Nokea
The nurse has been assigned the following patients. Which patients require assessment of blood glucose control as a nursing priority? (Select all that apply.)
- A. 18-year-old male who has undergone surgical correction of a fractured femur
- B. 29-year-old female who is undergoing evaluation for pheochromocytoma
- C. 43-year-old male with acute pancreatitis who is receiving total parenteral nutrition (TPN)
- D. 62-year-old morbidly obese female who underwent a hysterectomy for ovarian cancer
Correct Answer: C
Rationale: The correct answer is C because the patient with acute pancreatitis receiving TPN is at risk for hyperglycemia due to the high glucose content in TPN. Monitoring blood glucose levels is crucial to prevent complications.
Explanation for why other choices are incorrect:
A: The 18-year-old male post-surgery for a fractured femur does not have a direct correlation to blood glucose control assessment.
B: The 29-year-old female undergoing evaluation for pheochromocytoma is not directly related to blood glucose control assessment.
D: The 62-year-old morbidly obese female post-hysterectomy for ovarian cancer does not specifically require immediate blood glucose control assessment.
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Which of the following patients is at the greatest risk of developing acute kidney injury? A patient who
- A. has been on aminoglycosides for the past 6 days
- B. has a history of controlled hypertension with a blood pressure of 138/88 mm Hg
- C. was discharged 2 weeks earlier after aminoglycoside therapy of 2 weeks
- D. has a history of fluid overload as a result of heart failure
Correct Answer: C
Rationale: The correct answer is C because the patient was recently discharged after a prolonged course of aminoglycoside therapy, which is a known risk factor for acute kidney injury due to its nephrotoxic effects. Choice A is incorrect because although aminoglycosides can cause kidney injury, the duration of therapy is shorter in this case. Choice B is incorrect because controlled hypertension is not a significant risk factor for acute kidney injury. Choice D is incorrect because fluid overload from heart failure may lead to other complications but is not directly associated with acute kidney injury.
An advantage of peritoneal dialysis is that
- A. peritoneal dialysis is time intensive.
- B. a decreased risk of peritonitis exists.
- C. biochemical disturbances are corrected rapidly.
- D. the danger of hemorrhage is minimal.
Correct Answer: B
Rationale: The correct answer is B: a decreased risk of peritonitis exists. Peritoneal dialysis involves using the peritoneum as a membrane for fluid exchange, reducing the risk of infections like peritonitis compared to hemodialysis. Option A is incorrect as peritoneal dialysis can be done at home and is less time-consuming than hemodialysis. Option C is incorrect as biochemical disturbances are corrected more gradually with peritoneal dialysis. Option D is incorrect as there is a risk of bleeding complications with peritoneal dialysis.
A patient with newly diagnosed type 1 diabetes is being transitioned from an infusion of intravenous (IV) regular insulin to an intensive insulin therapy regimen of insulin glargine and insulin aspart. How should the nurse manage this transition in insulin delivery?
- A. Administer the insulin glargine and continue the IV insulin infusion for 24 hours.
- B. Administer the insulin glargine and discontinue the IV infusion in several hours.
- C. Discontinue the IV infusion and administer the insulin aspart with the next meal.
- D. Discontinue the IV infusion and administer the Lantus insulin at bedtime.
Correct Answer: D
Rationale: The correct answer is D: Discontinue the IV infusion and administer the Lantus insulin at bedtime. This is the correct approach because insulin glargine (Lantus) is a long-acting basal insulin that provides a steady level of insulin throughout the day and night. By administering it at bedtime, it mimics the basal insulin secretion in a person without diabetes. This helps maintain stable blood sugar levels overnight.
Choice A is incorrect because continuing the IV insulin infusion for 24 hours alongside insulin glargine is unnecessary and may lead to insulin overdose. Choice B is incorrect because discontinuing the IV infusion in several hours without administering the long-acting insulin can lead to inadequate insulin coverage. Choice C is incorrect because insulin aspart is a rapid-acting insulin that should be given with meals, not as a basal insulin replacement at bedtime.
Renin plays a role in blood pressure regulation by
- A. activating the renin-angiotensin-aldosterone cascade.
- B. suppressing angiotensin production.
- C. decreasing sodium reabsorption.
- D. inhibiting aldosterone release.
Correct Answer: A
Rationale: The correct answer is A because renin activates the renin-angiotensin-aldosterone cascade. Renin is released by the kidneys in response to low blood pressure or low sodium levels. It acts on angiotensinogen to form angiotensin I, which is then converted to angiotensin II by angiotensin-converting enzyme. Angiotensin II causes vasoconstriction, leading to increased blood pressure, and stimulates aldosterone release, promoting sodium and water retention.
Choice B is incorrect because renin does not suppress angiotensin production; it actually initiates the process. Choice C is incorrect because renin's action leads to increased sodium reabsorption by stimulating aldosterone release. Choice D is incorrect because renin does not inhibit aldosterone release; it promotes it as part of the renin-angiotensin-aldosterone cascade.
Conditions that produce acute kidney injury by directly acting on functioning kidney tissue are classified as intrarenal. The most common intrarenal condition is
- A. prolonged ischemia.
- B. exposure to nephrotoxic substances.
- C. acute tubular necrosis (ATN).
- D. hypotension for several hours.
Correct Answer: C
Rationale: Rationale: Acute tubular necrosis (ATN) is the most common intrarenal condition causing acute kidney injury. ATN is characterized by damage to the renal tubules due to ischemia or nephrotoxic substances. Prolonged ischemia (choice A) and exposure to nephrotoxic substances (choice B) can lead to ATN. Hypotension for several hours (choice D) can result in ischemic injury, which may lead to ATN but is not the direct cause. Therefore, choice C is correct as it directly relates to the primary intrarenal condition of ATN.