Nursing Elites

1. The nurse is caring for a client with a suspected myocardial infarction (MI). Which laboratory test result is most indicative of a recent MI?

• A. Elevated troponin levels
• B. Increased white blood cell count
• C. Increased lactate dehydrogenase (LDH)
• D. Elevated C-reactive protein (CRP)

Correct answer: A

Rationale: Elevated troponin levels are the most specific and sensitive indicator of myocardial infarction. Troponin levels increase within hours of an MI and remain elevated for several days. White blood cell count, lactate dehydrogenase (LDH), and C-reactive protein (CRP) are not specific markers for MI. An increased white blood cell count may indicate inflammation or infection, increased LDH levels can be seen in various conditions like liver disease or muscle injury, and elevated CRP is a general marker of inflammation rather than specific to MI.

2. The nurse administers an antibiotic for a respiratory tract infection. To evaluate the medication's effectiveness, which laboratory values should the nurse monitor?

• A. Platelet count and red blood cell count.
• B. White blood cell count and sputum culture.
• C. Hemoglobin A1c and glucose tolerance test.
• D. Arterial blood gases and serum electrolytes.

Correct answer: B

Rationale: The correct answer is B: White blood cell count and sputum culture. Monitoring white blood cell count and sputum cultures is essential to assess the effectiveness of the antibiotic in treating the respiratory tract infection. Changes in white blood cell count can indicate the body's response to infection, while sputum cultures help determine if the antibiotic is targeting the specific pathogens causing the infection. Choices A, C, and D are incorrect because platelet count, red blood cell count, hemoglobin A1c, glucose tolerance test, arterial blood gases, and serum electrolytes are not directly related to evaluating the effectiveness of an antibiotic in treating a respiratory tract infection.

3. The nurse is providing discharge instructions to a client with chronic venous insufficiency. Which recommendation should the nurse include to help prevent complications?

• A. Use a heating pad on the legs
• B. Wear compression stockings
• C. Massage the legs daily
• D. Elevate legs for 10 minutes every hour

Correct answer: B

Rationale: The correct recommendation for a client with chronic venous insufficiency to prevent complications is to wear compression stockings. Compression stockings help improve venous circulation and prevent the worsening of symptoms. While elevating the legs is also beneficial, the priority intervention in preventing complications is wearing compression stockings. Using a heating pad on the legs can actually worsen the condition by dilating blood vessels, and massaging the legs daily can potentially damage fragile skin in clients with chronic venous insufficiency.

4. A client receiving IV heparin reports abdominal pain and tarry stools. What is the nurse's priority action?

• A. Prepare to administer protamine sulfate.
• B. Continue the heparin infusion and notify the healthcare provider.
• C. Monitor the client's vital signs and assess abdominal pain.
• D. Administer a PRN dose of morphine sulfate.

Correct answer: A

Rationale: The correct answer is to prepare to administer protamine sulfate. Abdominal pain and tarry stools are indicative of gastrointestinal bleeding, a serious side effect of heparin therapy. Protamine sulfate is the antidote for heparin and is used to reverse its effects in cases of bleeding. Continuing the heparin infusion (Choice B) is not appropriate when the client is experiencing signs of bleeding. Monitoring vital signs and assessing abdominal pain (Choice C) is important but not the priority when immediate action is required to address potential bleeding. Administering morphine sulfate (Choice D) is not the priority in this situation; addressing the underlying cause of bleeding takes precedence.

5. The nurse is caring for a client with chronic heart failure who is receiving digoxin therapy. The nurse reviews the client's lab results and notes that the serum potassium level is 3.0 mEq/L. What action should the nurse take next?

• A. Administer a potassium supplement
• B. Notify the healthcare provider
• C. Hold the next dose of digoxin
• D. Increase dietary potassium intake

Correct answer: C

Rationale: In clients receiving digoxin therapy, low potassium levels can increase the risk of digoxin toxicity. Therefore, when the nurse notes a serum potassium level of 3.0 mEq/L, it is crucial to hold the next dose of digoxin. Notifying the healthcare provider is essential to ensure appropriate interventions, such as potassium supplementation, can be implemented. Administering a potassium supplement without healthcare provider guidance may lead to rapid potassium level changes and potential adverse effects. Increasing dietary potassium intake alone may not promptly address the low serum potassium level in this acute situation.

Similar Questions