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

1. What is the half-life of ?-HCG?
A. 5 7 days
B. 24 36 hours
C. 2 3 days
D. 12 24 hours
Answer : B

2. Which period of intrauterine life does the process of organ formation (organogenesis) take place?
A. 9 12 weeks
B. 12 15 weeks
C. 15 18 weeks
D. 18 21 weeks
Answer : A

3. What is false concerning renal vasculature?
A. there are 4 surgical segments of the kidney, based on the segmental artery distribution
B. along the kidney convexity, there is an avascular plane
C. there are no collaterals between segmental arteries
D. in < 10%, the posterior branch is the first to branch off the renal artery
Answer : D

4. Hematuria of glomerular origin is associated with:
A. significant proteinuria, dysmorphic RBCs, RBC casts
B. glycosuria, eumorphic RBCs, WBC casts
C. hypercalciuria, eumorphic RBCs, granular casts
D. proteinuria, dysmorphic RBCs, hyaline casts
Answer : A

5. What is false concerning the collecting system structures of a typical kidney?
A. the renal pelvis could be intra or extra renal
B. the renal pelvis divides into 2 or 3 major calyces
C. major calyces divide into 2 or 3 minor calyces
D. unlike lateral calyces, polar calyces are often paired
Answer : D

6. Which of the following lab results indicates prerenal failure?
A. serum BUN : creatinine > 20
B. urine [Na] < 30 mEq/L
C. Na excretion fraction < 1
D. all of the above
Answer : D

7. At which week of gestation do the primordial germ cells migrate to form the genital ridges?
A. third
B. fourth
C. fifth
D. seventh
Answer : C

8. 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

9. Regarding multicystic kidneys, at what age does the compensatory renal growth end?
A. at birth
B. 2 years
C. at puberty
D. none of the above
Answer : B

10. 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

11. To which region does pain, from the left mid ureter, refer to?
A. the loin region
B. the inguinal region
C. the umbilical region
D. the penis or clitoris
Answer : B

12. What increases blood volume and pressure in corpora cavernosa during erection is:
A. increase in sympathetic discharge
B. contraction of ischiocavernosa and bulbocavernosa muscles
C. increase arterial flow and closure of emissary veins
D. shunting of blood from the dorsal to the central cavernosal artery
Answer : C

13. 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

14. Which organism is capable of proliferation in the urine and causing urethritis?
A. Ureaplasma urealyticum
B. Chlamydia trachomatis
C. E. coli
D. Neisseria gonorrhea
Answer : A

15. What is the function of PSA in semen?
A. increases semen volume
B. has antimicrobial activity
C. liquefies the seminal coagulum
D. decreases semen pH
Answer : C

16. What is the most frequent anomaly associated with multicystic renal dysplasia?
A. ureteral atresia
B. vesicoureteral reflux
C. ureteropelvic junction obstruction
D. ureteral duplication
Answer : A

17. Which of the following contributes second to the seminal fluid by volume?
A. seminal vesicles
B. the prostate
C. testes
D. bulbourethral glands
Answer : B

18. What is the appropriate intravenous maintenance fluid for a 16 kg girl?
A. 43 ml/hr of normal 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

19. Which type of urinary casts are solidified TammHorsfall mucoproteins secreted from the tubular epithelial cells of individual nephrons?
A. granular
B. hyaline
C. waxy
D. pigment
Answer : B

20. 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

21. 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

23. On tracing the IVU dye down, in a dilated ureter, the dilation stops at a level then continues as a normal calibre ureter. What could the pathology be?
A. lower ureteral stricture
B. ureteral valve
C. modified Lich-Gregoire ureteral reimplantation
D. residual dilation of hydroureter
Answer : B

24. Which of the following is NOT a cause of hypocitraturia?
A. high protein diet
B. hypokalaemia
C. proximal renal tubular acidosis
D. idiopathic
Answer : C

25. What causes ureteral dilation during pregnancy is:
A. mechanical compression by the gravid uterus
B. physiological increase urine flow during pregnancy
C. elevated levels of progesterone
D. reflex inhibition of ureteral contractions
Answer : A

26. Which medicine(s) might enhance hypoprothrombinemic effect on oral anticoagulants?
A. allopurinol
B. aminoglycosides
C. cimetidine
D. all of the above
Answer : D

