Potassium (Feline)

Also known as:K

Reference Range

Critical Low

<2.5

mEq/L

Reference Range

3.5-5.8

mEq/L

Optimal Range

3.8-5.5

mEq/L

Critical High

>7.5

mEq/L

Potassium is vital for your cat's heart health and muscle function.

Low

Low potassium is very common in cats with chronic kidney disease and can cause muscle weakness and a head-drop posture.

What to do:

Your vet will likely prescribe potassium supplementation and a kidney-supportive diet.

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Feline Potassium: 3.0 mEq/L (Low)

Normal

Potassium is vital for your cat's heart health and muscle function.

What to do:

No action needed.

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Feline Potassium: 4.2 mEq/L

High

High potassium can occur with urinary obstruction (blocked cat), noticeable kidney failure, or medications.

What to do:

If your cat is straining to urinate, this is a life-threatening emergency requiring immediate veterinary care.

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Feline Potassium: 6.5 mEq/L (High)

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