ATI LPN
Urinary and Renal System Questions Questions
Question 1 of 5
A patient on hemodialysis is given sevelamer hydrochloride with meals. What is the primary reason?
Correct Answer: D
Rationale: Sevelamer binds phosphorus to prevent bone damage.
Question 2 of 5
In the female urinary system, the urethral orifice is situated posterior to the vaginal orifice
Correct Answer: B
Rationale: In females, the urethral orifice is anterior to the vaginal orifice (B), not posterior, due to anatomical positioning (urethra above vagina). True (A) reverses this, making B correct.
Question 3 of 5
The micturition center is located in the:
Correct Answer: A
Rationale: The micturition center in the pons (A) coordinates the reflex via parasympathetic signals, not medulla (B), cerebellum (C), or basal ganglia (D), making A the control site.
Question 4 of 5
The main solute component of urine is:
Correct Answer: A
Rationale: Urea (A), a nitrogenous waste from protein metabolism, is the primary solute in urine (~50% of solids). Glucose (B) is absent normally, agglutin (C) is invalid, and urobilinogen (D) is minor, making A correct.
Question 5 of 5
A nurse teaches a client who is recovering from a urography. Which instruction should the nurse include in this client's discharge teaching?
Correct Answer: C
Rationale: High fluid intake helps eliminate nephrotoxic dye quickly after urography.