27. Where is Santorini plexus located?
A. at either side of the prostate
B. in the pubo-prostatic space
C. anterior to the seminal vesicles
D. posterior to the vaso-epididymal junction
Answer : B

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

29. Which hormone measures testicular germ cell function best?
A. LH
B. FSH
C. HCG
D. none of the above
Answer : B

30. When should a 70 yrs. man with 40 ml prostate volume, and total PSA of 2.0 ng/ml, go for a prostate biopsy?
A. if PSA reading had exceeded 2.7 ng/ml over 12 months
B. if free PSA reading was less than 0.4 ng/ml
C. if total PSA reading was greater than 8 ng/ml
D. any of the above
Answer : D

31. Which statement is false concerning the gubernaculua?
A. degenerate after birth
B. called the caudal genital ligaments
C. help guide the testes down through the inguinal canals
D. represent undifferentiated mesenchyme
Answer : A

32. What is the best initial therapy for hyponatremic dehydration?
A. administration of hypertonic saline
B. administration of crystalloid
C. administration of normal saline
D. administration of ringer lactate
Answer : C

33. Which of the following is NOT a part of the urogenital diaphragm structures?
A. perineal membrane
B. deep transverse perineal muscle
C. urethral sphincter
D. Camper`s fascia
Answer : D

34. Which ?- adrenergic receptor subtype mediates smooth muscle contraction of the prostate?
A. ?1-A
B. ?2-A
C. ?1-B
D. ?2-B
Answer : A

35. All of the following develop from the mesonephric ducts, EXCEPT:
A. vas deferens
B. seminal vesicles
C. appendix epididymis
D. appendix testis
Answer : D

36. What is the best method to evaluate calcium levels in the urine?
A. from early morning urine sample
B. comparing urine and serum calcium at a given time
C. performing 24 urine collection
D. from a mid-stream urine sample
Answer : C

37. 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

38. Which of the following is (are) direct branch(es) of the abdominal aorta?
A. median sacral artery
B. inferior phrenic arteries
C. gonadal arteries
D. all of the above
Answer : D

39. The epithelial component of the prostate consists of all of the following, EXCEPT:
A. basal cells
B. intermediate cells
C. tubulo-columnar cells
D. neuroendocrine cells
Answer : C

40. What antibiotic could result in red man syndrome?
A. vancomycin
B. clindamycin
C. streptomycin
D. tobramycin
Answer : A

41. Which organ contributes most to the seminal fluid volume?
A. testes
B. prostate
C. seminal vesicles
D. bulbourethral glands
Answer : C

42. 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

43. Which of the following is NOT a component of the normal semen?
A. zinc
B. fructose
C. prostate-specific antigen
D. alkaline phosphatase
Answer : D

44. Which of the prostate medications coul result in retrograde ejaculation?
A. tamsulosin
B. doxazosin
C. dutasteride
D. alfuzosin
Answer : A

45. In which condition can NOT creatinine level be 1200 mg/dL?
A. an aspirate of pelvic urinoma
B. in untreated end-stage renal failure disease
C. a sample from a wound drain after pyeloplasty
D. a sample from suprapubic catheter
Answer : B

46. Which part of the prostate is traversed by the ejaculatory duct:
A. central zone
B. peripheral zone
C. transitional zone
D. fibromuscular stroma
Answer : A

47. How does estrogen prevent lower UTI in postmenopausal women?
A. increasing vaginal secretions
B. decreasing vaginal pH
C. increasing normal vaginal flora
D. decreasing bacterial adherence
Answer : B

48. What causes Cushing`s disease is:
A. bilateral adrenal hyperplasia
B. pituitary over secretion of ACTH
C. exogenous administration of glucocorticoids
D. immune-mediated disease
Answer : B

49. Which lab results indicate poor prognosis of male infertility?
A. azoospermia; normal FSH; increase LH
B. azoospermia; decrease FSH; normal LH
C. oligospermia; increase FSH; normal LH
D. oligospermia; normal FSH; decrease LH
Answer : C

50. In which organelle in Leydig cell does testosterone synthesis take place?
A. ribosome
B. mitochondria
C. Golgi apparatus
D. endoplasmic reticulum
Answer : D