which lab test is used to assess renal function
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Nursing Elites

ATI RN

ATI Exit Exam RN

1. Which lab test is used to assess renal function?

Correct answer: B

Rationale: The correct answer is B: Monitor serum creatinine. Serum creatinine is a key indicator of renal function as it reflects the glomerular filtration rate. An increase in serum creatinine levels indicates impaired kidney function. Checking blood glucose levels (choice A) is not specific to assessing renal function but is used to diagnose diabetes. Monitoring BUN (choice C) is important but not as specific as serum creatinine in assessing renal function. Checking electrolyte levels (choice D) is essential in assessing kidney function but is not as specific as monitoring serum creatinine.

2. A nurse is caring for a client who has cirrhosis. Which of the following findings should the nurse expect?

Correct answer: D

Rationale: In clients with cirrhosis, the liver is unable to produce clotting factors efficiently, leading to impaired clotting function. Therefore, an increased prothrombin time is expected in cirrhosis. Choices A, B, and C are incorrect. Decreased bilirubin levels are not typically seen in cirrhosis; prothrombin time is usually increased, not decreased; and albumin levels are often decreased in cirrhosis due to reduced synthetic liver function.

3. A client has a new prescription for levothyroxine, and a nurse is providing teaching. Which of the following client statements indicates an understanding of the teaching?

Correct answer: C

Rationale: The correct answer is C. Levothyroxine is a lifelong medication for clients with hypothyroidism, and it should be taken as prescribed. Choice A is incorrect because levothyroxine should be taken on an empty stomach. Choice B is incorrect because levothyroxine is usually taken in the morning on an empty stomach. Choice D is incorrect because stopping the medication abruptly can have adverse effects on thyroid function.

4. A healthcare professional is preparing to administer an IV fluid bolus of 500 mL over 4 hours to a client who is dehydrated. The healthcare professional should set the IV pump to deliver how many mL/hr?

Correct answer: C

Rationale: Setting the IV pump to 125 mL/hr ensures the correct infusion rate for delivering 500 mL over 4 hours. To calculate the mL/hr rate, divide the total volume to be infused (500 mL) by the total time for infusion (4 hours): 500 mL / 4 hours = 125 mL/hr. Choice A (75 mL/hr) is too low and would result in an insufficient infusion rate, potentially delaying fluid resuscitation. Choice B (100 mL/hr) would also be too low and not deliver the fluid within the specified time frame. Choice D (150 mL/hr) is too high and would infuse the fluid too quickly, potentially causing fluid overload and complications.

5. A nurse is assessing a client who has hypovolemia. Which of the following findings should the nurse expect?

Correct answer: B

Rationale: The correct answer is B: Tachycardia. In hypovolemia, the body responds to decreased fluid volume by increasing the heart rate (tachycardia) to maintain adequate circulation. Bradycardia (Choice A) is not expected in hypovolemia since the heart rate typically increases to compensate for the reduced blood volume. Increased blood pressure (Choice C) is unlikely in hypovolemia as the decreased fluid volume leads to decreased pressure. A bounding pulse (Choice D) is more associated with conditions like hyperthyroidism or fever, not specifically with hypovolemia.

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