Physiological Integrity

1960 soru

Soru 1941Soru →

A 68-year-old client with a history of severe chronic obstructive pulmonary disease (COPD) and a recent right-sided ischemic stroke is receiving continuous enteral tube feedings. The client suddenly develops severe dyspnea, coarse crackles in the bilateral lung bases, and an oxygen saturation of 84% on room air. To mitigate the risk of further physiological decompensation, which action is the priority for the nurse to perform?

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Cevap: Immediately stop the continuous enteral feeding infusion and prepare to suction the airway.

Cevap

Immediately stop the continuous enteral feeding infusion and prepare to suction the airway.
Stopping the enteral feeding is the immediate priority because the clinical presentation (sudden dyspnea, coarse crackles, hypoxia) strongly indicates active aspiration of the feeding formula. The client's history of a right-sided stroke increases dysphagia and aspiration risk. Halting the infusion immediately prevents further aspiration, and suctioning clears the airway to restore oxygenation.

Adım Adım Çözüm

1
Analyze the client's clinical presentation and risk factors.
The client has sudden dyspnea, coarse crackles, and hypoxia, combined with high risk factors (recent stroke causing potential dysphagia, and continuous tube feeding).
To identify the underlying physiological emergency, which is acute aspiration of the enteral formula.
2
Prioritize interventions based on the ABCs (Airway, Breathing, Circulation) framework.
Airway clearance is identified as the immediate, life-saving priority over other assessments or metabolic interventions.
Failure to secure the airway will lead to rapid respiratory failure and potential cardiac arrest.
3
Determine the specific mechanical intervention required.
Stopping the feeding pump prevents further fluid from entering the lungs, and preparing suction equipment allows for immediate clearing of the aspirated contents.
Removing the source of aspiration directly mitigates the risk of further physiological decompensation.

Anahtar Kavram

Prioritization in Aspiration and Airway Management
Tahmini Süre:1m 0s
Soru 1942Soru →

A nurse is performing a tubing change on a client's central venous catheter. The client suddenly gasps, reports severe chest pain, and exhibits acute dyspnea. Suspecting an air embolism, arrange the following nursing actions in the correct priority order from first to last.

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Cevap

The correct sequence of actions for a suspected air embolism is to first clamp the catheter, then position the client on their left side with the head lower than the feet, followed by administering high-flow oxygen, and finally activating the rapid response team.
When an air embolism is suspected during a central line procedure, the nurse must immediately stop the source by clamping the catheter. Next, positioning the client in a left lateral Trendelenburg position traps the air in the right ventricle, preventing it from entering the pulmonary artery. Administering oxygen is the next priority to treat hypoxia and shrink the nitrogen bubble. Finally, escalating care by activating the rapid response team ensures advanced medical support.

Adım Adım Çözüm

1
Clamp the catheter
Halts the entry of additional air into the venous system
Addresses the root cause immediately to prevent the embolism from worsening.
2
Position the client in left lateral Trendelenburg
Traps the air in the right ventricle
Uses gravity and anatomy to prevent the air bubble from entering the pulmonary artery and causing a right ventricular outflow tract obstruction.
3
Administer 100% oxygen
Improves oxygenation and creates a nitrogen gradient
Treats systemic hypoxia and helps dissolve the nitrogen portion of the air bubble into the bloodstream.
4
Activate rapid response
Escalates the level of care
Brings advanced medical support and providers to manage potential cardiovascular collapse.

Anahtar Kavram

Immediate mitigation of a suspected air embolism involves stopping the air entry and properly positioning the client before seeking further medical assistance.
Tahmini Süre:1m 0s
Soru 1943Soru →

An adult client is receiving care in the emergency department for ongoing seizure activity. Current vital signs include a blood pressure of 118/74 mmHg118/74 \text{ mmHg} and a heart rate of 108 beats/min108 \text{ beats/min}. The client has one peripheral intravenous (IV) catheter currently infusing 5%5\% dextrose in water (D5W) at 100 mL/hr100 \text{ mL/hr}. The provider prescribes an IV loading dose of phenytoin. Which technique is safest for the nurse to use when administering this therapy?

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Cevap: Pause the primary D5W infusion, flush the IV catheter with 0.9%0.9\% sodium chloride, deliver the phenytoin at a maximum rate of 50 mg/min50 \text{ mg/min}, and flush again with 0.9%0.9\% sodium chloride.

Cevap

The safest technique is to pause the primary D5W infusion, flush the line with 0.9%0.9\% sodium chloride, deliver the phenytoin at a rate not exceeding 50 mg/min50 \text{ mg/min}, and flush the line again with 0.9%0.9\% sodium chloride.
The correct action involves pausing the incompatible 5%5\% dextrose in water (D5W) infusion and clearing the line with 0.9%0.9\% sodium chloride (normal saline) before and after administration. Phenytoin is highly incompatible with dextrose and will precipitate if mixed. Additionally, it must be administered slowly at a rate not exceeding 50 mg/min50 \text{ mg/min} to prevent severe adverse cardiovascular reactions such as hypotension and arrhythmias.

