ATI LPN
Urinary System Questions Questions
Question 1 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 2 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.
Question 3 of 5
Urine with a high concentration of C₆Hâ‚â‚‚O₆ is:
Correct Answer: D
Rationale: C₆Hâ‚â‚‚O₆ (glucose) in urine (D) is abnormal (glycosuria) as it's filtered and reabsorbed, not secreted, unless the threshold is exceeded (e.g., diabetes). Normal (A, B) or secreted (C) options misalign, making D correct.
Question 4 of 5
A patient in the hospital has a history of functional urinary incontinence. Which nursing action will be included in the plan of care?
Correct Answer: A
Rationale: Functional incontinence from mobility/cognitive issues improves with a bedside commode (A) for easier access. Credé (B) and residuals (C) are for overflow, and Kegel (D) is for stress incontinence, making A the best action.
Question 5 of 5
Which question should the nurse ask to assess a patient's dysuria?
Correct Answer: D
Rationale: Dysuria is painful urination. The alternate responses can be used to assess other urinary tract symptoms: hematuria, nocturia, and frequency.