continuous infusion of total parenteral nutrition (TPN) with added regular insulin.

The provider issues a stat order to administer a 100 mL intravenous bag of a broad-spectrum antibiotic over 30 minutes. Which intervention demonstrates the most appropriate clinical judgment regarding the administration of this antibiotic?

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Cevap: Obtain a new peripheral intravenous access site and administer the antibiotic through the independent line.

Cevap

The correct action is to obtain a new peripheral intravenous access site and administer the antibiotic through the independent line.
The correct action is to establish new peripheral access. TPN must always have a strictly dedicated line to minimize central line-associated bloodstream infection (CLABSI) risk. Furthermore, pausing TPN that contains regular insulin places the client at high risk for acute rebound hypoglycemia, eliminating the proximal port as an option. The distal port cannot be used because it contains a life-sustaining vasopressor. Connecting a secondary piggyback would automatically pause the primary pressor on a smart pump, causing lethal hypotension. Alternatively, infusing the antibiotic concurrently through the same lumen at a rapid rate (100 mL over 30 minutes = 200 mL/hr) acts as a massive physical flush. This forcibly pushes the highly concentrated norepinephrine residing in the catheter's internal dead space directly into the client's systemic circulation, precipitating a dangerous hypertensive crisis. Therefore, initiating an independent peripheral line is the only safe clinical decision.

Adım Adım Çözüm

1
Evaluate the proximal port for safe medication administration.
The port is dedicated to TPN with insulin.
TPN requires a strictly dedicated line due to high infection and precipitation risks. Furthermore, pausing insulin-containing TPN abruptly causes severe rebound hypoglycemia.
2
Evaluate the distal port for safe medication administration.
The port is actively infusing norepinephrine.
Norepinephrine is a life-sustaining continuous vasopressor. Piggybacking would pause it, causing lethal hypotension.
3
Analyze the hemodynamic impact of concurrent infusion into the vasopressor line.
Infusing a 100 mL bag over 30 minutes (200 mL/hr) into the same lumen will rapidly flush the norepinephrine resting in the catheter's internal dead space into the client.
This 'speed shock' flush causes a dangerous hypertensive crisis, making concurrent infusion completely unsafe.
4
Determine the safest alternative route for the antibiotic.
A new peripheral intravenous line must be established.
It is the only physiological and mechanical way to deliver the antibiotic without compromising the TPN or triggering hemodynamic collapse.

Anahtar Kavram

Safe administration of intermittent IV medications in critically ill clients requires strictly preserving dedicated TPN lines and understanding the fatal hemodynamic consequences of flushing catheter dead space in vasopressor lines.
Soru 1142Soru →

A client who underwent a cardiac catheterization via the right femoral artery is currently on strict bed rest. The nurse observes that the client has been incontinent of urine and needs immediate perineal care and a linen change. Which of the following is the most appropriate action for the nurse to take?

Cevabı ve açıklamayı göster

Cevap: Assist the client to turn onto the left side while maintaining the right leg in a straight, neutral position.

Cevap

The most appropriate action is to assist the client to turn onto the left side while maintaining the right leg in a straight, neutral position.
Following a cardiac catheterization via the femoral artery, the client must remain on bed rest with the affected extremity kept completely straight to prevent hematoma formation and bleeding. When basic care such as a linen change is required, the safest and most appropriate approach is for the nurse to gently assist the client to turn toward the unaffected side (the left side) while strictly maintaining the affected right leg in a straight, neutral position. This provides access for hygiene while protecting the vascular access site.

Adım Adım Çözüm

1
Identify the client's post-procedure requirements.
The client had a right femoral cardiac catheterization and requires strict bed rest with the affected right leg kept completely straight.
To prevent hemorrhage and hematoma formation at the high-pressure arterial puncture site.
2
Evaluate the basic care task required.
The client needs immediate perineal care and a linen change due to urinary incontinence.
To maintain skin integrity, prevent infection, and provide basic comfort.
3
Determine the safest method to execute the care.
The client can be turned to the unaffected (left) side by the nurse, as long as the right leg is kept completely straight and supported.
This approach successfully balances the physiological need for arterial site protection with the basic care need for hygiene.

Anahtar Kavram

Post-Cardiac Catheterization Basic Care and Positioning
Soru 1143Soru →

A nurse is preparing to administer an intravenous (IV) push medication through a client's established peripheral intermittent infusion device (saline lock). Arrange the following actions in the correct chronological sequence from first to last.

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Cevap

The correct sequence is to clean the access port, flush the catheter with normal saline to check patency, administer the medication, and then flush the catheter again with normal saline.
The standard procedure for administering an IV push medication through a saline lock follows the SAS method: Saline flush, Administer medication, Saline flush. Before any connection is made, the port must be thoroughly cleaned with an antimicrobial swab to maintain asepsis. The initial flush verifies IV patency. The medication is then administered. The final flush ensures the entire dose enters the bloodstream and clears the line to prevent occlusion.