Adım Adım Çözüm

1
Evaluate the compatibility of the prescribed medication (phenytoin) with the current continuous IV infusion (D5W).
Phenytoin is incompatible with dextrose solutions and will precipitate.
Recognizing incompatibilities prevents the formation of crystals in the IV line, which could lead to an embolism.
2
Determine the appropriate diluent and flush solution for phenytoin administration.
0.9%0.9\% sodium chloride (normal saline) is the only compatible fluid for flushing and diluting phenytoin.
Using the correct flush solution maintains medication stability and prevents precipitation in the tubing.
3
Identify the safe administration rate for IV push phenytoin.
The medication must be administered slowly, at a maximum rate of 50 mg/min50 \text{ mg/min}.
Rapid administration of phenytoin can cause severe cardiovascular adverse effects, including hypotension, bradycardia, and cardiovascular collapse.
4
Synthesize the findings to formulate the correct sequential administration technique.
The nurse must pause the incompatible D5W, flush with normal saline, give the medication slowly, and flush again with normal saline.
This sequence ensures IV line patency, prevents drug-solution precipitation, and avoids severe adverse reactions.

Anahtar Kavram

Safe intravenous administration of phenytoin, including diluent compatibility and infusion rate limits.
Soru 1944Soru →

An adult client is recovering on the medical-surgical unit following a percutaneous liver biopsy. During the afternoon assessment, the client reports a new onset of right shoulder pain. The electronic health record displays a gradual heart rate increase from 72 to 112 beats/min and a blood pressure shift from 124/76 mm Hg to 108/84 mm Hg over the last two hours. What is the priority nursing intervention?

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Cevap: Notify the rapid response team and prepare to administer isotonic intravenous fluids.

Cevap

Notify the rapid response team and prepare to administer isotonic intravenous fluids.
The client's presentation—tachycardia, a narrowing pulse pressure (from 48 to 24 mm Hg), and referred right shoulder pain (Kehr's sign)—strongly indicates active internal bleeding from the liver biopsy site. In early hemorrhagic shock, the sympathetic nervous system triggers vasoconstriction, which raises diastolic blood pressure and narrows the pulse pressure, while simultaneously increasing the heart rate. The priority is to recognize these subtle but critical changes and immediately escalate care to the rapid response team while preparing for fluid resuscitation to maintain organ perfusion.

Adım Adım Çözüm

1
Analyze the client's vital sign trends over the last two hours.
The heart rate increased (72 to 112 beats/min) and the pulse pressure narrowed significantly (from 48 to 24 mm Hg).
Identifying subtle shifts in vital signs helps recognize early compensatory mechanisms for volume loss.
2
Interpret the new onset of right shoulder pain in the context of the recent procedure.
Right shoulder pain post-liver biopsy is a classic presentation of Kehr's sign, caused by diaphragmatic irritation from accumulating blood.
Connecting localized symptoms to the anatomical site of the procedure confirms the suspicion of internal hemorrhage.
3
Determine the priority nursing intervention based on the clinical picture.
The client is in early hemorrhagic shock. Immediate medical escalation and volume resuscitation are the highest priorities.
In acute decompensation, preserving circulation and tissue perfusion takes precedence over routine symptom management or further monitoring.

Anahtar Kavram

Early Recognition of Hemorrhagic Shock Post-Procedure
Tahmini Süre:1m 15s
Soru 1945Soru →

A nurse is preparing to administer a scheduled dose of 1 gram1 \text{ gram} of intravenous (IV) vancomycin to a client with a severe methicillin-resistant Staphylococcus aureus (MRSA) infection. The pharmacy has dispensed the medication in 250 mL250 \text{ mL} of 0.9%0.9\% sodium chloride. Which action demonstrates safe administration of this parenteral therapy?

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Cevap: Program the IV infusion pump to deliver the medication over a minimum of 6060 minutes.

Cevap

The nurse must program the IV infusion pump to deliver the vancomycin over a minimum of 60 minutes.
Vancomycin is a powerful glycopeptide antibiotic that can cause a histamine-mediated response known as vancomycin infusion reaction (formerly Red Man Syndrome) if administered too rapidly. To ensure patient safety, a dose of 1 gram1 \text{ gram} must be infused over a minimum of 6060 minutes. This prevents sudden severe hypotension, flushing, and a maculopapular rash on the face, neck, and torso.

Adım Adım Çözüm

1
Identify the specific medication and its known administration risks.
Vancomycin is a powerful antibiotic known to cause a severe histamine-mediated response if administered too quickly.
Recognizing drug-specific risks dictates the required administration rate and monitoring parameters.
2
Determine the safest infusion rate for the prescribed dose.
Standard safety protocols require infusing 1 gram1 \text{ gram} of vancomycin over at least 6060 minutes.
A slower infusion rate prevents the histamine release responsible for severe hypotensive infusion reactions.
3
Evaluate the alternative clinical actions for contraindications.
Co-administration with heparin is incompatible, rapid infusion is dangerous, and peak levels are drawn after (not before) the dose.
Eliminating contraindicated actions ensures the selected intervention represents evidence-based safe practice.

Anahtar Kavram

Safe Intravenous Administration of Vancomycin
Tahmini Süre:1m 0s
Soru 1946Soru →

A nurse is preparing to administer a mixture of regular insulin and NPH insulin to a client with type 2 diabetes mellitus. Arrange the following steps for drawing up these insulins in a single syringe in the correct chronological order.

