ATI RN
Critical Care Nursing Questions Questions
Question 1 of 5
In calculating the glomerular filtration rate (GFR) results for women, the creatinine clearance is usually:
Correct Answer: C
Rationale: The correct answer is C: multiplied by 0.85. This is because women typically have lower muscle mass compared to men, resulting in lower creatinine production. Therefore, to adjust for this difference, the creatinine clearance for women is multiplied by 0.85. This correction factor helps to more accurately estimate the GFR in women. Choices A and B are incorrect because the creatinine clearance for women is not the same as or greater than that for men due to the physiological differences in muscle mass. Choice D is also incorrect as multiplying by 1.15 would overestimate the GFR in women.
Question 2 of 5
The patient has just returned from having an arteriovenous fistula placed. The patient asks, “When will they be able to use this and take this other catheter out?” The nurse should reply,
Correct Answer: C
Rationale: The correct answer is C: “The fistula will be usable in about 4 to 6 weeks.” The rationale for this is that an arteriovenous fistula typically requires 4 to 6 weeks to mature and be ready for use. During this time, the fistula develops the necessary blood flow for efficient dialysis. Choice A is incorrect because immediate use of the fistula is not recommended as it needs time to mature. Choice B is incorrect as it underestimates the time needed for the fistula to heal and mature. Choice D is incorrect as the usability of the fistula is not dependent on the manufacturer but rather on the patient's individual healing process.
Question 3 of 5
Slow continuous ultrafiltration is also known as isolated ultrafiltration and is used to
Correct Answer: A
Rationale: The correct answer is A because slow continuous ultrafiltration removes excess plasma water in cases of volume overload by applying a pressure gradient across a semipermeable membrane. This process helps to achieve fluid balance without removing solutes. Choice B is incorrect because convection is not the primary mechanism of slow continuous ultrafiltration. Choice C is incorrect as dialysate is not added in slow continuous ultrafiltration. Choice D is incorrect as slow continuous ultrafiltration does not combine all three processes of ultrafiltration, convection, and dialysis.
Question 4 of 5
The nurse is caring for a patient receiving peritoneal dialysis. The patient suddenly complains of abdominal pain and chills. The patient’s temperature is elevated. The nurse should
Correct Answer: D
Rationale: Step 1: Abdominal pain, chills, and elevated temperature suggest a serious complication like visceral perforation. Step 2: Peritoneal dialysate return assessment won't address the potential life-threatening issue. Step 3: Checking blood sugar or evaluating neurological status is not relevant to the presenting symptoms. Step 4: Informing the provider of probable visceral perforation is crucial for prompt intervention and further evaluation.
Question 5 of 5
The most common reasons for initiating dialysis in acute kidney injury include which of the following? (Select all that apply.)
Correct Answer: C
Rationale: The correct answer is C: Volume overload. In acute kidney injury, impaired kidney function leads to fluid retention, causing volume overload. Dialysis helps remove excess fluid to restore fluid balance. Acidosis and hyperkalemia are potential complications of acute kidney injury but not the primary reasons for initiating dialysis. Hypokalemia is unlikely in acute kidney injury due to impaired excretion of potassium by the kidneys. Therefore, the most common reason for initiating dialysis in acute kidney injury is to manage volume overload.