Adım Adım Çözüm

1
Clean the access port of the infusion device with an antimicrobial swab.
The surface of the port is disinfected.
Prevents the introduction of microorganisms into the client's bloodstream during access.
2
Attach a syringe of normal saline and flush the peripheral intravenous catheter.
The IV line is assessed for patency and proper placement.
Ensures the medication will enter the vein safely and not infiltrate surrounding tissues.
3
Administer the prescribed medication at the recommended rate of injection.
The therapeutic agent is delivered to the client.
Provides the required pharmacological treatment while preventing rapid administration complications.
4
Flush the intravenous catheter again with normal saline.
The medication is cleared from the tubing.
Ensures the client receives the complete prescribed dose and helps maintain catheter patency for future use.

Anahtar Kavram

Safe administration of intravenous medications via a saline lock relies on the standard SAS (Saline, Administer, Saline) procedure combined with strict aseptic technique.
Soru 1144Soru →

A nurse is caring for a client who is receiving continuous enteral nutrition via a nasogastric tube. Which of the following positions is the most appropriate for this client to prevent complications?

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Cevap: Semi-Fowler's position with the head of the bed elevated 30 to 45 degrees

Cevap

Semi-Fowler's position with the head of the bed elevated 30 to 45 degrees
Elevating the head of the bed to 30 to 45 degrees (semi-Fowler's position) is a foundational standard of care for clients receiving continuous enteral feedings. This position uses gravity to keep the formula in the stomach, thereby reducing the risk of gastric reflux and life-threatening aspiration pneumonia.

Adım Adım Çözüm

1
Identify the client's current treatment and the primary associated risk.
The client is receiving continuous enteral nutrition via a nasogastric tube. The major complication associated with this therapy is pulmonary aspiration of the feeding formula.
Recognizing the most critical safety risk determines the priority nursing intervention.
2
Determine the physiological mechanism needed to mitigate the risk.
Gravity must be utilized to keep the liquid formula within the stomach and prevent it from traveling back up the esophagus.
Non-pharmacological positioning is the standard first-line defense against aspiration.
3
Select the client position that best achieves this gravitational benefit.
Elevating the head of the bed to a 30 to 45-degree angle (semi-Fowler's position) provides the necessary elevation to prevent reflux.
This specific angle safely prevents aspiration while maintaining client comfort and minimizing shear forces on the sacral skin.

Anahtar Kavram

Prevention of aspiration during enteral feeding via proper positioning
Tahmini Süre:45s
Soru 1145Soru →

An adult client is currently receiving a transfusion of packed red blood cells (PRBCs) through a 20-gauge peripheral intravenous catheter to treat acute blood loss anemia following a surgical procedure. During the transfusion, the client experiences a sudden episode of severe post-operative nausea and vomiting. The healthcare provider prescribes an immediate dose of intravenous ondansetron. The client currently has no other vascular access. Which of the following actions is the most appropriate way to safely administer the medication?

Cevabı ve açıklamayı göster

Cevap: Establish a new peripheral intravenous catheter in a different vein to administer the medication.

Cevap

Establish a new peripheral intravenous catheter in a different vein to administer the medication.
The correct action is to initiate a secondary intravenous line. Blood products must infuse through a dedicated line using specialized Y-tubing. To prevent red blood cell lysis, medication incompatibility, and contamination, no medications may be mixed with packed red blood cells or injected into the blood administration set. Because the client needs immediate relief for severe nausea and vomiting, establishing a new access point is the only safe intervention that allows prompt treatment without compromising the blood product.

Adım Adım Çözüm

1
Evaluate the current intravenous access and the prescribed therapy.
The client has only one IV line, which is currently dedicated to a packed red blood cell transfusion.
Before administering any medication, the nurse must ensure there is safe and compatible vascular access.
2
Determine the compatibility rules for blood product administration.
Blood products are incompatible with almost all medications and intravenous solutions, except for 0.9%0.9\% sodium chloride. Medications cannot be mixed into blood tubing.
Mixing medications with blood can cause red blood cell lysis (hemolysis), precipitation, and severe patient harm.
3
Prioritize the client's immediate physiological needs.
The client has severe nausea and active vomiting, requiring immediate intervention to prevent distress and aspiration.
Delaying treatment for active vomiting is unsafe, meaning the medication must be given promptly rather than waiting hours for the transfusion to finish.
4
Select the safest intervention that addresses both constraints.
Initiating a second peripheral IV line allows for the immediate administration of the antiemetic without interrupting or compromising the ongoing blood transfusion.
Establishing secondary access adheres to infection control, medication compatibility standards, and acute symptom management protocols.