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Cevap

The correct sequence for mixing insulin is: roll the NPH vial, inject air into the NPH vial, inject air into the regular insulin vial, withdraw the regular insulin, and finally withdraw the NPH insulin.
When mixing NPH (cloudy) and regular (clear) insulin, the standard safety protocol is 'clear before cloudy' for drawing the medication, but 'cloudy before clear' for injecting air. The sequence begins by rolling the NPH suspension to mix it. Next, air is injected into the NPH vial without touching the fluid. The needle is removed, and air is then injected into the regular insulin vial. The regular (clear) insulin is drawn up first to prevent contaminating the rapid/short-acting vial with the longer-acting NPH protein. Finally, the NPH (cloudy) insulin is drawn into the syringe.

Adım Adım Çözüm

1
Roll the NPH insulin vial gently between the palms of the hands.
The NPH insulin suspension is evenly mixed without creating air bubbles.
NPH is a suspension that settles when stationary; rolling ensures an accurate dose while avoiding foam that shaking would cause.
2
Inject air equal to the prescribed dose into the NPH insulin vial.
The NPH vial is pressurized for later withdrawal.
Injecting air prevents a vacuum from forming when fluid is removed. Doing this first prevents contamination of the clear insulin.
3
Inject air equal to the prescribed dose into the regular insulin vial.
The regular insulin vial is pressurized.
This prepares the clear insulin vial for immediate fluid withdrawal in the following step.
4
Invert the regular insulin vial and withdraw the prescribed dose.
The syringe contains the required amount of regular (clear) insulin.
Drawing the clear insulin first guarantees that no cloudy insulin is accidentally introduced into the rapid- or short-acting insulin vial.
5
Insert the needle into the NPH insulin vial and withdraw the prescribed dose.
The total combined dose is now in the syringe.
The cloudy insulin is drawn last. Since the vial was already pressurized with air in step 2, fluid can be withdrawn easily.

Anahtar Kavram

Safe Medication Administration: Mixing Insulins (Clear Before Cloudy)
Soru 1947Soru →

A nurse is monitoring a client admitted with acute pancreatitis who is at risk for hypovolemic shock due to severe fluid shifts. Which assessment finding should the nurse identify as the earliest physiological indicator of this complication?

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Cevap: A narrowing pulse pressure accompanied by mild restlessness

Cevap

A narrowing pulse pressure accompanied by mild restlessness is the earliest indicator of hypovolemic shock.
In the early (compensatory) stage of hypovolemic shock, the body activates the sympathetic nervous system to maintain blood flow to vital organs. This triggers peripheral vasoconstriction, which elevates the diastolic blood pressure and results in a narrowing pulse pressure. Additionally, mild restlessness is one of the earliest signs of mildly decreased cerebral perfusion.

Adım Adım Çözüm

1
Analyze the clinical scenario and the specific complication.
The client has acute pancreatitis and is at high risk for hypovolemic shock due to third-spacing of fluids. The question requires identifying the earliest sign.
Understanding the timeline of shock progression is critical for timely intervention.
2
Evaluate the physiological response during the initial (compensatory) stage of shock.
The body activates the sympathetic nervous system to maintain cardiac output, causing peripheral vasoconstriction (which narrows the pulse pressure), mild tachycardia, and early neurological changes (restlessness/anxiety) due to slight decreases in cerebral perfusion.
Compensatory mechanisms attempt to mask absolute fluid loss, meaning overt hypotension will not be present initially.
3
Differentiate between early signs and the distractors provided.
Systolic hypotension and metabolic acidosis are progressive, late signs of shock. Diminished breath sounds indicate a localized pulmonary issue, not systemic shock.
Selecting a late sign indicates a failure to recognize the subtle, earlier opportunities for life-saving fluid resuscitation.

Anahtar Kavram

Early vs. Late Indicators of Hypovolemic Shock
Soru 1948Soru →

A nurse is changing the intravenous (IV) tubing for a client receiving continuous total parenteral nutrition (TPN) via a central venous catheter. The catheter hub is accidentally left unclamped during the tubing exchange. The client suddenly gasps, reports sharp chest pain, and becomes severely dyspneic, pale, and tachycardic. Which of the following is the priority nursing action?

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Cevap: Clamp the catheter and place the client in the left lateral Trendelenburg position.

Cevap

The priority action is to clamp the catheter and position the client in the left lateral Trendelenburg position.
The client's sudden onset of sharp chest pain, dyspnea, and tachycardia immediately following exposure of an unclamped central line hub strongly indicates an air embolism. The immediate priority is to stop further air entry by clamping the catheter and to place the client in the left lateral Trendelenburg position (on their left side with the head lower than the feet). This specific position utilizes gravity to trap the air bubble in the apex of the right atrium or right ventricle, preventing it from migrating into the pulmonary circulation and causing a catastrophic right ventricular outflow obstruction.

