ATI LPN
Urinary System Test Questions and Answers Questions
Question 1 of 5
Most reabsorption of substances from the glomerular filtrate occurs in the:
Correct Answer: C
Rationale: The proximal convoluted tubule (PCT) (C) reabsorbs ~65% of glomerular filtrate, including water, glucose, and ions, due to its microvilli and carrier proteins. The glomerulus (A) filters, not reabsorbs, the collecting tubule (B) adjusts urine concentration, and the ureter (D) transports urine, making C the primary reabsorption site.
Question 2 of 5
Aldosterone causes:
Correct Answer: D
Rationale: Aldosterone increases Na⺠reabsorption and K⺠secretion (D), reducing urine volume by retaining water. Decreased K⺠(A), increased Na⺠(B), or more output (C) oppose this, making D correct.
Question 3 of 5
A nurse cares for a client who has elevated levels of antidiuretic hormone (ADH). Which disorder should the nurse identify as a trigger for the release of this hormone?
Correct Answer: B
Rationale: ADH is triggered by dehydration to increase water reabsorption in the kidneys.
Question 4 of 5
A nurse plans care for a client with overflow incontinence. Which intervention should the nurse include in this client's plan of care to assist with elimination?
Correct Answer: D
Rationale: Valsalva maneuver aids voiding in overflow incontinence when reflex arc is impaired.
Question 5 of 5
A nurse teaches clients about the difference between urge incontinence and stress incontinence. Which statements should the nurse include in this education? (Select all that apply.)
Correct Answer: B
Rationale: Stress incontinence links to weak muscles, urge to abnormal contractions, key distinctions.