NOT true about fresh water drowning: Kerala 09; KCET 13
**Core Concept**
Freshwater drowning occurs when a person inhales water into the lungs, leading to hypoxia and eventually death. The pathophysiology of freshwater drowning involves the entry of water into the lungs, causing a chemical reaction that leads to pulmonary edema and eventually death.
**Why the Correct Answer is Right**
In freshwater drowning, the entry of water into the lungs causes a chemical reaction that leads to the conversion of sodium ions into hydrogen ions, resulting in acidosis. This acidosis causes the blood vessels in the lungs to become permeable, leading to pulmonary edema. The presence of water in the lungs also causes the release of surfactant, which can lead to alveolar collapse and further impair gas exchange. The combination of acidosis and impaired gas exchange leads to hypoxia and eventually death.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not provided.
* **Option B:** This option is not provided.
* **Option C:** This option is not provided.
* **Option D:** This option is not provided.
**Clinical Pearl / High-Yield Fact**
It is essential to note that the pathophysiology of freshwater drowning is distinct from that of saltwater drowning. In saltwater drowning, the entry of saltwater into the lungs can cause a different set of complications, including hypernatremia and hyperchloremia.
**Correct Answer:** Not provided