Adım Adım Çözüm

1
Recognize the clinical presentation of a complication.
The sudden onset of dyspnea, chest pain, and tachycardia after an open central venous catheter hub indicates a suspected air embolism.
Air entering the central venous system travels to the right side of the heart and can block blood flow to the pulmonary artery, leading to rapid cardiovascular collapse.
2
Determine the immediate life-saving intervention.
Clamp the catheter to stop further air entry and reposition the client.
Immediate mechanical prevention of further air entry is required before any other assessments or pharmacological treatments.
3
Select the correct therapeutic position.
Place the client in the left lateral Trendelenburg position.
This specific position uses gravity to trap the air bubble in the apex of the right atrium, preventing it from migrating into the pulmonary artery and allowing time for it to gradually absorb or be aspirated.

Anahtar Kavram

Air Embolism Management in Central Venous Catheters
Soru 1949Soru →

A clinical team is monitoring a client who has been undergoing continuous nasogastric decompression for three days due to a severe small bowel obstruction. The nurse should identify which of the following findings as evidence that the client is developing metabolic alkalosis? (Select all that apply)

Geçerli olan tümünü seçin

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Cevap: Shallow respirations at a rate of 10 breaths per minute; Involuntary facial muscle twitching when the facial nerve is tapped; Arterial blood gas results showing a pH of 7.48 and a bicarbonate level of 32 mEq/L

Cevap

The correct findings are shallow respirations at a rate of 10 breaths per minute, involuntary facial muscle twitching when the facial nerve is tapped, and arterial blood gas results showing a pH of 7.48 and a bicarbonate level of 32 mEq/L.
The correct options represent the primary laboratory criteria for metabolic alkalosis (elevated pH and elevated bicarbonate), the respiratory system's compensatory mechanism (hypoventilation to retain carbon dioxide), and the secondary clinical manifestation of decreased ionized calcium (positive Chvostek's sign) that reliably occurs in alkalemic states due to increased calcium binding to albumin.

Adım Adım Çözüm

1
Analyze the physiological impact of the prescribed therapy.
Continuous nasogastric decompression removes hydrochloric acid (HCl) from the stomach.
Loss of gastric acid directly predisposes the client to a primary increase in serum bicarbonate, resulting in metabolic alkalosis.
2
Identify the direct laboratory evidence for this specific imbalance.
Metabolic alkalosis is confirmed by an elevated pH (greater than 7.45) and an elevated bicarbonate level (HCO3- greater than 28 mEq/L).
These ABG values confirm the primary metabolic disturbance.
3
Determine the expected physiological compensatory mechanism.
The body compensates by hypoventilating (shallow, slow breathing).
Hypoventilation retains carbon dioxide (an acid) to help lower the elevated blood pH back toward a normal range.
4
Identify secondary electrolyte shifts and their associated clinical manifestations.
The client may exhibit a positive Chvostek's sign (facial muscle twitching).
Alkalosis decreases the proportion of ionized calcium in the blood by increasing calcium binding to albumin, leading to neuromuscular excitability.

Anahtar Kavram

Physiological adaptation to metabolic alkalosis involves respiratory compensation (hypoventilation) and secondary electrolyte shifts (decreased ionized calcium).
Soru 1950Soru →

While a nurse is administering a prescribed medication via direct intravenous injection, the client suddenly reports a pounding headache, a tight sensation in the chest, and facial warmth. The nurse notes that the client's face is flushed and the cardiac monitor displays an irregular heart rate. Based on these immediate clinical manifestations, which intravenous therapy complication is the client most likely experiencing?

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Cevap: Speed shock

Cevap

The correct answer is speed shock, which occurs due to the rapid intravenous administration of a medication.
The correct answer is speed shock, a systemic reaction that occurs when an intravenous medication is administered too rapidly. This rapid introduction causes the medication to reach toxic proportions in the systemic circulation immediately. Classic signs and symptoms include a flushed face, pounding headache, tight feeling in the chest, irregular pulse, hypotension, and potential cardiac arrest. Recognizing these signs is critical so the nurse can immediately stop the administration.

Adım Adım Çözüm

1
Analyze the client's presenting clinical manifestations during the direct intravenous injection.
The client is experiencing a sudden pounding headache, chest tightness, facial flushing, and an irregular heart rate.
Identifying the precise onset and nature of symptoms is essential to differentiate between various intravenous therapy complications.
2
Correlate the symptom onset with known systemic intravenous complications.
The symptoms align specifically with a toxic reaction caused by a medication reaching the systemic circulation too rapidly.
Rapid administration of IV medications can cause plasma levels to rise instantly, leading to a specific set of manifestations known as speed shock.
3
Differentiate the identified complication from other potential systemic reactions.
The absence of hives, wheezing, or stridor rules out anaphylaxis. The absence of cyanosis and sudden severe respiratory distress rules out an air embolism.
Ruling out other critical emergencies ensures the correct complication is identified and the appropriate targeted intervention can be initiated.

Anahtar Kavram

Pharmacological Therapies: Recognizing Complications of Intravenous Push Administration
Soru 1951Soru →

A registered nurse is preparing to reconstitute a powdered parenteral medication using a multidose vial of sterile water for injection. Arrange the following procedural steps in the correct chronological order from first to last.