Anahtar Kavram

Safe Administration of Blood Products and Intravenous Medications
Soru 1146Soru →

A client who recently experienced a cerebrovascular accident has dense left-sided hemiplegia. The nursing team is establishing a schedule to maintain body alignment, prevent joint deformities, and ensure skin integrity. Which action is the most appropriate to include in this client's daily care?

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Cevap: Place a trochanter roll alongside the lateral aspect of the client's left thigh.

Cevap

The most appropriate action is to place a trochanter roll alongside the lateral aspect of the client's left thigh.
Placing a trochanter roll along the lateral aspect of the paralyzed leg prevents external rotation of the hip, which is a common and debilitating complication in clients with hemiplegia. This intervention maintains proper anatomical alignment, protects the joint capsule, and promotes overall comfort as part of basic care.

Adım Adım Çözüm

1
Analyze the client's condition and the goals of care.
The client has left-sided hemiplegia (paralysis) and needs interventions for joint alignment and skin integrity.
Understanding the deficits guides the selection of safe and therapeutic comfort measures.
2
Evaluate the physiological impact of hemiplegia on the lower extremities.
A paralyzed leg naturally tends to roll outward (external rotation) due to gravity and lack of muscle tone.
Identifying the natural pathological tendency highlights the need for a mechanical counter-measure.
3
Determine the correct positioning intervention.
A trochanter roll placed laterally along the thigh physically prevents the hip from rotating outward.
This maintains neutral anatomical alignment, preventing permanent joint deformities and promoting comfort.

Anahtar Kavram

Therapeutic Positioning and Alignment for Hemiplegia
Soru 1147Soru →

A nurse is preparing to assist a healthcare provider with a bedside thoracentesis for an adult client with a large pleural effusion. To ensure client safety and reduce the risk of procedural complications, arrange the following nursing actions in the correct chronological order.

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Cevap

The correct sequence is: Verify informed consent, properly position the client, provide intra-procedure safety instructions, apply an occlusive dressing, and finally obtain a post-procedure chest radiograph.
The correct sequence follows the logical progression of care for an invasive bedside procedure: pre-procedure legal verification, anatomical preparation (positioning), intra-procedure safety management, immediate post-procedure site care, and subsequent monitoring for potential iatrogenic complications.

Adım Adım Çözüm

1
Verify informed consent.
Legal and ethical prerequisites are met.
Informed consent is mandatory before any invasive diagnostic procedure begins.
2
Position the client appropriately.
The client is sitting upright, leaning forward over a bedside table.
This specific orthopneic position maximizes the intercostal spaces and provides optimal access to the pleural cavity while reducing the risk of organ puncture.
3
Provide safety instructions during the procedure.
The client understands to avoid coughing or moving.
Movement during needle insertion can cause the needle to lacerate the lung, leading to a pneumothorax.
4
Apply an occlusive sterile dressing.
The puncture site is immediately sealed.
Sealing the site prevents air from being drawn into the negative-pressure pleural space as the client breathes.
5
Obtain a follow-up chest radiograph.
Diagnostic imaging is performed.
An x-ray confirms the removal of pleural fluid and rules out complications such as pneumothorax or hemothorax.

Anahtar Kavram

Thoracentesis Safety and Risk Reduction
Soru 1148Soru →

A nurse is preparing to initiate a continuous enteral tube feeding for an immobile client. To effectively reduce the risk of potentially life-threatening respiratory complications, which action must the nurse take?

Cevabı ve açıklamayı göster

Cevap: Maintain the head of the bed elevated at 30 to 45 degrees throughout the infusion.

Cevap

The nurse must maintain the head of the bed elevated at 30 to 45 degrees throughout the continuous enteral feeding.
Elevating the head of the bed to at least 30 to 45 degrees is a fundamental nursing intervention that uses gravity to keep enteral formula within the stomach. This significantly reduces the risk of regurgitation and subsequent pulmonary aspiration, which is a common and highly dangerous complication of tube feedings.

Adım Adım Çözüm

1
Identify the primary physiological risk associated with continuous enteral tube feedings.
The most significant risk is regurgitation of the liquid formula leading to pulmonary aspiration.
Immobile clients have a diminished ability to clear their airway if stomach contents back up into the esophagus.
2
Determine the most effective nursing intervention to physically prevent this complication.
Positioning the client upright utilizes gravity to contain the fluid.
Maintaining the head of the bed at 30 to 45 degrees ensures formula stays in the stomach, directly reducing the risk potential for aspiration.

