ATI RN
Urinary System Test Questions And Answers Questions
Question 1 of 5
Since [H₂CO₃] is very low, that makes it?
Correct Answer: B
Rationale: Low [H₂CO₃] is difficult to measure rapidly dissociates to CO₂/H₂O (e.g., lab challenge). Easy estimation misstates requires CO₂ proxy. Ineffective ignores Henderson-Hasselbalch false. Replacement isn't needed CO₂ suffices. Measurement difficulty distinguishes it, critical for pH calculation, unlike estimation or equation errors.
Question 2 of 5
The hormone that regulates water balance in the kidneys is:
Correct Answer: B
Rationale: ADH increases water reabsorption in collecting ducts not aldosterone (Na+/K+), insulin (glucose), or oxytocin (labor). This identifies water regulation, key for urine concentration, contrasting with electrolyte or metabolic hormones.
Question 3 of 5
The presence of glucose in urine is called:
Correct Answer: B
Rationale: Glycosuria is glucose in urine not proteinuria (protein), hematuria (blood), or pyuria (pus). This identifies diabetic marker, key for diagnosis, contrasting with other abnormalities.
Question 4 of 5
The structure that controls urine release from the bladder is the:
Correct Answer: B
Rationale: Sphincters (internal involuntary, external voluntary) control release not ureter, loop, or duct (kidney). This defines continence mechanism, key for micturition, contrasting with renal structures.
Question 5 of 5
Which of the following statements is INCORRECT
Correct Answer: B
Rationale: Efferent arterioles don't belong to the JGA (includes JG cells, macula densa, lacis cells) not incorrect are fenestrated endothelium, lacis in JGA, or podocytes on basement membrane. This corrects JGA composition, key for RAAS, contrasting with true glomerular traits.