Nokea
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 most common cause of acute renal failure is shock. In cases of shock, such as hypovolemic shock where there is low blood volume, the kidneys receive inadequate blood flow leading to acute renal failure. This can result in the kidneys starting to die within 20 minutes of low pressure. While nephrotoxic drugs can also cause acute renal failure, shock is more commonly associated with this condition. An enlarged prostate can lead to urinary retention but is not the most common cause of acute renal failure. Diabetes, on the other hand, can cause chronic kidney disease over time but is not typically the primary cause of acute renal failure.
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What is most important for the healthcare professional to do prior to initiating peritoneal dialysis?
- A. Aspirate to check placement
- B. Ensure the client voids
- C. Irrigate the catheter to maintain patency
- D. Warm the fluids
Correct Answer: D
Rationale: The correct answer is to warm the fluids. Warming the dialysis fluids is crucial before initiating peritoneal dialysis to prevent abdominal discomfort and promote vasodilation, which helps in achieving good exchange in the peritoneum. Aspirating to check placement (Choice A) is not typically necessary before initiating peritoneal dialysis. Ensuring the client voids (Choice B) is not directly related to the procedure of peritoneal dialysis. Irrigating the catheter to maintain patency (Choice C) is usually done as part of routine care but is not specifically required prior to initiating peritoneal dialysis. Therefore, the most important action to take before starting peritoneal dialysis is to warm the fluids.
Which hormone is responsible for amenorrhea in the pregnant woman?
- A. Progesterone
- B. Estrogen
- C. Follicle-stimulating hormone (FSH)
- D. Human chorionic gonadotropin (hCG)
Correct Answer: A
Rationale: Correct! Progesterone is the hormone responsible for amenorrhea in pregnant women. Progesterone plays a crucial role in maintaining the uterine lining for implantation and supporting early pregnancy. High levels of progesterone during pregnancy suppress the normal menstrual cycle, leading to amenorrhea. Estrogen, FSH, and hCG do not directly cause amenorrhea in pregnant women. Estrogen is involved in the development of female secondary sexual characteristics, FSH is involved in the growth and maturation of ovarian follicles, and hCG is produced by the placenta to support the production of progesterone during pregnancy.
On morning rounds, the nurse finds a somnolent client with a Blood glucose of 89 mg/dL. A sulfonurea and a proton pump inhibitor are scheduled to be administered. What is the nurse's best action?
- A. Give the proton pump inhibitor and hold the sulfonurea until the client eats
- B. Hold medications and notify the physician
- C. Arouse the client and give some orange juice with sugar packets added
- D. Give the medications as ordered and re-check blood sugar in one hour
Correct Answer: A
Rationale: The correct action is to give the proton pump inhibitor and hold the sulfonurea until the client eats. Sulfonureas should be held for blood glucose levels below 100 mg/dL until the client has food to prevent hypoglycemia. Giving the proton pump inhibitor is appropriate and does not need to be delayed. Option B is incorrect because holding both medications without taking appropriate action may lead to further complications. Option C is not the best choice as it does not address the need to hold the sulfonurea until the client eats. Option D is incorrect because administering the medications without ensuring the client eats may lead to hypoglycemia.
Which medication should the nurse withhold if the client's blood pressure is 88/50?
- A. Rosuvastatin (Crestor)
- B. Enalapril (Vasotec)
- C. Digoxin (Lanoxin)
- D. Clopidogrel (Plavix)
Correct Answer: B
Rationale: Enalapril (Vasotec) is the correct answer. It is an angiotensin-converting enzyme (ACE) inhibitor that can further lower blood pressure. Given that the client's blood pressure is already low at 88/50, administering Enalapril could exacerbate hypotension and compromise perfusion to vital organs. Rosuvastatin (Crestor), Digoxin (Lanoxin), and Clopidogrel (Plavix) are not contraindicated in the context of low blood pressure and may be administered safely.
The nurse is caring for a client with cirrhosis of the liver and suspects that the client may be developing hepatic encephalopathy. Which assessment by the nurse suggests that the client is developing this complication?
- A. Asterixis
- B. Hypertension
- C. Kussmaul respirations
- D. Lethargy
Correct Answer: A
Rationale: Asterixis, also known as flapping tremors, is a characteristic sign of hepatic encephalopathy. It is a flapping tremor of the hands when the wrists are extended, indicating neurological impairment. Hypertension and Kussmaul respirations are not directly associated with hepatic encephalopathy. Lethargy is a common symptom but not a specific sign that suggests the development of hepatic encephalopathy.