1000+ Urology Basic Science Multiple Choice Question Answer [Solved]

1. Which of the following is false regarding zona glomeruloza?
A. the most superficial layer of the adrenal cortex
B. responses to increased potassium levels, renin or decreased renal blood flow
C. it causes pheochromocytoma
D. secretes aldosterone
Answer : C

2. Which group(s) of lymph nodes drain(s) the glans penis?
A. internal and external iliac
B. superficial inguinal
C. deep inguinal
D. superficial and deep inguinal
Answer : A

3. Which part of the male urethra is the narrowest?
A. the membranous
B. the bladder neck
C. the bulbous
D. the external urethral meatus
Answer : D

4. How many renal papillae are there in a typical kidney?
A. 4 to 6
B. 7 to 9
C. 10 to 12
D. 13 to 14
Answer : B

5. Where is the gene sex-determining region (SRY) located at?
A. long arm of X chromosome
B. long arm of Y chromosome
C. short arm of Y chromosome
D. short arm of X chromosome
Answer : C

6. Which statement is true about the female urethra?
A. harder to catheterize when compared to the male urethra
B. 4 inch long
C. opens into the vestibule below the clitoris
D. gets wider at the post-menopausal age
Answer : C

7. Which of the following diabetes mellitus treatments causes erectile dysfunction?
A. long-acting insulin
B. metformin
C. sulfonylurea
D. none of the above
Answer : D

8. Which anomaly might accompany horseshoe kidneys?
A. ureteropelvic junction obstruction
B. ureterocele
C. ureteral reflux
D. ureteral atresia
Answer : A

9. Which artery(ies) supply(ies) the prostate?
A. middle rectal
B. inferior vesical
C. a & b
D. none of the above
Answer : C

10. During fluoroscopy, what is the main source of radiation hazards that urologists could be exposed to?
A. scattered radiation from the unleaded wall
B. scattered radiation from the patient
C. scattered radiation from the floor and ceiling
D. radiation from the primary beam
Answer : B

11. In males, which of the following structure(s) can NOT be palpated during digital rectal examination?
A. pelvic floor muscles
B. seminal vesicles
C. anterior surface of the sacrum
D. median lobe of the prostate
Answer : D

12. Adult size of bladder capacity is achieved at what age?
A. 5 6 yrs.
B. 7 8 yrs.
C. 9 10 yrs.
D. 11 12 yrs.
Answer : C

13. What is the narrowest part of the ureter?
A. uretero-pelvic junction
B. uretero-vesical junction
C. where ureters cross the pelvic brim
D. where ureters cross the common iliac bifurcation
Answer : B

14. What is true regarding hematospermia?
A. should be investigated thoroughly like hematuria
B. is rarely associated with significant urologic pathology
C. carries a risk of infertility
D. mandates testicular biopsy
Answer : B

15. What is false concerning the urinary bladder anatomy?
A. as it distends, it peels off the peritoneum from the abdominal wall
B. the interureteric ridge is located between the 2 ureteric orifices and the uvula vesicae
C. Waldeyer`s sheath covers only the distal ureter and forms the deep trigone
D. in adults, it is percussible over the abdomen when contains at least 150 ml
Answer : B

16. What is the creatinine clearance in ml/min for a 70 kg man aging 50 yrs. with 1.1 mg/dL serum creatinine?
A. 79.54
B. 44.19
C. 84.15
D. 94.25
Answer : A

17. What is the most common cause of hematuria in men over 60 yrs.?
A. kidney stones
B. glomerulonephritis
C. BPH
D. bladder cancer
Answer : C

18. What is the most significant complication of cyclosporine?
A. hepatic toxicity
B. renal toxicity
C. neural toxicity
D. cardiac toxicity
Answer : B

19. What is false concerning fosfomycin antibiotic?
A. has a limited cross-resistance with most common antibacterial agents
B. causes injection site reactions
C. is active against most uropathogens
D. is effective as a single-dose agent
Answer : B

20. Which of the following hormones, primarily, controls spermatogenesis?
A. GnRH
B. testosterone
C. LH
D. FSH
Answer : B

21. What causes pure testicular feminization is:
A. over estrogen synthesis
B. defective end-organ androgen response
C. extra X chromosome (XXY)
D. failure of genital ridge regression
Answer : B

22. What is the appropriate intravenous maintenance fluid for a 16 kg girl?
A. 43 ml/hr of nomal saline
B. 78 ml/hr of ¼ normal saline
C. 69 ml/hr of ½ normal saline
D. 54 ml/hr of ¼ normal saline
Answer : D