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Cevap

The correct sequence for medication reconstitution is: cleanse the vial stoppers, draw air into the syringe, inject air into the diluent vial and withdraw the fluid, inject the diluent into the powder vial, and finally, gently roll the vial to dissolve the medication.
Safe and effective medication reconstitution requires a standardized aseptic sequence. First, the nurse must ensure asepsis by cleansing the stoppers. Next, drawing up and injecting an equivalent volume of air into the diluent vial prevents a vacuum, facilitating the smooth withdrawal of the sterile water. Once the proper amount of diluent is withdrawn, it is injected into the powdered medication vial. Finally, rolling the vial gently ensures the medication dissolves evenly without creating froth or bubbles, allowing for a precise and accurate dose to be drawn up subsequently.

Adım Adım Çözüm

1
Cleanse the rubber stoppers of both the powdered medication and diluent vials with an antiseptic swab.
The access surfaces of both vials are sanitized.
Maintains asepsis prior to piercing the stoppers with a sterile needle, preventing contamination.
2
Draw a volume of air into the syringe equal to the prescribed amount of diluent required.
The syringe contains the necessary volume of air.
Prepares the syringe to pressurize the diluent vial and prevents a vacuum effect during fluid withdrawal.
3
Inject the air into the diluent vial and withdraw the specified volume of sterile water.
The exact prescribed volume of liquid diluent is obtained in the syringe.
The injected air equalizes internal vial pressure, making fluid withdrawal smooth and measuring accurate.
4
Inject the withdrawn sterile water into the vial containing the powdered medication.
The diluent mixes with the dry powder.
Introduces the liquid base required to reconstitute the solid medication into an administrable solution.
5
Gently roll the medication vial between the palms until the powder is completely dissolved.
The medication is fully dissolved into a clear, uniform solution ready to be drawn up for administration.
Rolling prevents the formation of bubbles or froth that vigorous shaking might cause, which could lead to inaccurate dosing.

Anahtar Kavram

Medication Reconstitution Procedure
Soru 1952Soru →

A nurse is assessing a client who was admitted to the medical-surgical unit with severe hematemesis and melena. The nurse suspects the client is entering the early compensatory stage of hypovolemic shock. Which of the following assessment findings support this conclusion? Select all that apply.

Geçerli olan tümünü seçin

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Cevap: Restlessness and mild apprehension; Heart rate of 118 beats/min; Pulse pressure decreasing from 45 mm Hg to 25 mm Hg

Cevap

The assessment findings that support the early compensatory stage of hypovolemic shock are restlessness and mild apprehension, a heart rate of 118 beats/min, and a pulse pressure decreasing from 45 mm Hg to 25 mm Hg.
In the early compensatory stage of hypovolemic shock, the body's baroreceptors detect a drop in intravascular volume and stimulate the sympathetic nervous system. This results in an increased heart rate (tachycardia) to maintain cardiac output, and peripheral vasoconstriction which raises diastolic blood pressure, leading to a narrowed pulse pressure. Additionally, subtle decreases in cerebral perfusion cause early neurological changes such as restlessness, anxiety, and mild apprehension.

Adım Adım Çözüm

1
Analyze the client's clinical presentation and the specific stage of shock being assessed.
The client has severe gastrointestinal bleeding, placing them at risk for hypovolemic shock. The question specifically asks for signs of the 'early compensatory stage'.
Different stages of shock present with distinct physiological markers based on the body's compensatory mechanisms.
2
Evaluate the options for early compensatory mechanisms.
The sympathetic nervous system activates to maintain perfusion, leading to tachycardia, peripheral vasoconstriction (narrowing pulse pressure), and early neurological changes (restlessness) due to subtle cerebral hypoxia.
These are the body's first attempts to preserve cardiac output and blood pressure before decompensation occurs.
3
Identify findings that represent later stages or incorrect physiological interpretations.
Profound hypotension is a sign of progressive shock (failed compensation). A high PaCO2 is incorrect because early shock causes hyperventilation and respiratory alkalosis (low PaCO2).
Distinguishing between compensatory and progressive shock is critical for timely nursing intervention.

Anahtar Kavram

During the early compensatory stage of shock, the sympathetic nervous system activates to maintain cardiac output and blood pressure. Key indicators include tachycardia, narrowing pulse pressure, restlessness, and respiratory alkalosis, whereas profound hypotension occurs in later, progressive stages.
Soru 1953Soru →

During an ongoing transfusion of packed red blood cells (PRBCs) for a client with severe anemia, the client suddenly develops bilateral lung crackles, severe shortness of breath, and jugular venous distention. A rapid response is called, and the attending physician orders a stat dose of intravenous furosemide. The client currently has only one single-lumen peripheral intravenous catheter in place. What is the priority nursing action to safely administer this prescribed therapy?

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Cevap: Establish a second peripheral vascular access site to administer the diuretic.

Cevap

The nurse must establish a new, secondary peripheral intravenous access site to safely administer the diuretic.
Blood products are highly sensitive and incompatible with almost all intravenous medications. Mixing furosemide with packed red blood cells can cause immediate hemolysis (destruction of red blood cells). Because the client is experiencing an acute, life-threatening complication (pulmonary edema secondary to fluid overload), the medication must be given immediately. The only safe and effective way to adhere to both the urgency of the situation and strict compatibility protocols is to establish a new vascular access site.