Anahtar Kavram

Aspiration Prevention in Enteral Feedings
Soru 1149Soru →

A nurse is caring for a hemodynamically unstable client with severe sepsis who has a blood pressure of 82/40 mm Hg. The client is receiving a continuous intravenous (IV) infusion of norepinephrine through the distal port of a newly placed triple-lumen central venous catheter (CVC). The provider prescribes a 500 mL bolus of 0.9% sodium chloride and pantoprazole 40 mg IV push. Which of the following actions represent safe parenteral medication administration and physiological management for this client? (Select all that apply.)

Geçerli olan tümünü seçin

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Cevap: Initiate the 0.9% sodium chloride bolus through a separate peripheral IV or a different central line lumen rather than the one infusing norepinephrine.; Aspirate for a brisk blood return from the selected central venous catheter lumen to confirm patency prior to administering the pantoprazole.; Verify the Y-site compatibility of pantoprazole with any other continuous infusions if a shared central line lumen must be utilized.

Cevap

The correct actions are: initiating the fluid bolus through a separate line, aspirating for blood return prior to IV push administration, and verifying Y-site compatibility before using a shared lumen.
Safe parenteral therapy in critical care demands that high-risk continuous infusions like norepinephrine remain uninterrupted and un-bolused. Using a separate line for fluid resuscitation prevents speed shock. Verifying blood return ensures the central line is intravascular and safe for use, while checking Y-site compatibility prevents catheter occlusion from drug precipitation.

Adım Adım Çözüm

1
Evaluate the implications of the client's hemodynamic status (BP 82/40 mm Hg) on positioning.
Determine that high-Fowler's position is contraindicated because it decreases venous return and exacerbates hypotension.
Maintaining adequate preload is essential in septic shock.
2
Analyze the safety risks of manipulating a central line lumen currently infusing a high-alert vasopressor (norepinephrine).
Identify that flushing or bolusing through this specific lumen is prohibited.
Flushing pushes the residual vasopressor in the catheter rapidly into the bloodstream, causing a dangerous spike in blood pressure.
3
Determine the correct administration protocols for central lines and IV push pantoprazole.
Confirm that aspirating for blood return, verifying compatibility, and pushing the medication slowly (over 2 minutes) are required.
These steps ensure the medication enters the vein safely without precipitating or causing adverse rapid-infusion reactions.

Anahtar Kavram

Safe administration of parenteral therapies in critically ill clients requires meticulous line management, strict adherence to infusion rates, verification of compatibility, and physiological considerations such as positioning for shock.
Soru 1150Soru →

A nurse is formulating a plan of care for a client who has just returned to the nursing unit following a bronchoscopy with a transbronchial lung biopsy under conscious sedation. Which nursing interventions should be included in the plan of care to reduce the risk of post-procedure complications? Select all that apply.

Geçerli olan tümünü seçin

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Cevap: Withhold all oral food and fluids until the return of the client's gag reflex is verified.; Assess respiratory effort, continuous oxygen saturation, and bilateral lung sounds.; Reassure the client that a small amount of blood-streaked sputum is an expected finding.

Cevap

The appropriate risk-reduction interventions are to withhold all oral intake until the gag reflex returns, assess the respiratory status continuously, and reassure the client that a small amount of blood-streaked sputum is normal.
Appropriate risk reduction following a bronchoscopy prioritizes airway safety by delaying oral intake until the gag reflex returns, monitoring closely for pneumothorax through frequent lung assessments, and applying correct clinical judgment by recognizing that minor blood-tinged sputum is an expected consequence of a lung biopsy.

Adım Adım Çözüm

1
Analyze the specific procedure and identify the associated physiological risks.
The client underwent a bronchoscopy with a transbronchial biopsy under conscious sedation. The primary risks include aspiration, pneumothorax, hypoxia, and severe hemorrhage.
Identifying procedure-specific risks is essential for determining the most appropriate monitoring and complication prevention strategies.
2
Evaluate each intervention to determine if it directly mitigates the identified risks within the nursing scope of practice.
Withholding fluids successfully prevents aspiration, assessing lung sounds rapidly detects pneumothorax, and recognizing blood-streaked sputum as an expected finding prevents unnecessary patient alarm.
Interventions must be clinically accurate and directly address the physiological vulnerabilities created by the procedure.
3
Identify contraindicated actions and incorrect clinical interpretations among the distractors.
Supine positioning, delegating initial post-operative vital signs to a UAP, and treating a normal PaCO2 level (42 mm Hg) as an emergency are all incorrect and potentially unsafe actions.
These actions either increase the risk of complications (such as aspiration or missed clinical instability) or demonstrate poor interpretation of standard diagnostic data.

