Nursing Elites

1. The nurse is assessing a client with a diagnosis of pre-renal acute kidney injury (AKI). Which condition would the nurse expect to find in the client’s recent history?

• A. Pyelonephritis
• B. Myocardial infarction
• C. Bladder cancer
• D. Kidney stones

Correct answer: B

Rationale: In pre-renal acute kidney injury, there is a decrease in perfusion to the kidneys. Myocardial infarction can lead to decreased blood flow to the kidneys, causing pre-renal AKI. Pyelonephritis is an intrinsic/intrarenal cause of AKI involving kidney damage. Bladder cancer and kidney stones are post-renal causes of AKI due to urinary flow obstruction, not related to perfusion issues seen in pre-renal AKI.

2. The nurse is teaching a nursing student about the minimal effective concentration (MEC) of antibiotics. Which statement by the nursing student indicates understanding of this concept?

• A. A serum drug level greater than the MEC ensures that the drug is bacteriostatic.
• B. A serum drug level greater than the MEC broadens the spectrum of the drug.
• C. A serum drug level greater than the MEC helps eradicate bacterial infections.
• D. A serum drug level greater than the MEC increases the therapeutic index.

Correct answer: C

Rationale: The MEC is the minimum amount of drug needed to halt the growth of a microorganism. A level greater than the MEC helps eradicate infections. Drugs at or above the MEC are usually bactericidal, not bacteriostatic. Therefore, choice A is incorrect. Broadening the spectrum of a drug refers to its range of activity against different microorganisms, which is not directly related to MEC. Thus, choice B is incorrect. Increasing the therapeutic index involves maximizing the effectiveness of a drug while minimizing its toxicity, which is not specifically related to MEC. Therefore, choice D is also incorrect.

3. A healthcare professional reviews a client’s laboratory results. Which results from the client’s urinalysis should the healthcare professional identify as normal? (Select all that apply.)

• A. pH: 6
• B. Specific gravity: 1.015
• C. Glucose: negative
• D. All of the above

Correct answer: D

Rationale: In a urinalysis, a pH of 6 is within the normal range (typically between 4.6 and 8); a specific gravity of 1.015 is considered normal (usually ranging between 1.005 to 1.030); and a negative glucose result is also normal. Therefore, choices A, B, and C are correct as they fall within the normal values for a urinalysis. Choices A, B, and C are the correct answers, as the pH, specific gravity, and glucose levels are within the normal range for a urinalysis. Choice D is correct because all the listed values are normal. Choices A, B, and C are the correct options as they meet the criteria for normal urinalysis values. The other choices do not fall within the normal range for a urinalysis.

4. After a session of hemodialysis, the nurse should monitor the client for which of the following complications of hemodialysis?

• A. Hyperkalemia.
• B. Hypotension.
• C. Infection.
• D. Fever.

Correct answer: B

Rationale: The correct answer is 'B: Hypotension.' Hypotension is a common complication of hemodialysis because fluid removal during the process can lead to a drop in blood pressure. The nurse should closely monitor the client for signs of hypotension such as dizziness, lightheadedness, or a decrease in blood pressure readings. Choice 'A: Hyperkalemia' is incorrect because hemodialysis actually helps lower potassium levels by removing excess potassium from the blood. Choice 'C: Infection' is incorrect as it is not a direct complication of hemodialysis but rather a risk associated with invasive procedures. Choice 'D: Fever' is incorrect as fever is not a typical immediate post-hemodialysis complication unless an underlying infection is present.

5. A child who weighs 10 kg will begin taking oral trimethoprim-sulfamethoxazole (TMP-SMX). The liquid preparation contains 40 mg of TMP and 200 mg of SMX per 5 mL. The nurse determines that the child’s dose should be 8 mg of TMP and 40 mg of SMX/kg/day divided into two doses. Which order for this child is correct?

• A. 5 mL PO BID
• B. 5 mL PO daily
• C. 10 mL PO BID
• D. 10 mL PO daily

Correct answer: A

Rationale: The correct answer is A: '5 mL PO BID.' To calculate the child’s daily dose requirement, you multiply the child's weight (10 kg) by the prescribed dosage per kg, which is 8 mg for TMP and 40 mg for SMX. This results in a total daily requirement of 80 mg of TMP and 400 mg of SMX. To divide this into two doses, each dose should contain half of the total daily requirement, which is 40 mg TMP and 200 mg SMX. Since the liquid preparation contains 40 mg of TMP and 200 mg of SMX per 5 mL, the correct dose per administration is 5 mL. Therefore, 5 mL PO BID is the correct order. Choice B, '5 mL PO daily,' is incorrect as the total daily dose needs to be divided into two doses. Choices C and D, '10 mL PO BID' and '10 mL PO daily,' respectively, are incorrect as they do not align with the calculated dosage requirements based on the child's weight and the prescribed dosage per kg.

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