Nursing Elites

1. A client with deep vein thrombosis (DVT) is receiving heparin therapy. Which laboratory test should the nurse monitor to assess the effectiveness of the therapy?

• A. Prothrombin time (PT)
• B. Platelet count
• C. Activated partial thromboplastin time (aPTT)
• D. International normalized ratio (INR)

Correct answer: C

Rationale: Activated partial thromboplastin time (aPTT) is the appropriate laboratory test to monitor the effectiveness of heparin therapy. Heparin works by prolonging the clotting time, which is reflected in the aPTT results. Monitoring aPTT helps ensure the patient is within the therapeutic range and not at risk of bleeding or clotting complications. Prothrombin time (PT) (Choice A) primarily measures the extrinsic pathway of coagulation and is used to monitor warfarin therapy, not heparin. Platelet count (Choice B) assesses the number of platelets present in the blood and is not specific to monitoring heparin therapy. International normalized ratio (INR) (Choice D) is used to monitor warfarin therapy, not heparin.

2. A client with a history of deep vein thrombosis (DVT) is receiving warfarin (Coumadin). Which laboratory value indicates a therapeutic effect of the medication?

• A. INR of 2.5.
• B. PTT of 45 seconds.
• C. Hemoglobin of 12 g/dL.
• D. Platelet count of 150,000/mm³.

Correct answer: A

Rationale: An INR (International Normalized Ratio) of 2.5 indicates a therapeutic level for clients receiving warfarin (Coumadin) to prevent thromboembolism. It is essential to monitor INR levels regularly when on warfarin therapy to ensure that the blood's ability to clot is within the desired range to prevent both clotting and excessive bleeding.

3. A healthcare professional is assessing a client with severe dehydration. Which finding indicates a need for immediate intervention?

• A. Heart rate of 110 beats per minute.
• B. Blood pressure of 90/60 mm Hg.
• C. Urine output of 20 ml/hour.
• D. Dry mucous membranes.

Correct answer: C

Rationale: A urine output of 20 ml/hour indicates severe dehydration and impaired renal function. This finding suggests a critical state where the kidneys are conserving water, leading to reduced urine output. Immediate intervention is required to restore fluid balance and prevent further complications associated with severe dehydration. Choice A, a heart rate of 110 beats per minute, may indicate dehydration but is not as severe as the critically low urine output. Choice B, a blood pressure of 90/60 mm Hg, can be seen in dehydration but is not as concerning as the extremely low urine output. Choice D, dry mucous membranes, is a common sign of dehydration but does not require immediate intervention compared to the severely reduced urine output.

4. A client with newly diagnosed diabetes mellitus is receiving teaching on foot care. Which instruction should the nurse include?

• A. Walk barefoot whenever possible to toughen your feet.
• B. Soak your feet in hot water daily to improve circulation.
• C. Trim your toenails straight across to prevent ingrown toenails.
• D. Use a heating pad to keep your feet warm.

Correct answer: C

Rationale: Correctly trimming toenails straight across is crucial in preventing ingrown toenails and potential infections in individuals with diabetes. Ingrown toenails can lead to complications, so it is essential for diabetic clients to practice proper nail care to avoid these issues. Choices A, B, and D are incorrect. Walking barefoot can increase the risk of foot injuries, soaking feet in hot water can cause burns or skin damage, and using a heating pad can lead to burns or injuries due to decreased sensation in the feet, which is common in diabetes.

5. A 62-year-old male client with a history of coronary artery disease complains that his heart is 'racing' and he often feels dizzy. His blood pressure is 110/60, and he uses portable oxygen at 2 liters per nasal cannula. Based on the rhythm shown, which prescription should the nurse administer?

• A. Give magnesium via secondary infusion.
• B. Initiate IV heparin solution as per protocol.
• C. Administer IV adenosine (Adenocard).
• D. Prepare for synchronized cardioversion.

Correct answer: C

Rationale: Administering IV adenosine is the appropriate intervention for a client with symptomatic tachycardia to restore normal sinus rhythm. Adenosine is a medication used to treat supraventricular tachycardia (SVT) by interrupting the reentry pathways through the AV node and restoring normal sinus rhythm. It is a rapid-acting medication given as a rapid IV push followed by a saline flush. The dose is typically administered in a healthcare setting where cardiac monitoring is available due to its potential to cause transient asystole.

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