Acute complication of Protein-energy malnutrition is
**Core Concept**
Protein-energy malnutrition (PEM) is a condition characterized by inadequate intake of protein and energy, leading to impaired growth, development, and maintenance of bodily functions. PEM can manifest in various forms, including marasmus and kwashiorkor, and is often seen in vulnerable populations such as children, the elderly, and those with chronic illnesses.
**Why the Correct Answer is Right**
The acute complications of PEM arise due to the body's inability to maintain its homeostasis, particularly in the context of infections. One of the hallmark acute complications of PEM is **Kwashiorkor-induced edema**, which occurs due to the impaired synthesis of albumin and other plasma proteins. This, in turn, leads to decreased oncotic pressure and fluid leakage into tissues, resulting in edema. Additionally, PEM impairs the immune system, making individuals more susceptible to infections, which can further exacerbate the condition.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because PEM primarily affects the body's protein stores, leading to muscle wasting and weakness, rather than directly causing **Diabetes Mellitus**.
* **Option B:** This option is incorrect because **Hypothyroidism** is not a direct complication of PEM, although malnutrition can impair thyroid function indirectly.
* **Option C:** This option is incorrect because **Hemorrhagic Diarrhea** is a complication of infectious diseases, not directly related to PEM.
**Clinical Pearl / High-Yield Fact**
A key clinical correlation to remember is that PEM can lead to **Impaired immune function**, making individuals more susceptible to infections such as pneumonia, tuberculosis, and diarrhea.
**Correct Answer: C. Hemorrhagic Diarrhea**