Nursing Elites

1. Prior to administering warfarin to a client with a history of atrial fibrillation, what lab result should the nurse review?

• A. White blood cell count.
• B. Prothrombin time (PT) and International Normalized Ratio (INR).
• C. Hemoglobin and hematocrit.
• D. Blood urea nitrogen (BUN) and creatinine.

Correct answer: B

Rationale: The correct answer is B: Prothrombin time (PT) and International Normalized Ratio (INR). These lab values are crucial for monitoring the effectiveness of warfarin, an anticoagulant medication. PT measures the time it takes for blood to clot, while INR standardizes these results. Ensuring the client's PT/INR levels are within the therapeutic range is essential to prevent clotting or excessive bleeding. Choices A, C, and D are incorrect as they are not directly related to monitoring warfarin therapy in a client with atrial fibrillation.

2. In assessing a client with type 1 diabetes mellitus, the nurse notes that the client's respirations have changed from 16 breaths/min with a normal depth to 32 breaths/min and deep, and the client becomes lethargic. Which assessment data should the nurse obtain next?

• A. Pulse oximetry
• B. Blood glucose
• C. Arterial blood gases
• D. Serum electrolytes

Correct answer: B

Rationale: Deep, rapid respirations (Kussmaul respirations) and lethargy are signs of diabetic ketoacidosis (DKA), which occurs in uncontrolled type 1 diabetes. Checking the blood glucose is the priority to confirm hyperglycemia and guide immediate treatment. Pulse oximetry is not the priority in this situation as the issue is related to altered glucose levels, not oxygenation. Arterial blood gases and serum electrolytes may be important later in the management of DKA but are not the initial priority compared to confirming and addressing the hyperglycemia.

3. A client is scheduled for a colonoscopy and has been prescribed a bowel preparation. What is the most important instruction for the nurse to provide?

• A. Eat a low-fiber diet the day before the procedure
• B. Drink clear liquids 24 hours before the procedure
• C. Take the entire bowel preparation as directed
• D. Avoid all solid foods 12 hours before the procedure

Correct answer: C

Rationale: The most important instruction for the nurse to provide to a client scheduled for a colonoscopy and prescribed a bowel preparation is to take the entire bowel preparation as directed. Completing the entire bowel preparation as prescribed is crucial to ensure the colon is properly cleansed for the colonoscopy. Incomplete bowel prep can interfere with the visualization of the colon, leading to inaccurate results. Choices A, B, and D are important but not as crucial as ensuring the complete intake of the bowel preparation for an effective procedure.

4. A client with deep vein thrombosis (DVT) is prescribed heparin. What lab value should the nurse monitor to assess the effectiveness of the therapy?

• A. Prothrombin time (PT).
• B. Partial thromboplastin time (PTT).
• C. International Normalized Ratio (INR).
• D. Hemoglobin and hematocrit.

Correct answer: B

Rationale: The correct answer is B: Partial thromboplastin time (PTT). PTT is the lab value used to monitor the effectiveness of heparin therapy in clients with DVT. It measures the intrinsic pathway of coagulation and is prolonged by heparin therapy. Prothrombin time (PT) and International Normalized Ratio (INR) are primarily used to monitor warfarin therapy, not heparin. Checking hemoglobin and hematocrit levels is important but does not directly assess the effectiveness of heparin therapy in DVT.

5. A client presents with severe dehydration due to prolonged vomiting. What is the nurse's priority intervention?

• A. Encourage the client to drink clear fluids.
• B. Assess the client's skin turgor and mucous membranes.
• C. Monitor the client's vital signs frequently.
• D. Administer an antiemetic as prescribed.

Correct answer: B

Rationale: The correct answer is to assess the client's skin turgor and mucous membranes. When a client presents with severe dehydration, assessing skin turgor (elasticity of the skin) and mucous membranes (such as checking for dryness in the mouth) is crucial in determining the extent of dehydration. Encouraging the client to drink clear fluids (Choice A) may be important but assessing dehydration severity takes precedence. Monitoring vital signs (Choice C) is essential but assessing dehydration status comes first. Administering an antiemetic (Choice D) addresses vomiting but does not directly assess dehydration.

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