HESI RN

1. A client with a history of chronic kidney disease is scheduled for a CT scan with contrast. Which laboratory value should the nurse review before the procedure?

• A. Serum potassium
• B. Blood urea nitrogen (BUN)
• C. Serum creatinine
• D. Serum glucose

Correct Answer: C

Rationale: Before a CT scan with contrast, the nurse should review the serum creatinine level. This is crucial in assessing kidney function because contrast agents can potentially worsen renal function, leading to contrast-induced nephropathy. Monitoring serum creatinine helps in identifying patients at risk and taking necessary precautions. Serum potassium (Choice A) is important in conditions like hyperkalemia but is not the priority before a contrast CT scan. Blood urea nitrogen (BUN) (Choice B) is another renal function test but is not as specific as serum creatinine for assessing kidney function. Serum glucose (Choice D) is important in monitoring blood sugar levels, especially in diabetic patients, but it is not directly related to the risk of contrast-induced nephropathy in this scenario.

2. A female client with ovarian cancer is receiving chemotherapy. Which laboratory result should the nurse report to the healthcare provider immediately?

• A. White blood cell count of 2,000/mm³
• B. Platelet count of 100,000/mm³
• C. Hemoglobin level of 10 g/dL
• D. Serum creatinine level of 1.5 mg/dL

Correct Answer: A

Rationale: A white blood cell count of 2,000/mm³ is critically low and places the client at high risk for infection, requiring immediate intervention. Neutropenia, a low white blood cell count, is a common side effect of chemotherapy. A decreased white blood cell count compromises the immune system's ability to fight infections, making it a priority to address to prevent serious complications. Platelet count of 100,000/mm³ is relatively low but not as urgent as a severely low white blood cell count. Hemoglobin level of 10 g/dL is within the normal range for females and does not require immediate intervention. Serum creatinine level of 1.5 mg/dL is also within the normal range and does not pose an immediate threat to the client's health.

3. A client with a spinal cord injury at the T1 level is admitted with a suspected deep vein thrombosis (DVT) in the right leg. Which intervention should the nurse implement first?

• A. Administer prescribed anticoagulant therapy
• B. Place the client on bedrest
• C. Elevate the client's right leg
• D. Apply compression stockings to the right leg

Correct Answer: B

Rationale: The correct answer is to place the client on bedrest. Placing the client on bedrest is the priority intervention as it helps prevent the risk of embolization from the DVT, which could lead to a life-threatening pulmonary embolism. Administering anticoagulant therapy, elevating the client's right leg, or applying compression stockings are important interventions in managing DVT but should come after ensuring the client is on bedrest to prevent the dislodgment of the clot.

4. A client is being treated with an aminoglycoside antibiotic for a serious gram-negative infection. What nursing action should be included in the plan of care to prevent nephrotoxicity?

• A. Monitor serum creatinine levels daily.
• B. Administer the antibiotic over a longer period of time.
• C. Encourage increased fluid intake.
• D. Restrict dietary protein intake.

Correct Answer: A

Rationale: Monitoring serum creatinine levels daily is the essential nursing action to prevent nephrotoxicity from aminoglycoside antibiotics. Aminoglycosides can cause kidney damage, so monitoring serum creatinine levels helps in detecting early signs of nephrotoxicity. Administering the antibiotic over a longer period of time (choice B) does not directly prevent nephrotoxicity. Encouraging increased fluid intake (choice C) is a general good practice but not specifically aimed at preventing nephrotoxicity. Restricting dietary protein intake (choice D) is not a direct preventive measure against aminoglycoside-induced nephrotoxicity.

5. Which assessment finding requires immediate intervention for a client receiving enteral feedings via a nasogastric tube?

• A. Auscultate the client's lungs for breath sounds
• B. Check the client's blood glucose level
• C. Monitor the client's bowel sounds
• D. Elevate the head of the bed to 45 degrees

Correct Answer: D

Rationale: Elevating the head of the bed to 45 degrees is crucial for clients receiving enteral feedings via a nasogastric tube to prevent aspiration. Aspiration can lead to serious complications such as pneumonia. Auscultating the client's lungs for breath sounds (choice A) is important but not as urgent as preventing aspiration. Checking the client's blood glucose level (choice B) and monitoring bowel sounds (choice C) are also essential aspects of care for a client receiving enteral feedings, but they do not take precedence over preventing aspiration.