Anahtar Kavram

Post-procedure care and complication prevention following an invasive respiratory procedure (bronchoscopy with biopsy).
Soru 1151Soru →

During a clinical shift, a registered nurse is responsible for a patient receiving continuous hydration via a peripheral venous access device with 0.9%0.9\% sodium chloride. The provider orders multiple new intravenous pharmacological treatments. To maintain patient safety and adhere to standard parenteral protocols, which interventions must the nurse execute? Select all that apply.

Geçerli olan tümünü seçin

Cevabı ve açıklamayı göster

Cevap: Inspect the vascular access site for evidence of extravasation or phlebitis before delivering any pharmacological agents.; Disinfect the needleless connector using an antiseptic wipe with mechanical friction prior to syringe attachment.; Halt the primary hydration fluid and irrigate the tubing with 0.9%0.9\% sodium chloride before and after giving an incompatible intravenous push drug.

Cevap

The correct practices are to inspect the vascular access site, disinfect the needleless connector with friction, and halt/flush the line when giving incompatible medications.
The correct interventions directly support evidence-based parenteral therapy protocols. Routine site inspection prevents complications such as infiltration; vigorous mechanical friction applied to the needleless connector prevents bloodstream infections; and isolating incompatible medications using normal saline flushes prevents dangerous intravascular precipitation.

Adım Adım Çözüm

1
Evaluate the clinical scenario requirements.
The nurse must safely administer multiple new IV medications through an existing peripheral line infusing 0.9%0.9\% sodium chloride.
Understanding the baseline setup is critical to determining which parenteral safety protocols apply.
2
Analyze standard pre-administration protocols.
Assessing the site for complications and scrubbing the hub for asepsis are mandatory safety steps.
These actions prevent administering medications into compromised tissue and minimize central line-associated bloodstream infection (CLABSI) risks.
3
Analyze protocols for drug compatibility and high-alert medications.
Compatibility must always be verified. Incompatible medications require flushing before and after administration. Furthermore, potassium chloride requires an infusion pump.
Mixing incompatible medications causes precipitation, and infusing potassium chloride via gravity can lead to lethal arrhythmias.

Anahtar Kavram

Safe Intravenous Medication Administration Principles
Soru 1152Soru →

A client is recovering on the surgical unit 48 hours after undergoing a right above-the-knee amputation. Which basic care and comfort interventions should the nurse incorporate into the client's daily routine? Select all that apply.

Geçerli olan tümünü seçin

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Cevap: Position the client prone for 20 to 30 minutes three to four times daily.; Wash the residual limb with mild soap and warm water, ensuring it is completely dry.; Instruct the client to actively push the residual limb down against the mattress while supine.

Cevap

The correct interventions are positioning the client prone periodically, washing the residual limb with mild soap and water, and instructing the client to perform isometric exercises by pushing the limb against the mattress.
Prone positioning for 20 to 30 minutes several times a day stretches the flexor muscles and is a primary intervention to prevent hip flexion contractures, which are a major complication after lower extremity amputations. Washing the limb with mild soap and water maintains skin integrity without causing excessive dryness or maceration. Instructing the client to push the residual limb against the mattress consists of isometric exercises that strengthen muscles and prepare the limb for a prosthetic device.

Adım Adım Çözüm

1
Analyze the client's postoperative timeline and surgical procedure.
The client is 48 hours post-op from a right above-the-knee amputation.
The timeline is critical, as interventions that are acceptable in the first 24 hours (like elevation) become contraindicated later due to contracture risks.
2
Evaluate each intervention for safety, scope of practice, and physiological benefit.
Prone positioning, hygiene, and isometric exercises are beneficial and safe. Elevation, delegation of assessment, and immediate restraints are contraindicated or outside the scope of practice.
Basic care and comfort must align with standard postoperative safety guidelines and legal nursing boundaries.

Anahtar Kavram

Postoperative amputation care focuses on preventing joint contractures, maintaining skin integrity, and preparing the residual limb for a prosthesis.
Soru 1153Soru →

A pediatric nurse is caring for a toddler who weighs 16 kg16 \text{ kg} and is receiving treatment for bacterial meningitis. The client's current temperature is 38.9∘C38.9^\circ\text{C} (102∘F102^\circ\text{F}), heart rate is 135 bpm135 \text{ bpm}, and respiratory rate is 28 breaths/min28 \text{ breaths/min}. The client has a single-lumen peripheral intravenous (IV) catheter. The healthcare provider prescribes ampicillin 500 mg500 \text{ mg} IV and gentamicin 2.5 mg/kg2.5 \text{ mg/kg} IV. Both intermittent medications are scheduled to be administered at 09:00. The pharmacy supplies gentamicin in a multiple-dose vial labeled 20 mg/mL20 \text{ mg/mL}. Which of the following is the most appropriate action by the nurse?

