ATI LPN
Urinary System Questions Questions
Question 1 of 5
For the evaluation feedback process to be effective, the medical-surgical nurse who is a manager:
Correct Answer: C
Rationale: Effective evaluation feedback requires regular, specific communication about performance (C), enabling staff to understand strengths and areas for improvement, fostering growth. Weekly meetings (A) may help but aren't specific to feedback, delegation (B) is task assignment, and goal-setting (D) is planning, not evaluation, making C the key to effectiveness.
Question 2 of 5
The following factor(s) tend(s) to INCREASE the rate of glomerular filtration (GFR):
Correct Answer: D
Rationale: Sympathetic stimulation (A) constricts the afferent arteriole, reducing GFR; obstruction (B) increases capsular pressure, lowering GFR; and efferent vasodilation (C) decreases glomerular pressure, reducing GFR. None increase GFR—sympathetic effects lower it, obstruction opposes filtration, and efferent dilation reduces driving force—making D (none are correct) the answer.
Question 3 of 5
All of the following occur within one hour of eating a large acid load EXCEPT:
Correct Answer: C
Rationale: Within an hour, buffers (A), lungs (B), and hemoglobin (D) act, but kidneys can't fully eliminate nonvolatile acids or regenerate all bicarbonate (C) that fast—renal response takes hours to days. C is the exception, making it the answer.
Question 4 of 5
In the proximal convoluted tubule, chloride ions are reabsorbed because of:
Correct Answer: C
Rationale: Chloride follows sodium's active reabsorption in the PCT due to electrical attraction (C), maintaining charge balance. It's not actively transported (A), tied to calcium (B), or driven solely by osmosis (D), making C the mechanism.
Question 5 of 5
If MAP increased from 120 mmHg to 210 mmHg, GFR would most likely
Correct Answer: A
Rationale: Mean arterial pressure (MAP) rising from 120 to 210 mmHg increases glomerular hydrostatic pressure, boosting GFR (A), unless autoregulation fails beyond ~160 mmHg. Decrease (B) or no change (C) ignores pressure effects, making A likely.