Nursing Elites

1. A client is receiving heparin therapy. Which of the following laboratory tests should be monitored to evaluate the effectiveness of the therapy?

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

Correct answer: C

Rationale: Activated partial thromboplastin time (aPTT) is the most appropriate laboratory test to monitor the effectiveness of heparin therapy. Heparin works on the intrinsic pathway of the coagulation cascade, and monitoring aPTT helps assess its anticoagulant effect. Therapeutic levels of aPTT for clients on heparin therapy are typically 1.5 to 2.5 times the control value. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor warfarin therapy, which acts on the extrinsic pathway of the coagulation cascade. Complete blood count (CBC) is not specific for monitoring the effectiveness of heparin therapy.

2. The client with a history of coronary artery disease (CAD) is scheduled for a stress test. What instruction should the nurse provide to the client before the test?

• A. Continue taking your usual dose of beta-blockers
• B. Refrain from eating or drinking anything for 4 hours before the test
• C. Wear loose, comfortable clothing and walking shoes
• D. Avoid any physical activity for 24 hours before the test

Correct answer: C

Rationale: Before a stress test, the nurse should instruct the client to wear loose, comfortable clothing and walking shoes. This is essential as the stress test involves physical exercise, and the client should be ready for the activity involved. Continuing beta-blockers should be based on healthcare provider's instructions; adjustments may be needed. Fasting before the test is usually not necessary. Avoiding physical activity for 24 hours before the test is not recommended as it may affect the accuracy of the test results by not providing a true reflection of the client's exercise capacity.

3. The client is scheduled to undergo a treadmill stress test. Which instruction should the client be reinforced with?

• A. Eat a light meal before the test.
• B. Wear comfortable shoes and clothing.
• C. Avoid all physical activity the morning of the test.
• D. Take prescribed medications right before the test.

Correct answer: B

Rationale: The correct answer is B: 'Wear comfortable shoes and clothing.' Wearing comfortable shoes and clothing is crucial for the client undergoing a treadmill stress test to ensure they can complete the test without discomfort. The right attire will help the client move freely and reduce the risk of any hindrance during the test, which requires physical activity. Choices A, C, and D are incorrect. A light meal before the test may be recommended, but it's not as crucial as wearing suitable attire. Avoiding physical activity the morning of the test is not necessary as the test requires physical activity. Taking prescribed medications right before the test instructions should be followed as per the healthcare provider's advice and not as a general rule for all clients undergoing the test.

4. The nurse is caring for a client with heart failure who is receiving digoxin (Lanoxin). Which sign of digoxin toxicity should the nurse monitor for?

• A. Hypertension
• B. Bradycardia
• C. Hyperglycemia
• D. Insomnia

Correct answer: B

Rationale: Corrected Rationale: Bradycardia is a common sign of digoxin toxicity. Digoxin can cause bradycardia due to its effects on the heart's electrical conduction system. Monitoring for a slow heart rate is crucial as it indicates potential toxicity. Hypertension, hyperglycemia, and insomnia are not typically associated with digoxin toxicity. Hypertension is more commonly seen in other conditions, hyperglycemia is not a typical sign of digoxin toxicity, and insomnia is not a recognized symptom of digoxin toxicity.

5. A client is admitted with an arterial ischemic leg ulcer. The nurse expects to note that this ulcer has which typical characteristic?

• A. Dark pink base
• B. Deep and painful
• C. Accompanied by very slight pain
• D. Brown pigmentation of surrounding skin

Correct answer: B

Rationale: Arterial ischemic ulcers are typically characterized by being deep and painful, often with a pale or necrotic base. The lack of adequate blood flow leads to tissue damage, resulting in these ulcers having a deep appearance and causing significant pain to the individual. The other options are not commonly associated with arterial ischemic ulcers; a dark pink base, very slight pain, or brown pigmentation of surrounding skin are not typical features of this type of ulcer.

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