ATI RN
Urinary System Test Questions And Answers Questions
Question 1 of 5
All of the following about malpighian renal corpuscle are true EXCEPT:
Correct Answer: D
Rationale: Malpighian corpuscle (glomerulus + Bowman's) has podocytes (visceral), squamous epithelium (parietal), and mesangial cells, but glomerular capillaries have a fenestrated (not interrupted) basement membrane for filtration. This exception distinguishes filtration barrier structure, vital for renal physiology, contrasting with complete descriptions.
Question 2 of 5
Glucose reabsorption is:
Correct Answer: C
Rationale: Glucose is reabsorbed in proximal tubules via sodium-glucose cotransport (SGLT) at the luminal (not basal) border, with a tubular maximum not passive, distal, or unlimited. 'C' is closest, assuming typo. This distinguishes glucose handling, key for glycosuria, contrasting with passive mechanisms.
Question 3 of 5
Which of the following conditions does not predispose to urolithiasis?
Correct Answer: D
Rationale: Urolithiasis is predisposed by hypercalcemia (calcium stones), hydronephrosis (stasis), pyelonephritis (infection stones), and BPH (obstruction) not spermatocele (scrotal cyst). This distinguishes stone risk factors, key for prevention, contrasting with unrelated conditions.
Question 4 of 5
The major pathophysiological mechanisms that contribute to Uric Acid stones are all EXCEPT
Correct Answer: D
Rationale: Uric acid stones form due to low urinary volume (concentrates urate), low pH (undissociated uric acid), and hyperuricosuria (excess urate excretion) direct urinary factors. Hyperuricemia (high blood urate) contributes indirectly via excretion but isn't a primary urinary mechanism stones need urinary conditions, not just serum levels. Low volume reduces dilution, low pH shifts solubility, and hyperuricosuria overloads urine. Exclusion of hyperuricemia distinguishes it, critical for focusing on urine-based stone formation, unlike blood-centric error.
Question 5 of 5
For Uropathogenic E.coli, the following statement is true regarding P Pili
Correct Answer: A
Rationale: P pili in uropathogenic E. coli strongly link to pyelonephritis adhere to renal epithelium, aiding ascent. Mannose-sensitive are type 1 pili, not P distinct adhesins (P are mannose-resistant). Type 1 is separate P pili are Pap-encoded. Fm operon codes type 1, not P Pap genes apply. Pyelonephritis association distinguishes P pili, critical for UPEC virulence, unlike sensitivity, naming, or genetic errors.