Nursing Elites

1. A client asks the nurse if all donor blood products are cross-matched with the recipient to prevent a transfusion reaction. Which of the following always requires cross-matching?

• A. packed red blood cells
• B. platelets
• C. plasma
• D. granulocytes

Correct answer: A

Rationale: Corrected Rationale: Packed red blood cells contain antigens and antibodies that must be matched between the donor and recipient to prevent transfusion reactions. Platelets, plasma, and granulocytes do not contain red blood cells, so they do not require cross-matching. Platelets are matched based on ABO compatibility, while plasma and granulocytes are not routinely cross-matched as they lack red cell antigens.

2. Narrow therapeutic index medications:

• A. are drug formulations with limited pharmacokinetic variability.
• B. have limited value and require no monitoring of blood levels.
• C. have less than a twofold difference in minimum toxic levels and minimum effective concentration in the blood
• D. have limited potency and side effects.

Correct answer: C

Rationale: The therapeutic index is the ratio between the median lethal dose and median effective dose of a drug, indicating the safety margin. Narrow therapeutic index medications have a small difference between minimum toxic levels and minimum effective concentration in the blood, making them high-risk drugs that require close monitoring to avoid toxicity. Choice A is incorrect because pharmacokinetics refer to drug absorption, distribution, metabolism, and elimination, not the therapeutic index. Choice B is incorrect because narrow therapeutic index drugs necessitate monitoring due to their narrow margin of safety. Choice D is incorrect because narrow therapeutic index drugs do not necessarily have limited potency but are characterized by a small window between efficacy and toxicity.

3. Several clients are admitted to the emergency room following a three-car vehicle accident. Which clients can be assigned to share a room in the emergency department during the disaster?

• A. The schizophrenic client experiencing visual and auditory hallucinations and the client with ulcerative colitis
• B. The client who is 6 months pregnant with abdominal pain and the client with facial lacerations and a broken arm
• C. A child with fixed and dilated pupils and his parents, and the client with a frontal head injury
• D. The client who arrives with a large puncture wound to the abdomen and the client with chest pain

Correct answer: B

Rationale: The correct answer is to assign the client who is 6 months pregnant with abdominal pain and the client with facial lacerations and a broken arm to share a room. The pregnant client needs close monitoring due to the abdominal pain, and the client with facial lacerations and a broken arm requires immediate attention for wound care and possible fracture management. Choice A should not be assigned together as the schizophrenic client experiencing visual and auditory hallucinations needs a separate room for privacy and safety, and the client with ulcerative colitis may require isolation due to the risk of infection. Choice C is incorrect because the child with fixed and dilated pupils is likely in a critical condition and should be in a private room with parents, while the client with a frontal head injury needs a separate room for focused care. Choice D is also incorrect as the client with a large puncture wound to the abdomen needs immediate attention in a separate room, and the client with chest pain requires evaluation and monitoring in a separate setting as well.

4. A 50-milliliter (ml) bolus of normal saline fluid is ordered by the physician. The physician wants it to infuse in 30 minutes. The nurse should set the pump rate at:

• A. 100 ml per hour for one hour.
• B. 60 ml per hour for one-half hour
• C. 120 ml per hour for one hour.
• D. 50 ml per hour for one hour.

Correct answer: A

Rationale: To infuse a 50 ml bolus in 30 minutes, the rate should be calculated as follows: 50 ml / 30 min = 100 ml per hour. Therefore, the correct answer is to set the pump rate at 100 ml per hour for one hour. Choice A is the correct rate based on the calculation. Choices B, C, and D all provide incorrect rates that do not match the physician's order. Choice B would only deliver 30 ml in 30 minutes, not the ordered 50 ml. Choice C would deliver 120 ml in one hour, which is 20 ml more than ordered. Choice D would only provide 25 ml over 30 minutes, not the full 50 ml prescribed.

5. A client with suspected renal disease is to undergo a renal biopsy. The nurse plans to include which statement in the teaching session?

• A. "You will be positioned lying down during the examination procedure."?
• B. "Portions of the procedure will cause pain or discomfort."?
• C. "You may be given anesthesia during the procedure."?
• D. "You should refrain from eating or drinking before the procedure."?

Correct answer: B

Rationale: The correct answer is to inform the client that portions of the renal biopsy procedure can cause pain or discomfort, particularly when the sample is being withdrawn. This prepares the client for any unpleasant sensations during the procedure. Answer A is incorrect because the client will be positioned lying down, not sitting up, during the exam, so this information is not relevant to include in the teaching session. Answer C is incorrect as anesthesia is commonly used to numb the area for a renal biopsy, reducing pain, so the client can expect to receive anesthesia. Answer D is incorrect because clients are usually instructed to refrain from eating or drinking for a period before the procedure to prevent any complications during the biopsy, not simply before the study.

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