Urology Practice Questions

Q: A 23-year-old male presented with fever, chills, and back pain. He also complained of increased frequency of voiding. Ultrasonography revealed bladder stones. All of the following are true about bladder stones, EXCEPT:

Rare in Indian children. **Explanation:** The correct answer is **A (Rare in Indian children)** because this statement is false. In developing countries like India, endemic bladder stones are historically common among children, particularly boys. These are often associated with a diet high in cereal and low in animal protein, leading to hyperoxaluria. **Analysis of Options:** * **Option A (False/Correct Answer):** Bladder stones are **not rare** in Indian children; they are a classic presentation in pediatric urology in the Indian subcontinent, often linked to nutritional factors. * **Option B (True):** Bladder calculi are significantly more common in men. This is primarily due to **Bladder Outlet Obstruction (BOO)** caused by conditions like Benign Prostatic Hyperplasia (BPH) or urethral strictures, which lead to urinary stasis. * **Option C (True):** Small stones can be managed via **Cystolitholapaxy**, where stones are fragmented and removed through the urethra using a cystoscope. * **Option D (True):** In the majority of cases, a **solitary** bladder stone is the rule, although multiple stones can occur in cases of severe stasis or diverticula. **Clinical Pearls for NEET-PG:** * **Composition:** Most bladder stones are composed of **Ammonium Acid Urate**, Calcium Oxalate, or Uric Acid. * **The "Jackstone" Calculus:** A specific type of calcium oxalate dihydrate stone with a spiked appearance, typically found in the bladder. * **Clinical Presentation:** Characterized by "interruption of urinary stream" and pain referred to the tip of the penis (mediated by the S2-S3 nerve roots). * **Gold Standard Investigation:** Non-contrast CT (NCCT) is the most sensitive, though Ultrasound is often the initial screening tool.

Q: A male has a history of bilateral undescended testes. What is the most likely consequence?

He is likely to be sterile.. ### Explanation **1. Why Option A is Correct:** The primary consequence of bilateral undescended testes (cryptorchidism) is **infertility/sterility**. Normal spermatogenesis requires a temperature approximately 2–3°C lower than the core body temperature. When testes remain in the inguinal canal or abdomen, they are exposed to higher temperatures, leading to progressive degeneration of germ cells and tubular atrophy. While unilateral cryptorchidism carries a lower risk of infertility (~10%), **bilateral** involvement results in a significantly higher risk, with nearly 75–100% of untreated patients becoming sterile. **2. Why the Other Options are Incorrect:** * **Option B:** This is incorrect. Cryptorchidism is the most significant risk factor for **testicular germ cell tumors** (most commonly Seminoma). The risk is 5 to 10 times higher than in the general population. * **Option C:** This is incorrect. While mechanical factors (e.g., short spermatic vessels or narrow inguinal canal) play a role, the pathophysiology is often **multifactorial**, involving hormonal deficiencies (H-P-G axis) and genetic predispositions. * **Option D:** This is incorrect. Psychological well-being is a valid indication for intervention. An empty scrotum can lead to body image issues and anxiety during adolescence, making orchidopexy or prosthetic insertion necessary. **3. NEET-PG High-Yield Pearls:** * **Most common site:** Inguinal canal (specifically just outside the external ring). * **Most common tumor:** Seminoma (overall); however, if the testis is intra-abdominal, the risk of malignancy is higher. * **Ideal age for surgery:** Orchidopexy should ideally be performed between **6 to 12 months** of age to preserve fertility and allow for easier screening of malignancy. * **Orchidopexy** does not eliminate the risk of cancer, but it makes the testis palpable for early detection.

Q: The Hunt-Hess scale is used for the grading of which condition?

Subarachnoid hemorrhage (SAH). **Explanation:** The **Hunt-Hess scale** is a clinical grading system used to assess the severity of a **Subarachnoid Hemorrhage (SAH)** based on the patient’s clinical presentation. It is a critical tool for predicting perioperative mortality and determining the timing of surgical intervention (clipping or coiling). * **Grade I:** Asymptomatic or mild headache. * **Grade II:** Moderate to severe headache, nuchal rigidity, no neurological deficit (except cranial nerve palsy). * **Grade III:** Drowsiness, confusion, or mild focal deficit. * **Grade IV:** Stupor, moderate to severe hemiparesis. * **Grade V:** Deep coma, decerebrate rigidity, moribund appearance. **Analysis of Incorrect Options:** * **Subdural Hematoma (SDH):** Typically assessed using the Glasgow Coma Scale (GCS) and CT imaging (crescent-shaped hematoma) rather than a specific clinical grading scale like Hunt-Hess. * **Meningiomas:** These are graded using the **WHO Classification** (Grade I-III) based on histopathology, not clinical presentation. * **Tuberculosis:** CNS tuberculosis is often graded using the **British Medical Research Council (BMRC)** staging for tuberculous meningitis. **NEET-PG High-Yield Pearls:** 1. **Fisher Scale:** Used alongside Hunt-Hess for SAH, but it is based on **CT findings** to predict the risk of cerebral vasospasm. 2. **Most common cause of SAH:** Trauma (Overall); Rupture of Saccular (Berry) aneurysm (Spontaneous). 3. **Gold Standard Investigation:** Digital Subtraction Angiography (DSA). 4. **Management:** Nimodipine is administered to prevent vasospasm-induced delayed ischemic neurological deficits.

