Nursing Elites

1. What is the most common cause of acute renal failure?

• A. Shock
• B. Nephrotoxic drugs
• C. Enlarged prostate
• D. Diabetes

Correct answer: A

Rationale: The correct answer is 'Shock.' Acute renal failure is commonly caused by inadequate blood flow to the kidneys, which can occur in cases of shock. This leads to decreased kidney function and potential kidney damage. While nephrotoxic drugs can also cause acute renal failure, shock is the primary and most common cause. An enlarged prostate may lead to obstructive uropathy but is not the most prevalent cause of acute renal failure. Diabetes is typically associated with chronic kidney disease rather than acute renal failure.

2. A client with urinary tract calculi needs to avoid which of the following foods?

• A. lettuce
• B. cheese
• C. apples
• D. broccoli

Correct answer: B

Rationale: A client with urinary tract calculi needs to avoid foods high in calcium to prevent the formation of more stones. Cheese is high in calcium, so it should be avoided. Lettuce, apples, and broccoli are not typically associated with high calcium content and are safe options for individuals with urinary tract calculi. Therefore, the correct answer is cheese. Choices A, C, and D are not high in calcium and are safe for consumption by individuals with urinary tract calculi.

3. Which of the following medications is a serotonin antagonist that might be used to relieve nausea and vomiting?

• A. metoclopramide (Reglan)
• B. ondansetron (Zofran)
• C. hydroxyzine (Vistaril)
• D. prochlorperazine (Compazine)

Correct answer: B

Rationale: Zofran is a serotonin antagonist that can be used to relieve nausea and vomiting. Ondansetron (Zofran) works by blocking serotonin receptors in the chemoreceptor trigger zone (CTZ) and the gastrointestinal tract. This action helps reduce nausea and vomiting. Metoclopramide (Reglan) works as a dopamine antagonist and also has prokinetic effects, making it effective for different conditions. Hydroxyzine (Vistaril) is an antihistamine with antiemetic properties, but it does not act as a serotonin antagonist. Prochlorperazine (Compazine) is a dopamine antagonist that is also used to treat nausea and vomiting, but not as a serotonin antagonist like ondansetron.

4. When discussing possible complications of pregnancy with a client, the nurse should explain that all of the following are symptoms of urinary tract infection (UTI). Which of the following is least indicative of UTI during pregnancy?

• A. low back pain
• B. urinary frequency
• C. GI distress
• D. malaise

Correct answer: B

Rationale: Urinary frequency is least indicative of UTI during pregnancy. It is a common minor discomfort of pregnancy caused by pressure of the growing uterus on the bladder. As the uterus rises in the second trimester, there are usually no problems. Frequency may return in the third trimester when the uterus drops into the pelvic cavity. UTI symptoms include low back pain, suprapubic discomfort, and malaise, and are confirmed by laboratory findings. Low back pain, GI distress, and malaise are more closely associated with UTI during pregnancy compared to urinary frequency.

5. A nurse has been ordered to administer Morphine to a patient. Which of the following effects is unrelated to Morphine's effects on the patient?

• A. Depressed function of the CNS
• B. Increased blood flow
• C. Decreased venous capacity
• D. Pain relief

Correct answer: C

Rationale: Morphine is a narcotic analgesic that acts centrally to relieve pain by binding to opioid receptors in the CNS, leading to the depressed function of the CNS. Morphine also causes peripheral vasodilation, which can lead to increased blood flow. However, morphine causes venous dilation and increased venous capacity rather than decreased venous capacity. Therefore, the effect of 'Decreased venous capacity' is unrelated to Morphine's effects. Pain relief is a well-known effect of Morphine, as it acts on the CNS to alter the perception of pain.

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