Adım Adım Çözüm

1
Assess the client's new onset of symptoms (crackles, dyspnea, jugular venous distention).
Identifies that the client is experiencing acute fluid volume overload, a life-threatening emergency requiring rapid pharmacological intervention.
Airway and breathing are the highest physiological priorities.
2
Evaluate the current intravenous access options.
Recognizes that the only existing access is a single-lumen catheter actively infusing packed red blood cells.
Safe administration protocols dictate that no medications can be added to or pushed through a line actively running blood products.
3
Initiate a second peripheral IV line.
Allows for the immediate delivery of the ordered furosemide while maintaining the integrity of the blood transfusion.
Resolves the clinical emergency (pulmonary edema) without violating critical IV compatibility rules.

Anahtar Kavram

Blood product compatibility and emergency medication administration principles.
Soru 1954Soru →

A nurse is caring for a client who sustained a closed transverse femur fracture 36 hours ago. The client suddenly becomes highly agitated, reports a feeling of impending doom, and is experiencing severe dyspnea. The nurse notes the appearance of a petechial rash over the client's anterior chest and neck. An arterial blood gas (ABG) analysis is obtained while the client is breathing room air, revealing the following results: pH 7.48, PaCO2PaCO_2 29 mm Hg, PaO2PaO_2 54 mm Hg, and HCO3−HCO_3^- 23 mEq/L. What is the priority nursing action?

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Cevap: Apply high-flow oxygen via a non-rebreather mask.

Cevap

The priority action is to apply high-flow oxygen via a non-rebreather mask to address the severe, life-threatening hypoxemia caused by Fat Embolism Syndrome.
The correct answer directly addresses the client's most critical physiological deficit: severe hypoxemia resulting from a fat embolism. Recognizing the triad of FES (hypoxemia, neurological abnormalities, and petechiae) and understanding that the ABG reflects compensatory hyperventilation points to oxygen administration as the undisputed first priority.

Adım Adım Çözüm

1
Analyze the client's clinical presentation.
The combination of a recent long bone fracture, sudden agitation, dyspnea, and a petechial rash forms the classic triad of signs for Fat Embolism Syndrome (FES).
Recognizing the underlying syndrome is essential to prioritize the correct physiological need and anticipate complications.
2
Interpret the arterial blood gas (ABG) values.
The results show an uncompensated respiratory alkalosis (pH > 7.45, low PaCO2PaCO_2) combined with profound hypoxemia (PaO2PaO_2 < 60 mm Hg).
The alkalosis is a compensatory hyperventilation response driven by the severe lack of oxygen.
3
Determine the most critical priority action.
The immediate application of high-flow oxygen is required to treat the life-threatening hypoxemia.
Addressing airway and breathing deficits takes highest precedence, and oxygenation is the primary supportive treatment for FES.

Anahtar Kavram

Fat Embolism Syndrome (FES) Recognition and Acute Oxygenation
Soru 1955Soru →

Following a severe myocardial infarction, a client requires pharmacological blood pressure support. The client is currently receiving a continuous dopamine infusion at 5 mcg/kg/min through their only patent peripheral venous access site, maintaining a mean arterial pressure (MAP) of 68 mm Hg. The healthcare provider prescribes a scheduled dose of an intermittent intravenous antibiotic. Upon consulting the facility's parenteral drug reference, the nurse confirms the antibiotic is completely incompatible with dopamine. What is the most appropriate intervention for this situation?

Cevabı ve açıklamayı göster

Cevap: Insert an additional venous catheter to deliver the scheduled antibiotic dose.

Cevap

The most appropriate intervention is to insert an additional venous catheter to deliver the scheduled antibiotic dose.
Dopamine is a short-acting vasoactive medication critical for maintaining the client's blood pressure and cardiac output. It must infuse continuously without interruption to prevent acute hemodynamic collapse. Because the newly prescribed antibiotic is incompatible with dopamine, it cannot be administered through the same intravenous line. Therefore, initiating a separate access site is the only safe method to ensure both medications are delivered effectively.

Adım Adım Çözüm

1
Identify the nature of the primary continuous infusion.
The client is receiving dopamine, a critical vasoactive medication with a very short half-life used to maintain blood pressure.
To determine if the primary infusion can be safely interrupted for secondary drug administration.
2
Analyze the drug compatibility constraints.
The new antibiotic is completely incompatible with dopamine at the Y-site.
To verify whether the two medications can share the same intravenous pathway.
3
Formulate a safe administration plan.
A separate intravenous site must be initiated because the dopamine cannot be stopped and the drugs cannot mix.
To maintain the client's hemodynamic stability while safely delivering the prescribed antibiotic therapy.

Anahtar Kavram

Intravenous Medication Compatibility and Vasoactive Infusion Safety
Soru 1956Soru →

A nurse is caring for a client with a spinal cord injury at the T4 level. The client suddenly reports a severe, pounding headache and becomes profusely diaphoretic above the level of injury. The client's blood pressure is 210/110 mmHg and heart rate is 52 bpm. In what order should the nurse perform the following actions? Arrange the actions in chronological sequence from first to last.

