Vitamin deficiency seen in short bowel syndrome is?
**Core Concept**
Short bowel syndrome is a condition where a significant portion of the small intestine is missing or not functioning properly, leading to malabsorption of nutrients. The small intestine is responsible for the majority of nutrient absorption in the body, and its dysfunction can result in various vitamin deficiencies.
**Why the Correct Answer is Right**
The most common vitamin deficiency seen in short bowel syndrome is vitamin B12 deficiency. This is because the ileum, the last part of the small intestine, is responsible for the absorption of vitamin B12. In short bowel syndrome, the ileum may be bypassed or not functioning properly, leading to malabsorption of vitamin B12. Vitamin B12 is essential for the production of red blood cells and the maintenance of the nervous system.
**Why Each Wrong Option is Incorrect**
* **Option A:** While zinc deficiency can occur in malabsorptive states, it is not the most common vitamin deficiency seen in short bowel syndrome.
* **Option B:** Fat-soluble vitamins (A, D, E, and K) are absorbed in the small intestine, but they are not the most commonly deficient in short bowel syndrome.
* **Option D:** Folate deficiency can occur in malabsorptive states, but it is not as common as vitamin B12 deficiency in short bowel syndrome.
**Clinical Pearl / High-Yield Fact**
In patients with short bowel syndrome, vitamin B12 deficiency should be suspected and treated promptly to prevent megaloblastic anemia and neurological complications.
**Correct Answer:** C.