Q: The graph shown in the illustration is known as:

Cystometrogram. ***Cystometrogram*** - A **cystometrogram** is a urodynamic graph that plots **bladder pressure** against **bladder volume** during bladder filling. - Used to assess **bladder compliance** and **detrusor muscle activity** in patients with voiding dysfunction or neurogenic bladder. *Nephrogram* - A **nephrogram** is a radiological imaging study showing the **kidney parenchyma** after contrast administration. - It represents the **nephron phase** of contrast excretion, not a pressure-volume graph. *Pyelograph* - A **pyelograph** (or pyelogram) is an imaging study visualizing the **renal pelvis** and **ureter** using contrast. - It's a **radiological procedure**, not a graphical representation of bladder dynamics. *None of the above* - This option is incorrect as **cystometrogram** accurately describes the urodynamic graph shown. - The graph specifically measures **bladder pressure-volume relationships**, which is the definition of cystometrography.

Q: What is the best treatment for Grade I benign prostate with outflow obstruction?

Transurethral resection. **Explanation:** The management of Benign Prostatic Hyperplasia (BPH) with outflow obstruction depends on the size of the gland and the severity of symptoms. **Transurethral Resection of the Prostate (TURP)** is considered the "Gold Standard" surgical treatment for small to moderate-sized glands (typically <60–80 grams). **Grade I BPH** refers to a small enlargement (usually <25 grams). In cases where medical management fails or outflow obstruction is significant, TURP is the preferred modality because it is minimally invasive, offers excellent functional outcomes, and has a lower morbidity rate compared to open surgeries. **Analysis of Incorrect Options:** * **Retropubic (Millin’s) & Transvesical (Freyer’s) Prostatectomy:** These are open surgical procedures reserved for **large prostates** (typically >80–100 grams) or when there are associated bladder stones/diverticula that cannot be managed endoscopically. * **Androgen Therapy:** This is incorrect. While 5-alpha reductase inhibitors (like Finasteride) reduce DHT levels, "Androgen therapy" (testosterone) would actually worsen BPH symptoms. Medical management usually involves Alpha-blockers or 5-ARIs, but once "outflow obstruction" requires definitive intervention, surgery is indicated. **High-Yield Clinical Pearls for NEET-PG:** * **Gold Standard for BPH:** TURP. * **TURP Syndrome:** Caused by the absorption of glycine (irrigating fluid), leading to dilutional hyponatremia and CNS symptoms. * **Most common complication of TURP:** Retrograde ejaculation (up to 75%). * **Most common late complication:** Urethral stricture or bladder neck contracture. * **Laser of choice:** Holmium Laser Enucleation of the Prostate (HoLEP) is now preferred for very large glands as an alternative to open surgery.

Q: Which of the following is NOT a contraindication for extracorporeal shockwave lithotripsy for renal calculi?

Stone in a calyceal diverticulum. **Explanation:** Extracorporeal Shockwave Lithotripsy (ESWL) is a non-invasive treatment for renal calculi, but its success depends on the ability of the fragmented stones to pass through the urinary tract. **Why "Stone in a calyceal diverticulum" is the correct answer:** A stone in a calyceal diverticulum is considered a **relative contraindication** or a factor for poor clearance, but it is **not an absolute contraindication**. While ESWL can fragment the stone, the narrow neck of the diverticulum often prevents the passage of fragments. However, ESWL may still be attempted for symptomatic relief in specific cases, unlike the other options which pose significant safety risks. **Analysis of Incorrect Options:** * **Pregnancy (Option A):** This is an **absolute contraindication**. Shockwaves can cause fetal injury, placental abruption, or miscarriage. * **Bleeding Disorder (Option B):** Uncorrected coagulopathy is an **absolute contraindication** due to the high risk of life-threatening perinephric hematoma. * **Stone >2 cm (Option C):** Large stones (>2 cm) are a **relative contraindication**. They have a low clearance rate and carry a high risk of *Steinstrasse* (stone street), where fragments obstruct the ureter. Percutaneous Nephrolithotomy (PCNL) is the preferred treatment for stones >2 cm. **High-Yield Clinical Pearls for NEET-PG:** * **Best candidate for ESWL:** Small (<1.5 cm), radiopaque, friable stones (e.g., Calcium oxalate dihydrate) located in the upper or middle calyx. * **Hardest stones to fragment:** Calcium oxalate monohydrate, Cystine, and Brushite stones. * **Anatomical Contraindications:** Distal obstruction (fragments won't pass), uncontrolled UTI, and abdominal aortic aneurysm (risk of rupture). * **Ideal Location:** Lower pole stones have the poorest clearance rates due to gravity.