Öğeleri doğru sıraya koymak için sürükleyin

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Cevap

The correct sequence is: elevate the head of the bed to 90 degrees, assess for and relieve the underlying noxious stimulus, administer the prescribed short-acting antihypertensive medication, and document the occurrence, interventions, and the client's response.
Autonomic dysreflexia is a medical emergency characterized by severe hypertension and bradycardia in clients with spinal cord injuries at or above the T6 level. The immediate priority is to lower the blood pressure by placing the client in a high Fowler's position (90 degrees) to induce orthostasis. Next, the nurse must identify and remove the noxious stimulus, such as bladder distention or a kinked catheter, which is the underlying cause of the sympathetic surge. If these conservative measures do not resolve the severe hypertension, a prescribed short-acting antihypertensive medication is administered. Finally, the nurse documents the event once the client's condition is stable.

Adım Adım Çözüm

1
Identify the clinical presentation as autonomic dysreflexia.
The client's severe headache, severe hypertension, bradycardia, and diaphoresis above a T4 injury indicate autonomic dysreflexia.
Recognizing the life-threatening nature of this condition dictates the urgency and appropriate sequence of nursing interventions.
2
Determine the most immediate action to mitigate the greatest risk.
Elevating the head of the bed to 90 degrees is the first priority.
This utilizes gravity to pool blood in the lower extremities, which rapidly decreases blood pressure and reduces the immediate risk of an intracranial hemorrhage or stroke.
3
Identify subsequent actions to resolve the root cause and provide further treatment.
Assess for and remove noxious stimuli, followed by administering medications if needed, and finally documenting the event.
Removing the stimulus (e.g., unkinking a catheter) breaks the sympathetic reflex arc. Antihypertensive medications are utilized if the blood pressure remains elevated despite conservative measures. Documentation is completed after the client is stable.

Anahtar Kavram

Management of autonomic dysreflexia involves immediate positional changes to lower blood pressure, followed by identification and removal of the triggering stimulus.
Soru 1957Soru →

A nurse is preparing to administer a prescribed intravenous (IV) push medication through a peripheral IV line. The current continuous IV fluid infusing is incompatible with the prescribed IV push medication. In what order should the nurse perform the following actions to safely administer the medication? Arrange the actions in the correct sequence.

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Cevap

Stop the infusion/clamp tubing, scrub the port, flush with saline, administer the medication, flush with saline at the medication rate, and restart the infusion.
When administering an IV push medication through a line with an incompatible continuous infusion, the nurse must first stop the infusion and clamp the line to prevent mixing. The lowest port is used and scrubbed to maintain asepsis. A preliminary saline flush clears the incompatible fluid from the tubing. The medication is then administered at the prescribed rate, followed by a post-administration saline flush. Crucially, the post-flush must be pushed at the same rate as the medication to avoid rapidly infusing the medication still residing in the tubing. Finally, the primary infusion is safely restarted.

Adım Adım Çözüm

1
Stop the continuous IV infusion and clamp the primary tubing.
The flow of the incompatible fluid is halted.
Prevents the mixing of the incompatible medication and the continuous IV fluid, which could cause precipitation.
2
Scrub the injection port closest to the client with an antiseptic swab.
The access point is sanitized.
Maintains asepsis and prevents line-associated bloodstream infections.
3
Flush the IV line with 10 mL of 0.9% sodium chloride.
The line is cleared of the incompatible continuous IV fluid.
Creates a physical fluid barrier between the incompatible solutions.
4
Administer the prescribed IV push medication over the recommended duration.
The medication is delivered safely into the bloodstream.
Administering at the correct rate prevents adverse physiological reactions like speed shock.
5
Flush the IV line again with 10 mL of 0.9% sodium chloride at the same rate as the medication.
Residual medication is safely cleared from the tubing.
Ensures the full dose reaches the client. Flushing at the medication's rate prevents pushing residual medication in the tubing too rapidly.
6
Unclamp the primary tubing and resume the continuous IV fluid infusion.
The continuous fluid therapy is restored.
Maintains the prescribed fluid or medication regimen after the IV push medication is successfully given.

Anahtar Kavram

Safe administration of an IV push medication through a line with an incompatible continuous infusion requires stopping the infusion and using the SAS (Saline, Administer, Saline) method at the lowest port.
Soru 1958Soru →

A nurse is evaluating a client who is 4 hours postoperative following a partial nephrectomy. Which assessment finding provides the earliest indication that the client is developing hypovolemic shock?

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Cevap: A steady increase in resting heart rate accompanied by a narrowing pulse pressure

Cevap

The earliest indicator of developing hypovolemic shock is a steady increase in resting heart rate accompanied by a narrowing pulse pressure.
In the early stages of hypovolemic shock, the body's physiological adaptation involves sympathetic nervous system activation. This increases the heart rate to maintain cardiac output and causes peripheral vasoconstriction, which elevates the diastolic blood pressure, thereby narrowing the pulse pressure. These subtle changes occur well before the systolic blood pressure drops.

