Life-Threatening Hyperkalemia in Horses

The two main causes of hyperkalemia include failure of the kidneys to remove potassium (which gets excreted in the urine) and abnormal potassium release from cells. Horses with a history of hyperkalemic periodic paralysis (HYPP, a genetic muscle disorder of Quarter Horses), compromised kidney function, or massive cellular damage (due to injury or disease) are at greater risk of developing hyperkalemia, said Fielding.

 

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