Cevabı ve açıklamayı göster

Cevap: Draw up 2 mL2 \text{ mL} of gentamicin from the vial. Administer the ampicillin infusion first, thoroughly flush the IV line with 0.9% sodium chloride0.9\% \text{ sodium chloride}, and then administer the gentamicin infusion.

Cevap

Draw up 2 mL2 \text{ mL} of gentamicin from the vial. Administer the ampicillin infusion first, thoroughly flush the IV line with 0.9% sodium chloride0.9\% \text{ sodium chloride}, and then administer the gentamicin infusion.
The correct action involves first calculating the accurate dose: 16 kg×2.5 mg/kg=40 mg16 \text{ kg} \times 2.5 \text{ mg/kg} = 40 \text{ mg}. Next, calculating the required volume: 40 mg÷20 mg/mL=2 mL40 \text{ mg} \div 20 \text{ mg/mL} = 2 \text{ mL}. Because penicillins (like ampicillin) and aminoglycosides (like gentamicin) are physically incompatible and can chemically inactivate each other, they must not be mixed in the same IV line. For a client with a single-lumen catheter, the nurse must administer the medications sequentially and thoroughly flush the line with a compatible solution, such as 0.9% sodium chloride0.9\% \text{ sodium chloride}, between the infusions.

Adım Adım Çözüm

1
Calculate the required dose of gentamicin using the client's weight in kilograms.
16 kg×2.5 mg/kg=40 mg16 \text{ kg} \times 2.5 \text{ mg/kg} = 40 \text{ mg} of gentamicin.
Pediatric medication dosing is strictly weight-based and must be calculated accurately before administration to prevent toxicity or underdosing.
2
Calculate the volume of gentamicin needed from the supplied vial.
40 mg÷20 mg/mL=2 mL40 \text{ mg} \div 20 \text{ mg/mL} = 2 \text{ mL}.
To ensure the exact required physical volume is drawn from the vial for the intermittent infusion.
3
Evaluate the IV compatibility of the prescribed medications.
Ampicillin (a penicillin) and gentamicin (an aminoglycoside) are physically incompatible and chemically inactivate each other if mixed.
Medications scheduled for the same time must be checked for Y-site compatibility to prevent crystallization, precipitation, or loss of therapeutic efficacy.
4
Determine the correct administration sequence for a single-lumen IV line.
Administer the medications sequentially, thoroughly flushing the IV line with 0.9% sodium chloride0.9\% \text{ sodium chloride} between the infusions.
When incompatible medications are scheduled concurrently for a client with a single IV access, they must be given one after the other with adequate flushing to ensure the drugs never mix in the tubing.

Anahtar Kavram

Pediatric Weight-Based Dosage Calculation and IV Medication Compatibility
Tahmini Süre:2m 0s
Soru 1154Soru →

A client hospitalized with a bacterial infection has a continuous peripheral intravenous (IV) infusion of normal saline. The healthcare provider prescribes a scheduled dose of IV ciprofloxacin. Which safety check is the most critical for the nurse to perform before connecting the new medication to the primary line?

Cevabı ve açıklamayı göster

Cevap: Verify that the prescribed antibiotic is physically compatible with the running normal saline.

Cevap

Verify that the prescribed antibiotic is physically compatible with the running normal saline.
Before attaching any secondary medication to a primary intravenous line, the nurse must consult a drug reference guide or pharmacist to ensure the substances are physically and chemically compatible. Failure to do so can result in precipitation within the tubing, which can block the catheter or enter the client's bloodstream.

Adım Adım Çözüm

1
Identify the proposed procedure
The nurse needs to administer a secondary IV medication into an existing primary continuous IV line.
Understanding the route helps identify the associated risks, such as drug-drug interactions within the tubing.
2
Determine the highest priority safety check
Checking the compatibility of the two fluids is required.
Mixing incompatible intravenous fluids or medications can cause crystallization or precipitation in the tubing, posing a life-threatening risk to the client.

Anahtar Kavram

Intravenous Medication Compatibility
Soru 1155Soru →

A nurse is preparing to remove a client's non-tunneled central venous catheter (CVC). To reduce the risk of a potentially fatal air embolism, in what order should the nurse perform the following actions? Arrange the steps from first to last.

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Cevap

First position the client supine, then instruct them to perform the Valsalva maneuver, withdraw the catheter smoothly, and finally apply an occlusive dressing.
Removing a central venous catheter carries a high risk of air embolism if atmospheric air enters the central circulation. To reduce this risk, the nurse must manipulate pressure dynamics. First, placing the client in a supine or Trendelenburg position naturally increases central venous pressure. Second, having the client perform the Valsalva maneuver creates positive intrathoracic pressure, effectively blocking air from entering. Third, the catheter is withdrawn while this positive pressure is maintained. Finally, immediately applying an occlusive (air-tight) dressing seals the skin tract, preventing any subsequent air entry once the client resumes normal breathing.

