Question
The electrolyte abnormality associated with fresh water drowning is
| A. | Hyperkalemia & Hypernatremia |
| B. |
Hypokalemia & Hyponatremia |
| C. |
Hypernatremia & Hypokalemia |
| D. |
Hyponatremia & Hyperkalemia |
Show Answer
|
Correct Answer � D Explanation |
 |
Fresh water drowning is associated with both hyperkalemia and hyponatremia.
Pathophysiology:
-
When fresh water (hypotonic to plasma) enters the alveolar spaces, it is rapidly absorbed into the pulmonary circulation resulting in gross local haemodilution.
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This massive increase in blood volume leads to hemolysis with liberation of potassium. This causes hyperkalemia with corresponding hyponatremia.