23. Which class of the following diuretics could cause erectile dysfunction?
A. loop diuretics
B. thiazide diuretics
C. potassium sparing diuretics
D. osmotic diuretics
Answer : B

24. The commonest neoplasms that metastasize to kidneys come from:
A. breasts
B. thyroids
C. lungs
D. liver
Answer : C

25. Which microbe causes red diaper syndrome?
A. Serratia marcescens
B. Streptococcus pyogenes
C. Clostridium difficile
D. Staphylococcus saprophyticus
Answer : A

26. What nerve provides the major neural supply to the striated urinary sphincter and levator ani muscle?
A. somatic innervations
B. sympathetic fibers from T11 - L2
C. the pudendal nerve
D. the obturator nerve
Answer : C

27. What is false about indinavir sulfate stones?
A. intratubular crystal formation might occur
B. CT cannot reliably confirm the presence of indinavir calculi
C. stone formation is demonstrated in 80% of patients taking the medication
D. is a protease inhibitor with poor solubility and significant urinary excretion
Answer : C

28. What class of antibiotics might cause vestibular and/or auditory impairment?
A. aminoglycosides
B. ?antipseudomonal penicillins
C. cephalosporins
D. fluoroquinolones
Answer : A

29. What are the abnormalities that might accompany complete ureteral duplications?
A. reflux to the upper pole ureter, obstruction to the lower pole ureter
B. reflux to the lower pole ureter, obstruction to the upper pole ureter
C. left ureteropelvic junction obstruction, right ureterocele
D. right ureteropelvic junction obstruction, left ureterocele
Answer : B

30. Beside renal excretion of sodium, what does atrial natriuretic hormone cause?
A. constriction of renal afferent arterioles
B. renin inhibition
C. aldosterone stimulation
D. rise in systemic blood pressure
Answer : B

31. Which statement is NOT related to Klinefelter syndrome?
A. sterility is the rule
B. has a considerable short life span
C. treatment requires testicular microdissection and sperm extraction
D. 47 XXY karyotype
Answer : B

32. Which type of renal stone crystals is known as coffin lid?
A. oxalate
B. struvite
C. urate
D. cystine
Answer : B

33. What is false about purple urine bag syndrome?
A. occurs due to the interaction between the chemical components of the urine and polyvinyl chloride material in the urine bag
B. it is commonly symptomless
C. more common in female nursing home residents
D. commonly implicated bacteria are K. pneumoniae, P. mirabilis, E. coli
Answer : A

34. Which layer lies between the superficial and deep inguinal lymph nodes?
A. Scarpa`s fascia
B. fascia lata
C. Dartos fascia
D. Camper`s fascia
Answer : B

35. Renal blood flow is autoregulated by:
A. sympathetic nervous system
B. parasympathetic nervous system
C. urinary output
D. afferent arteriolar resistance
Answer : D

36. What helps in treating Candida albicans cystitis is:
A. sodium bicarbonate
B. phyto soya
C. ascorbic acid
D. sol palmetto
Answer : A

37. Which statement is false concerning smegma?
A. it is the white secretion produced under the foreskin in males
B. it has a crucial role in penile cancer development
C. it contains lysozymes, chymotrypsin, neutrophil elastase and cytokines
D. female smegma can be found between the labia
Answer : B

38. From where does the main parasympathetic efferent innervation to the pelvic plexus arise?
A. S1
B. S2-S4
C. T11-L2
D. L3-S1
Answer : B

39. What is false concerning PSA molecule?
A. the free form of PSA exists in small proportions in the body, and found mainly in BPH and in the ejaculate
B. ?1- anti chymotrypsin binds to 3 epitopes of the PSA molecule to form a complexed PSA
C. ?2- macroglobulin binds to 5 epitopes of the PSA molecule to form a complexed PSA
D. the purified PSA molecule has a molecular weight of 90 kDa
Answer : D

40. Which of the following does NOT increase in prostate cancer?
A. human kallikrein 2
B. pro-PSA
C. free PSA
D. complexed PSA
Answer : C

41. What does apoptosis mean?
A. programmed cell death
B. new vascular formation
C. uninhibited neural stimulation
D. premature muscular contraction
Answer : A

42. Which class of the following agents does NOT impair spermatogenesis?
A. alkylating agents
B. phenothiazines
C. antiandrogens
D. prostaglandins
Answer : B