Adım Adım Çözüm

1
Place the client in a flat, supine or slight Trendelenburg position.
Central venous pressure increases.
This prevents gravity from creating negative pressure that could draw air into the vein.
2
Instruct the client to take a deep breath and bear down (Valsalva maneuver).
Positive intrathoracic pressure is created.
Positive pressure in the chest prevents atmospheric air from being sucked into the central venous system.
3
Withdraw the catheter smoothly and continuously.
The catheter is removed safely.
Removing it during the Valsalva maneuver ensures air does not enter.
4
Apply immediate pressure with an occlusive dressing over the insertion site.
The insertion tract is sealed.
An occlusive dressing prevents air entry and pressure stops bleeding.

Anahtar Kavram

Central Venous Catheter Removal Safety Protocol
Soru 1156Soru →

A nurse is teaching a client who has left leg weakness how to ambulate safely using a straight cane. Arrange the following actions in the correct sequence from first to last to ensure a safe gait.

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Cevabı ve açıklamayı göster

Cevap

The correct sequence is: hold the cane in the right hand, move the cane forward, advance the left (weak) leg, and then advance the right (strong) leg.
Safe cane ambulation relies on maintaining a wide base of support and ensuring weight is distributed safely. The client must first hold the cane on the unaffected (stronger) side—in this case, the right hand. The sequence of a step begins by moving the cane forward 6 to 10 inches. Next, the weaker (left) leg is brought forward to align with the cane so that the strong leg and the cane support the body's weight. Finally, the stronger (right) leg is advanced past the cane to complete the step.

Adım Adım Çözüm

1
Determine which hand should hold the cane.
The cane should be held in the right hand.
A cane is placed on the unaffected (stronger) side. Since the client has left leg weakness, the right side is the strong side.
2
Identify the first movement in the ambulation sequence.
The cane is moved forward 6 to 10 inches.
Establishing a forward point of contact widens the base of support before any legs are lifted.
3
Determine which leg steps forward first.
The left (weaker) leg is advanced to align with the cane.
The weaker leg moves while the strong right leg remains planted securely behind, sharing the body's weight with the cane.
4
Identify the final movement in the step.
The right (stronger) leg is advanced past the cane.
The strong leg steps through to complete the stride, momentarily relying on the cane and the weaker leg for stability.

Anahtar Kavram

Assistive device use: Cane ambulation sequence
Soru 1157Soru →

A nurse is preparing to administer a prescribed dose of cefepime 1 gram in 50 mL50\text{ mL} of 0.9%0.9\% sodium chloride intravenously over 30 minutes30\text{ minutes} to a client with a respiratory tract infection. At what rate in mL/hr\text{mL/hr} should the nurse set the intravenous infusion pump? Record your answer as a whole number.

Cevabı ve açıklamayı göster

Cevap: 100

Cevap

100
To determine the correct IV pump rate in mL/hr\text{mL/hr}, the nurse must calculate how many milliliters would infuse in 60 minutes based on the prescribed rate. By dividing the total volume (50 mL50\text{ mL}) by the time in hours (0.5 hours0.5\text{ hours}), the calculation is 50 mL0.5 hr=100 mL/hr\frac{50\text{ mL}}{0.5\text{ hr}} = 100\text{ mL/hr}. Alternatively, using the standard formula: 50 mL30 min×60 min/hr=100 mL/hr\frac{50\text{ mL}}{30\text{ min}} \times 60\text{ min/hr} = 100\text{ mL/hr}. Setting the pump to 100 mL/hr100\text{ mL/hr} ensures the entire 50 mL50\text{ mL} volume is delivered exactly in 30 minutes30\text{ minutes}.

Adım Adım Çözüm

1
Identify the total volume of the IV solution.
50 mL50\text{ mL}
The infusion pump rate calculation requires the total volume of fluid to be administered.
2
Identify the total prescribed infusion time.
30 minutes30\text{ minutes}
The prescription specifies the duration over which the medication must safely infuse.
3
Convert the infusion time from minutes to hours.
0.5 hours0.5\text{ hours} (since 30÷60=0.530 \div 60 = 0.5)
Intravenous infusion pumps are programmed in mL/hr\text{mL/hr}, requiring a time conversion if the order is written in minutes.
4
Calculate the final pump rate.
100 mL/hr100\text{ mL/hr}
Dividing the volume by the time in hours: 50 mL0.5 hr=100 mL/hr\frac{50\text{ mL}}{0.5\text{ hr}} = 100\text{ mL/hr}.