Q: A 50-year-old male presents with a hard scrotal swelling. Which of the following investigations is NOT indicated?

Testicular biopsy. In a 50-year-old male presenting with a hard scrotal swelling, the primary clinical suspicion is **Testicular Cancer** until proven otherwise. ### **Why Testicular Biopsy is Contraindicated (Correct Answer)** A trans-scrotal testicular biopsy is strictly **contraindicated** in suspected testicular tumors. This is due to the risk of **"Scrotal Seeding"** or **"Tumor Spillage."** The lymphatic drainage of the testis is to the para-aortic lymph nodes, whereas the scrotum drains to the inguinal lymph nodes. Violating the scrotal wall alters the natural lymphatic drainage, potentially spreading the malignancy to the inguinal region and upstaging the disease. ### **Analysis of Other Options** * **Chest X-ray:** Indicated to screen for pulmonary metastases (the most common site of distant spread in germ cell tumors). * **Inguinal Exploration:** This is the standard surgical approach. If a tumor is suspected, a **Radical Inguinal Orchidectomy** is performed. The spermatic cord is clamped at the internal inguinal ring before mobilizing the testis to prevent intraoperative hematogenous spread. * **CT Abdomen:** Essential for staging, specifically to evaluate the **para-aortic lymph nodes**, which are the primary site of nodal metastasis. ### **High-Yield Clinical Pearls for NEET-PG** * **Gold Standard Diagnosis:** Radical Inguinal Orchidectomy (both diagnostic and therapeutic). * **Lymphatic Drainage:** Testis → Para-aortic nodes; Scrotum → Superficial Inguinal nodes. * **Tumor Markers:** Always check AFP, beta-hCG, and LDH before surgery. Note: AFP is *never* elevated in pure seminomas. * **Most Common Type:** Seminoma is the most common testicular tumor in this age group.

Q: Which of the following statements about pyonephrosis is FALSE?

Always unilateral. **Explanation:** **Pyonephrosis** is a surgical emergency characterized by the accumulation of purulent debris (pus) within an obstructed collecting system. **Why Option B is the Correct (False) Statement:** Pyonephrosis is **not always unilateral**. While it is most commonly seen on one side due to a localized obstruction (like a stone), it can be **bilateral** in cases of bladder outlet obstruction (e.g., Benign Prostatic Hyperplasia or Posterior Urethral Valves) or bilateral ureteric involvement (e.g., advanced pelvic malignancy). In medical exams, absolute terms like "always" are frequently markers of false statements. **Analysis of Other Options:** * **Option A (Commonly associated with renal calculi):** This is **True**. Nephrolithiasis is the most common cause of the obstruction that leads to pyonephrosis. * **Option C (Complication of hydronephrosis):** This is **True**. When a pre-existing hydronephrotic kidney (dilated due to obstruction) becomes infected, it transforms into pyonephrosis. * **Option D (Follows acute pyelonephritis):** This is **True**. Severe acute pyelonephritis in the presence of an obstruction can lead to the formation of pus within the renal pelvis. **Clinical Pearls for NEET-PG:** * **Classic Triad:** Fever/chills, flank pain, and a palpable tender mass. * **Diagnosis:** **Ultrasound** is the initial investigation of choice (shows persistent echoes/debris in a dilated system). **CT scan** is the most accurate for identifying the cause of obstruction. * **Management:** It is a **urological emergency**. The priority is urgent decompression via **Percutaneous Nephrostomy (PCN)** or retrograde stenting (DJ stent). Antibiotics alone are insufficient because they cannot penetrate the obstructed, pus-filled system.

Q: A 42-year-old paraplegic woman with a neurogenic bladder requires an indwelling urinary catheter. She develops a urinary tract infection and is seen by a urologist. Radiographic studies demonstrate a large stone that fills and follows the contours of the renal pelvis. The stone is most likely composed of which of the following?

