Why do burn patients enjoy increased potassium within urine?
Answers: Normally, potassium is an intracellular electrolyte. Sodium is primarily an extracellular ion.
Cellular destruction releases intracellular ions like potassium into the extracellular spaces such as the blood. The blood after transfers potassium into the urine to establish electrolytic homeostasis.
I would have to disagree next to the above answer.
That isn't how the kidney works nor is there typically adequate cellular lysis close enough to big vessel to allow dumping of potassium before the cell just cook.
With burns, the body go into shock and responds as if it has lost a great deal of fluid. The kidneys respond to this by releasing renin which activates enzymes to gross angiotensin II which then stimulates release of aldosterone. Aldosterone is a hormone that act on the kidney to increase resorptions of sodium (and there for marine since water follows sodium). In charge to resorb sodium from the filtered blood (i.e. urine), cell pump sodium into the cell and potassium out of the cell.
Therefore, there is more potassium contained by the urine and less sodium surrounded by the urine. That means near is less potassium surrounded by the serum.
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