A 62 year old female presented with hematuria was found to have Stage II Transitional Cell Carcinoma of bladder. She underwent radical cystectomy and urinary diversion later she devoloped hyperchloremic hypokalemic metabolic acidosis. Which of the following technique is used
**Core Concept**
Transitional Cell Carcinoma (TCC) of the bladder is a common type of bladder cancer. Radical cystectomy followed by urinary diversion is a common treatment approach. Postoperative metabolic disturbances can occur due to changes in urinary composition and gut function.
**Why the Correct Answer is Right**
The development of hyperchloremic hypokalemic metabolic acidosis is likely due to the absorption of urinary chloride ions in the intestine, which leads to a loss of potassium ions. This condition is often seen in patients with urinary diversion, particularly those with a continent cutaneous diversion or an ileal conduit.
The correct answer is **A. Long Loop Nephron Syndrome**.
* **Option A:** Long Loop Nephron Syndrome (LLNS) is a condition characterized by the absorption of urinary chloride ions in the intestine, leading to hyperchloremic hypokalemic metabolic acidosis. This condition is often seen in patients with urinary diversion.
* **Option B:** Hyperchloremic metabolic acidosis is not typically associated with renal tubular acidosis (RTA), which is characterized by impaired acid excretion in the kidneys.
* **Option C:** The development of hyperchloremic hypokalemic metabolic acidosis is not typically due to hyperaldosteronism, which is characterized by excessive aldosterone production leading to sodium retention and potassium loss.
* **Option D:** The development of hyperchloremic hypokalemic metabolic acidosis is not typically due to primary hyperparathyroidism, which is characterized by excessive parathyroid hormone production leading to hypercalcemia and secondary hyperparathyroidism.
**Clinical Pearl / High-Yield Fact**
Patients with urinary diversion are at risk of developing metabolic disturbances, including hyperchloremic hypokalemic metabolic acidosis. Long Loop Nephron Syndrome is a common cause of this condition, and it can be prevented or treated with dietary adjustments and medications.
**Correct Answer:** A. Long Loop Nephron Syndrome