Adım Adım Çözüm

1
Analyze the client's postoperative status and risk for hemorrhage following a highly vascular procedure like a partial nephrectomy.
Identify that the client is at high risk for internal bleeding and subsequent hypovolemic shock.
Recognizing the primary postoperative complication dictates which assessment findings to prioritize.
2
Evaluate the physiological sequence of shock to distinguish between early compensatory signs and late decompensated signs.
Determine that the sympathetic nervous system triggers tachycardia and peripheral vasoconstriction first, which narrows the pulse pressure before the systolic pressure actually falls.
Understanding the timeline of physiological adaptation allows the nurse to intervene before irreversible organ damage occurs.
3
Compare the available options against the early compensatory mechanisms of shock.
Select the option describing tachycardia and a narrowing pulse pressure as the earliest reliable indicator.
This directly matches the body's initial attempt to maintain perfusion in the face of declining intravascular volume.

Anahtar Kavram

Early recognition of hypovolemic shock relies on identifying compensatory mechanisms, specifically tachycardia and narrowing pulse pressure, prior to the onset of frank hypotension.
Soru 1959Soru →

An adult client is receiving care in the medical-surgical unit for a pulmonary embolism and a newly diagnosed lower respiratory tract infection. The client has a continuous intravenous (IV) infusion of heparin running through a dedicated peripheral IV catheter. The healthcare provider urgently prescribes a dose of IV levofloxacin. Upon reviewing the hospital's parenteral compatibility database, the nurse determines that heparin and levofloxacin are physically incompatible. Which of the following is the most appropriate nursing action?

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Cevap: Insert a second peripheral intravenous catheter to administer the levofloxacin.

Cevap

The most appropriate action is to insert a second peripheral intravenous catheter to administer the levofloxacin.
Establishing a second peripheral intravenous access is the correct clinical action. Heparin has a short half-life and is infused continuously to maintain therapeutic anticoagulation to prevent the pulmonary embolism from worsening. Levofloxacin is an IV piggyback that typically takes 60 to 90 minutes to administer. Because the drugs are incompatible, they cannot share a line. Pausing the heparin for over an hour would cause the client's coagulation factors to return to baseline, severely increasing the risk of clot propagation. Delaying the antibiotic is also inappropriate due to the acute respiratory infection. Therefore, a new IV line is required to deliver both treatments safely.

Adım Adım Çözüm

1
Analyze the client's current therapies and the new prescription.
The client requires both a continuous heparin infusion for a pulmonary embolism and an urgent antibiotic (levofloxacin) for a respiratory infection.
Identifying all required treatments is the first step in care coordination and safety planning.
2
Evaluate the medication administration constraints and pharmacology.
The medications are physically incompatible, meaning they cannot mix in the same IV tubing. Additionally, heparin has a very short half-life and must remain continuous to maintain therapeutic anticoagulation.
Understanding physical compatibility and pharmacokinetics prevents adverse events and guides safe administration practices.
3
Determine the safest administrative intervention.
Because they cannot be mixed and neither can be safely delayed or paused, establishing a new, separate IV access point is the only clinical option.
Providing a dedicated line ensures both critical medications infuse safely and continuously.

Anahtar Kavram

When a client requires an extended infusion of a medication that is physically incompatible with an ongoing critical continuous infusion (such as an anticoagulant or vasopressor), the nurse must establish a second intravenous access site rather than mixing the drugs, pausing the critical drip, or delaying care.
Soru 1960Soru →

A nurse is caring for a client who is receiving a unit of packed red blood cells (PRBCs). Fifteen minutes after the transfusion begins, the client reports severe lower back pain, chills, and shortness of breath. Arrange the following nursing actions in the priority order they should be performed.

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Cevap

The correct sequence is to first stop the transfusion, then replace the IV tubing to infuse normal saline, assess the client's vital signs, notify the healthcare provider and blood bank, and finally return the blood product to the lab.
In a suspected transfusion reaction, the priority sequence follows the principle of halting the trigger, maintaining physiological support, assessing the damage, and then communicating findings. Stopping the blood is always the first action. Maintaining IV access with new tubing prevents infusing residual blood while keeping a line open for emergency drugs. Assessing the client provides the necessary clinical picture before notifying the provider. Finally, returning the materials allows the laboratory to investigate the cause.

Adım Adım Çözüm

1
Stop the transfusion immediately.
Prevents further administration of incompatible blood.
Halting the offending agent is the primary physiological adaptation intervention in any hypersensitivity or hemolytic reaction.
2
Replace the IV tubing and infuse 0.9% sodium chloride.
Maintains IV access without pushing more blood into the client.
IV access is critical for resuscitation. Using the existing tubing would inappropriately flush incompatible red blood cells into the client's circulation.
3
Assess the client's vital signs and respiratory status.
Provides current physiological baseline data.
Accurate clinical data is necessary to guide medical treatment and properly inform the healthcare provider of the client's status.
4
Notify the healthcare provider and the blood bank.
Initiates collaborative medical management.
The provider will prescribe emergency medications (e.g., epinephrine, diuretics, fluids), and the blood bank must begin an investigation into the reaction.
5
Return the blood bag, tags, and tubing to the blood bank.
Allows for laboratory analysis of the reaction.
This is standard post-reaction protocol to determine the exact cause of the hemolytic or allergic event.

Anahtar Kavram

Acute Hemolytic Transfusion Reaction Management
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Physiological Integrity Alıştırma Soruları — NCLEX-RN — Sayfa 98 | Examkin