Nokea
A client with a history of deep vein thrombosis (DVT) is prescribed warfarin. Which laboratory value should the nurse monitor to assess the therapeutic effect of this medication?
- A. Platelet count
- B. Prothrombin time (PT)
- C. White blood cell count
- D. Hemoglobin level
Correct Answer: B
Rationale: Prothrombin time (PT) is the correct laboratory value to monitor to assess the therapeutic effect of warfarin. Warfarin works by inhibiting clotting factors, and PT measures the time it takes for blood to clot. Monitoring PT helps ensure that the medication is working effectively to prevent clot formation without causing excessive bleeding. Platelet count (Choice A) is not specific to warfarin therapy and assesses the number of platelets in the blood. White blood cell count (Choice C) and hemoglobin level (Choice D) are not directly related to monitoring the therapeutic effect of warfarin.
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A client with Alzheimer's disease is exhibiting signs of agitation and aggression. What is the nurse's priority intervention?
- A. Reassure the client and provide emotional support.
- B. Redirect the client to a quiet activity.
- C. Administer a PRN dose of lorazepam.
- D. Apply soft restraints as needed to prevent harm.
Correct Answer: B
Rationale: The correct answer is to redirect the client to a quiet activity. This intervention helps reduce agitation and aggression in clients with Alzheimer's disease by providing a distraction and promoting a calming environment. Reassuring the client and providing emotional support (Choice A) can be beneficial but is not the priority in this situation. Administering a PRN dose of lorazepam (Choice C) should not be the first intervention due to the risk of adverse effects and should only be considered if other non-pharmacological interventions are ineffective. Applying restraints (Choice D) should be avoided unless absolutely necessary for the client's safety as it can lead to further distress and is not the initial priority intervention.
A client with myasthenia gravis (MG) is receiving immunosuppressive therapy. Recent lab tests show decreased serum magnesium. What nursing action is most important?
- A. Observe rhythm on telemetry monitor.
- B. Check for visual difficulties.
- C. Assess for hip and hand joint pain.
- D. Note the most recent hemoglobin level.
Correct Answer: A
Rationale: Magnesium plays a crucial role in maintaining normal cardiac rhythms, particularly in patients with cardiac conditions. Abnormal levels can lead to arrhythmias, which is why continuous monitoring of the heart's electrical activity is important. Magnesium's effect on neuromuscular and cardiac function makes it essential to monitor its levels, and any discrepancies can impact treatment decisions. Checking for visual difficulties (choice B) may be important in MG but is not the priority in the context of decreased serum magnesium. Assessing for hip and hand joint pain (choice C) is not directly related to the issue of decreased serum magnesium. Noting the most recent hemoglobin level (choice D) is not the priority in this situation compared to monitoring the cardiac rhythm due to low magnesium levels.
A nurse assesses a young adult in the emergency room following a motor vehicle accident. Which of the following neurological signs is of most concern?
- A. Flaccid paralysis
- B. Pupils fixed and dilated
- C. Diminished spinal reflexes
- D. Reduced sensory responses
Correct Answer: B
Rationale: Fixed, dilated pupils are a sign of increased intracranial pressure or brain injury, indicating a potentially serious neurological condition. Flaccid paralysis, although concerning, may not always indicate immediate life-threatening issues. Diminished spinal reflexes and reduced sensory responses are important neurological assessments but are not as acutely concerning as fixed, dilated pupils in this context.
A male client with HIV on antiretroviral therapy complains of constant hunger and thirst while losing weight. What action should the nurse implement?
- A. Check the client's glucose level with a glucometer.
- B. Measure the client's weight accurately.
- C. Reassure the client that weight will stabilize as viral load decreases.
- D. Increase the dose of saquinavir.
Correct Answer: A
Rationale: The correct action for the nurse to implement is to check the client's glucose level with a glucometer. Constant hunger and thirst along with weight loss can be indicative of hyperglycemia, a possible side effect of saquinavir. Monitoring the client's glucose levels is crucial in this situation. Measuring the client's weight accurately (Choice B) is important for monitoring purposes but does not address the immediate concern of hunger, thirst, and weight loss. Reassuring the client that weight will stabilize as viral load decreases (Choice C) is not appropriate in this scenario as the symptoms described need immediate attention. Increasing the dose of saquinavir (Choice D) without assessing the client's glucose level can worsen the hyperglycemia.
A client with deep vein thrombosis (DVT) is prescribed heparin therapy. What laboratory value should the nurse monitor?
- A. Monitor the client's liver function tests.
- B. Monitor the client's prothrombin time (PT).
- C. Monitor the client's partial thromboplastin time (PTT).
- D. Monitor the client's red blood cell count.
Correct Answer: C
Rationale: The correct answer is C: Monitor the client's partial thromboplastin time (PTT). During heparin therapy for DVT, it is essential to monitor the PTT to assess the effectiveness of the medication in preventing clot formation. Monitoring the PTT helps ensure that the client is within the therapeutic range for anticoagulation. Choices A, B, and D are incorrect because liver function tests, prothrombin time (PT), and red blood cell count are not specifically monitored to assess the effectiveness of heparin therapy in preventing clot formation.