Nursing Elites

1. A client is admitted with a possible myocardial infarction. Which laboratory test result is most indicative of a myocardial infarction?

• A. Serum creatine kinase (CK)
• B. Serum troponin
• C. Serum myoglobin
• D. C-reactive protein (CRP)

Correct answer: B

Rationale: Serum troponin is the most specific and sensitive indicator of myocardial infarction. Troponin levels rise within 3-4 hours after myocardial damage, peak at 10-24 hours, and remain elevated for up to 10-14 days. Creatine kinase (CK) and myoglobin can also be elevated in myocardial infarction, but troponin is more specific to cardiac muscle damage. C-reactive protein (CRP) is a marker of inflammation and is not specific for myocardial infarction.

2. A female client reports that her hair is becoming coarse and breaking off, the outer part of her eyebrows has disappeared, and her eyes are all puffy. Which follow-up question is best for the nurse to ask?

• A. Is there a history of female baldness in your family?
• B. Are you under any unusual stress at home or work?
• C. Do you work with hazardous chemicals?
• D. Have you noticed any changes in your fingernails?

Correct answer: D

Rationale: The correct answer is D because the manifestations reported by the client, such as coarse hair, missing eyebrows, and puffy eyes, are indicative of hypothyroidism. Changes in the fingernails, such as brittle or pitted nails, can also be associated with hypothyroidism. Option A is incorrect as female baldness is not directly related to the reported symptoms. Option B is less relevant as stress typically does not cause these specific symptoms. Option C is also less relevant as exposure to hazardous chemicals would present with different symptoms.

3. After a sudden loss of consciousness, a female client is taken to the ED, and the initial assessment indicates that her blood glucose level is critically low. Once her glucose level is stabilized, the client reports that she was recently diagnosed with anorexia nervosa and is being treated at an outpatient clinic. Which intervention is most important to include in this client's discharge plan?

• A. Describe the signs and symptoms of hypoglycemia.
• B. Encourage a low-carbohydrate and high-protein diet.
• C. Reinforce the need to continue outpatient treatment.
• D. Suggest wearing a medical alert bracelet at all times.

Correct answer: B

Rationale: Encouraging a low-carbohydrate and high-protein diet is crucial for a client recovering from anorexia nervosa to prevent hypoglycemic episodes. Choice A is not the most important intervention at this point since the client is already aware of hypoglycemia based on the recent event. Choice C is important but not the priority in this situation where dietary intervention is crucial. Choice D, suggesting a medical alert bracelet, is not as essential as ensuring proper nutrition to prevent further hypoglycemic episodes.

4. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value should the nurse monitor closely?

• A. Prothrombin time (PT)
• B. Hemoglobin level
• C. International Normalized Ratio (INR)
• D. Serum sodium level

Correct answer: C

Rationale: The correct answer is C, International Normalized Ratio (INR). The INR should be closely monitored in a client prescribed warfarin (Coumadin) to assess the effectiveness and safety of anticoagulation therapy. Monitoring the INR helps ensure that the client is within the therapeutic range for anticoagulation, reducing the risk of bleeding or clotting complications. Prothrombin time (A) is used to calculate the INR and monitor the effectiveness of warfarin therapy. Hemoglobin level (B) is important but not the primary lab value to monitor when a client is on warfarin. Serum sodium level (D) is not directly related to monitoring warfarin therapy.

5. A client with cirrhosis is admitted with hepatic encephalopathy. Which clinical finding is most concerning?

• A. Confusion and altered mental status
• B. Increased abdominal girth
• C. Yellowing of the skin
• D. Peripheral edema

Correct answer: A

Rationale: Confusion and altered mental status are the most concerning clinical findings in a client with hepatic encephalopathy. These symptoms indicate worsening liver function and potential neurological complications, requiring immediate medical attention. Increased abdominal girth may suggest ascites, yellowing of the skin can indicate jaundice, and peripheral edema may be related to fluid retention, but in the context of hepatic encephalopathy, confusion and altered mental status take precedence due to the risk of rapid deterioration and the need for prompt management.

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