ATI RN
Urinary System Test Questions And Answers Questions
Question 1 of 5
Regulation of blood pressure is performed by;
Correct Answer: C
Rationale: Juxtaglomerular apparatus (JGA) regulates BP via renin, not tubule, nephron alone, or all. This pinpoints RAAS control, key for hypertension, contrasting with broader structures.
Question 2 of 5
All of the following statements are True related to the urethra of a male except:
Correct Answer: B
Rationale: Male urethra has two sphincters (internal/external), not one (false), while dual role, glands, and regions (3) are true. This corrects sphincter count, critical for continence, contrasting with true traits.
Question 3 of 5
The cells of which structures contain relatively large numbers of mitochondria?
Correct Answer: C
Rationale: PCT cells have many mitochondria for active reabsorption, not glomerulus (filtration) or arteriole (vessel). This identifies energy demand, critical for transport, contrasting with passive sites.
Question 4 of 5
Which is incorrect of nephrotic syndrome?
Correct Answer: D
Rationale: Hypertension isn't characteristic of nephrotic syndrome occurs secondary (e.g., fluid retention), not defining, incorrect. Proteinuria >3 g/day hallmark, true. Hyperlipidemia compensates hypoalbuminemia classic. Drugs like gold/ACEI cause it recognized. Hypertension's variable presence distinguishes the error, key to nephrotic's core features (proteinuria, hypoalbuminemia, edema, hyperlipidemia), unlike consistent traits.
Question 5 of 5
What is usually considered the number of white cells necessary on microscopy to make the diagnosis of a definite UTI?
Correct Answer: B
Rationale: 10,000 WBC/mm³ (10 WBC/µL unspun) is the threshold for definite UTI significant pyuria confirms infection (e.g., >10/hpf spun). 1,000 is too low normal range. 50,000-100,000 exceed typical severe cases. 10,000 distinguishes it, critical for microscopic diagnosis, unlike subthreshold or excessive counts.