ATI LPN
ATI LPN Test Bank
Renal System Questions and Answers Questions
Question 1 of 5
The concentration of blood is 280 to 300 mosmol/L, but may rise to 1200 mosmol/L in which situation?
Correct Answer: A
Rationale: Vasa recta in medulla reaches high osmolarity for concentration.
Question 2 of 5
What is the purpose of ANP in urine production?
Correct Answer: C
Rationale: ANP reduces sodium reabsorption, increasing urine output.
Question 3 of 5
What is the function of angiotensin II?
Correct Answer: A
Rationale: Angiotensin II constricts systemic arteries, raising blood pressure.
Question 4 of 5
If a urine specific gravity was measured to be 1.003, an interpretation would be that:
Correct Answer: B
Rationale: 1.003 SG suggests dilute urine, indicating hydration.
Question 5 of 5
Litho means?
Correct Answer: B
Rationale: Litho- indicates stone, as in kidney stones.