Magnesium ammonium phosphate. **Explanation:** The clinical presentation describes a **Staghorn Calculus** (a stone filling the renal pelvis and calyces) in a patient with a neurogenic bladder and a history of recurrent urinary tract infections (UTIs). **1. Why Magnesium Ammonium Phosphate is correct:** These stones, also known as **Struvite** or **Triple Phosphate** stones, are strongly associated with UTIs caused by **urease-producing bacteria** (e.g., *Proteus mirabilis*, *Klebsiella*, *Pseudomonas*). Urease hydrolyzes urea into ammonia and carbon dioxide, increasing urinary pH (alkaline urine). In this alkaline environment, magnesium ammonium phosphate and carbonate apatite precipitate to form large, branched stones that take the shape of the renal collecting system (Staghorn appearance). Paraplegic patients with indwelling catheters are at high risk due to urinary stasis and frequent colonization by these organisms. **2. Why the other options are incorrect:** * **Calcium salts:** Calcium oxalate is the most common type of renal stone overall, but it typically presents as small, radiopaque stones rather than massive staghorn calculi. * **Cholesterol:** These are found in the gallbladder (gallstones), not the urinary tract. * **Cystine:** These result from an autosomal recessive defect in amino acid transport. While they can occasionally form staghorn shapes, they are much rarer and typically occur in younger patients without the specific context of urease-producing infections. **Clinical Pearls for NEET-PG:** * **Radiopacity:** Struvite stones are **radio-opaque** (though less dense than calcium). * **Microscopy:** Look for **"Coffin-lid"** shaped crystals in the urine sediment. * **Treatment:** Requires complete surgical removal (usually PCNL) because the stone acts as a reservoir for bacteria, leading to recurrent sepsis. * **Chemical composition:** Magnesium Ammonium Phosphate + Carbonate Apatite.

Question 1

A 23-year-old male presented with fever, chills, and back pain. He also complained of increased frequency of voiding. Ultrasonography revealed bladder stones. All of the following are true about bladder stones, EXCEPT:

Accepted Answer

Rare in Indian children

Answer

Most bladder calculi are seen in men

Answer

Small stones can be removed per urethra

Answer

Solitary bladder stone is the rule

Question 2

A male has a history of bilateral undescended testes. What is the most likely consequence?

Accepted Answer

He is likely to be sterile.

Answer

His risk of testicular neoplasm is the same as other males.

Answer

The pathophysiology is merely a mechanical problem in the descent of the testes.

Answer

Intervention for psychological purposes is not a requirement.

Question 3

The Hunt-Hess scale is used for the grading of which condition?

Accepted Answer

Subarachnoid hemorrhage (SAH)

Answer

Subdural hematoma (SDH)

Answer

Meningiomas

Answer

Tuberculosis

Question 4

The graph shown in the illustration is known as:

Accepted Answer

Cystometrogram

Answer

Nephrogram

Answer

Pyelograph

Answer

None of the above

Question 5

What is the best treatment for Grade I benign prostate with outflow obstruction?

Accepted Answer

Transurethral resection

Answer

Retropubic prostatectomy

Answer

Transvesical prostatectomy

Answer

Androgen therapy

Question 6

Which of the following is NOT a contraindication for extracorporeal shockwave lithotripsy for renal calculi?

Accepted Answer

Stone in a calyceal diverticulum

Answer

Pregnancy

Answer

Bleeding disorder

Answer

Stone >2 cm

Question 7

All the following statements are true regarding torsion of testis EXCEPT?

Accepted Answer

Anatomical abnormality is unilateral and contralateral testis should not be fixed

Answer

Prompt exploration and twisting & fixation is the only way to save the torted testis

Answer

Most common between 10 and 25 years of age

Answer

Inversion of testis is the most common predisposing cause

Question 8

A 50-year-old male presents with a hard scrotal swelling. Which of the following investigations is NOT indicated?

Accepted Answer

Testicular biopsy

Answer

Chest X-ray

Answer

Inguinal exploration

Answer

CT abdomen

Question 9

Which of the following statements about pyonephrosis is FALSE?

Accepted Answer

Always unilateral

Answer

Commonly associated with renal calculi

Answer

Is a complication of hydronephrosis

Answer

Follows acute pyelonephritis

Question 10

A 42-year-old paraplegic woman with a neurogenic bladder requires an indwelling urinary catheter. She develops a urinary tract infection and is seen by a urologist. Radiographic studies demonstrate a large stone that fills and follows the contours of the renal pelvis. The stone is most likely composed of which of the following?

Accepted Answer

Magnesium ammonium phosphate

Answer

Calcium salts

Answer

Cholesterol

Answer

Cystine

Urology — MCQs

Urology — MCQs

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