Anahtar Kavram

Calculating intravenous infusion pump rates in mL/hr for intermittent piggyback medications.
Tahmini Süre:45s
Soru 1158Soru →

A nurse is preparing to administer 40 mEq of intravenous (IV) potassium chloride (KCl) to a client with a serum potassium level of 2.8 mEq/L (2.8 mmol/L). Which of the following actions demonstrates the safest method for administering this parenteral therapy?

Cevabı ve açıklamayı göster

Cevap: Ensure the medication is diluted in a large volume of IV fluid and infused via an electronic pump at a maximum rate of 10 mEq per hour.

Cevap

Ensure the medication is diluted in a large volume of IV fluid and infused via an electronic pump at a maximum rate of 10 mEq per hour.
Intravenous potassium chloride is a high-alert medication that must always be diluted and administered via an electronic infusion pump to prevent cardiac arrhythmias and arrest. The standard maximum safe administration rate for a peripheral line is 10 mEq per hour to prevent both cardiac toxicity and severe phlebitis at the IV site.

Adım Adım Çözüm

1
Identify the medication and its safety profile.
Potassium chloride (KCl) is identified as a high-alert medication.
Improper administration of KCl can rapidly lead to fatal cardiac arrhythmias.
2
Determine the mandatory administration rules for IV KCl.
It must be diluted, administered via an infusion pump, and never given IV push.
These controls prevent sudden spikes in serum potassium levels.
3
Verify the safe infusion rate.
The maximum safe rate is generally 10 mEq/hr through a peripheral line.
Exceeding this rate causes venous irritation and risks cardiac toxicity.

Anahtar Kavram

Safe Intravenous Administration of Potassium Chloride
Tahmini Süre:1m 0s
Soru 1159Soru →

A 58-year-old client with end-stage cirrhosis and severe ascites is scheduled to undergo a bedside paracentesis. Which of the following nursing actions is the priority to reduce the risk of a serious complication during this procedure?

Cevabı ve açıklamayı göster

Cevap: Assisting the client to empty their bladder immediately before the procedure.

Cevap

Assisting the client to empty their bladder immediately before the procedure.
A full bladder can extend upward into the abdominal cavity, placing it in the direct path of the paracentesis needle. Having the client void immediately prior to the procedure decompresses the bladder, dropping it down into the pelvis. This fundamental nursing action significantly reduces the risk of an accidental, life-threatening bladder perforation.

Adım Adım Çözüm

1
Analyze the anatomical risks associated with a paracentesis.
The procedure involves inserting a trocar into the abdominal cavity. A distended bladder extends upward into this space.
Understanding the anatomical relationship between the bladder and the abdominal cavity identifies the primary puncture risk.
2
Determine the optimal intervention to mitigate this risk.
Emptying the bladder reduces its size and keeps it safely within the pelvis.
A decompressed bladder is protected from accidental puncture by the paracentesis needle, directly reducing a major procedural complication.

Anahtar Kavram

Paracentesis Safety and Risk Reduction
Soru 1160Soru →

A nurse is teaching basic mobility techniques to an older adult client who is 2 days post-operative following a right total hip arthroplasty (posterior approach). The client is preparing to transfer from a standing position using a standard walker to a sitting position in an armchair. Which instruction should the nurse provide to ensure client safety and comfort?

Cevabı ve açıklamayı göster

Cevap: Extend your right leg forward, reach back to grasp the chair's armrests, and lower yourself using your left leg.

Cevap

The correct instruction is to extend the right leg forward, reach back to grasp the chair's armrests, and lower the body using the left leg.
The correct answer maintains the integrity of the total hip arthroplasty by keeping the operative right leg extended, which prevents dangerous hip flexion past 90 degrees. Additionally, teaching the client to reach back for the chair's armrests follows safe assistive device principles, preventing the walker from tipping over during the weight transfer.

Adım Adım Çözüm

1
Identify the surgical procedure and its specific precautions.
The client had a right total hip arthroplasty via a posterior approach. Precautions include avoiding hip flexion greater than 90 degrees, internal rotation, and adduction.
Post-operative positioning rules are dictated by the surgical approach to prevent joint dislocation.
2
Determine the correct body mechanics for a walker-to-chair transfer.
The client must back up to the chair, reach back for the armrests, and avoid using the walker to bear weight while lowering into the seat.
Standard walkers can tip backward if pulled upon during the downward transition to sitting.
3
Integrate the THA precautions with the transfer mechanics.
The client must extend the operative (right) leg forward while sitting.
Extending the leg ensures the angle between the torso and the thigh never becomes less than 90 degrees during the seating motion.

Anahtar Kavram

Basic Care and Comfort: Safe Client Transfers and Positioning Precautions
ÖncekiSayfa 58 / 98Sonraki
Physiological Integrity Alıştırma Soruları — NCLEX-RN — Sayfa 58 | Examkin