Nursing Elites

1. Before administering furosemide (Lasix) to a client with heart failure, what is the most important laboratory test result for the nurse to check?

• A. Potassium level
• B. Creatinine level
• C. Cholesterol level
• D. Blood urea nitrogen

Correct answer: A

Rationale: The correct answer is to check the potassium level before administering furosemide (Lasix) to a client with heart failure. Furosemide is a loop diuretic that can cause hypokalemia, so it is crucial to assess the potassium level to prevent complications like cardiac arrhythmias associated with low potassium levels.

2. The burn client is receiving treatments of topical mafenide acetate (Sulfamylon) to the site of injury. The nurse monitors the client, knowing that which of the following indicates that a systemic effect has occurred?

• A. Hyperventilation
• B. Elevated blood pressure
• C. Local pain at the burn site
• D. Local rash at the burn site

Correct answer: A

Rationale: Hyperventilation is an indication of a systemic effect of mafenide acetate (Sulfamylon) due to its potential to cause acidosis by suppressing renal excretion of acid. If hyperventilation occurs, the medication should be discontinued to prevent further complications.

3. Which laboratory test should the nurse monitor to determine the effectiveness of heparin therapy for a client with deep vein thrombosis?

• A. Platelet count
• B. Prothrombin time (PT)
• C. Activated partial thromboplastin time (aPTT)
• D. Hemoglobin and hematocrit

Correct answer: C

Rationale: The activated partial thromboplastin time (aPTT) is the specific laboratory test used to monitor the effectiveness of heparin therapy in patients with deep vein thrombosis. It measures the time it takes for blood to clot and is crucial in assessing the therapeutic range of heparin. Platelet count, prothrombin time (PT), and hemoglobin and hematocrit levels are important parameters in assessing coagulation and blood status but do not directly indicate the effectiveness of heparin therapy.

4. The clinic nurse is performing an admission assessment on a client. The nurse notes that the client is taking azelaic acid (Azelex). Because of the medication prescription, the nurse would suspect that the client is being treated for:

• A. Acne
• B. Eczema
• C. Hair loss
• D. Herpes simplex

Correct answer: A

Rationale: Azelaic acid (Azelex) is a topical medication used to treat mild to moderate acne. It works by suppressing the growth of Propionibacterium acnes and decreasing the proliferation of keratinocytes in the skin. Therefore, if a client is prescribed azelaic acid, the nurse would suspect that the client is being treated for acne.

5. Heparin sodium is prescribed for the client. The nurse expects that the healthcare provider will prescribe which of the following to monitor for a therapeutic effect of the medication?

• A. Hematocrit level
• B. Hemoglobin level
• C. Prothrombin time (PT)
• D. Activated partial thromboplastin time (aPTT)

Correct answer: D

Rationale: The correct answer is D, activated partial thromboplastin time (aPTT). Heparin affects the intrinsic pathway of coagulation. Monitoring aPTT helps ensure that heparin sodium is within the therapeutic range to prevent clot formation. Hematocrit and hemoglobin levels assess red blood cell concentrations and are not specific to monitoring heparin therapy. Prothrombin time (PT) is used to monitor the therapeutic effect of warfarin sodium, which affects the extrinsic pathway of coagulation, not heparin.

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