Free urosurgery MCQ exam model for clinical students

Explanation:

• Calcium oxalate → Correct because it accounts for the majority of kidney stones.

• Uric acid → Incorrect because it is radiolucent and less common.

• Cystine → Incorrect because it is rare and hereditary.

• Struvite → Incorrect because it is infection-related.

• Xanthine → Incorrect because it is extremely rare.

Explanation:

• Benign prostatic hyperplasia → Correct because prostate enlargement commonly obstructs urine flow in elderly men.

• Urethral stricture → Incorrect because it is less common.

• Bladder tumor → Incorrect because it causes hematuria more than obstruction.

• Prostate cancer → Incorrect because it causes obstruction late.

• Neurogenic bladder → Incorrect because it is functional, not obstructive.

Explanation:

• Lower urinary tract symptoms → Correct because frequency, urgency, and poor stream are typical.

• Hematuria → Incorrect because it is occasional.

• Acute urinary retention → Incorrect because it is a late presentation.

• Flank pain → Incorrect because it suggests upper tract disease.

• Fever → Incorrect because it indicates infection.

Explanation:

• Relieve obstruction and preserve renal function → Correct because maintaining kidney function is the main objective.

• Remove organs whenever possible → Incorrect because organ preservation is preferred.

• Avoid minimally invasive techniques → Incorrect because endoscopic surgery is standard.

• Delay intervention → Incorrect because timely treatment prevents damage.

• Focus on cosmetic outcome → Incorrect because function is the priority.

Explanation:

• Urinary tract and male reproductive system → Correct because urosurgery involves kidneys, ureters, bladder, urethra, prostate, and male genital organs.

• Respiratory system → Incorrect because this is thoracic surgery.

• Gastrointestinal system → Incorrect because this is general surgery.

• Nervous system → Incorrect because this is neurosurgery.

• Endocrine system → Incorrect because this is endocrine surgery.

Explanation:

• Seminoma → Correct because it is the most common testicular germ cell tumor.

• Teratoma → Incorrect because it is less common.

• Choriocarcinoma → Incorrect because it is rare and aggressive.

• Yolk sac tumor → Incorrect because it is common in children.

• Leydig cell tumor → Incorrect because it is rare.

Explanation:

• Transurethral resection of prostate → Correct because TURP is the standard definitive procedure.

• Open prostatectomy → Incorrect because it is reserved for very large prostates.

• Laser ablation → Incorrect because it is an alternative technique.

• Balloon dilatation → Incorrect because it is rarely used.

• Medical therapy → Incorrect because it is non-surgical.

Explanation:

• Kidney → Correct because most stones originate in renal calyces.

• Ureter → Incorrect because stones pass through but do not usually form there.

• Urinary bladder → Incorrect because it is less common.

• Urethra → Incorrect because stones are rare here.

• Prostate → Incorrect because calculi are uncommon.

Explanation:

• Urinary tract infection → Correct because it is the most frequent cause of hematuria.

• Renal cell carcinoma → Incorrect because it causes painless hematuria but is less common.

• Bladder cancer → Incorrect because it is an important but less frequent cause.

• Renal stones → Incorrect because they cause hematuria with colicky pain.

• Glomerulonephritis → Incorrect because it is a medical renal cause.

Explanation:

• Bladder cancer → Correct because it is the most common urinary tract malignancy.

• Renal cell carcinoma → Incorrect because it is less common.

• Ureteric cancer → Incorrect because it is rare.

• Prostate cancer → Incorrect because it is male reproductive, not urinary tract lining.

• Testicular cancer → Incorrect because it is germ cell tumor.