4 doctors weighed in:
How will I know if my potassium levels are too low or high?
4 doctors weighed in

Dr. Tarek Naguib
Internal Medicine - Nephrology & Dialysis
2 doctors agree
In brief: Blood test
High and low blood levels of potassium may actually have similar symptoms e.
g. Muscle fatigue or cramps. There is no substitute for blood test. Taking excessive amounts of otc potassium pills for cramps is dangerous since if you have high levels of blood potassium it may be compounded causing heart muscle problems.

In brief: Blood test
High and low blood levels of potassium may actually have similar symptoms e.
g. Muscle fatigue or cramps. There is no substitute for blood test. Taking excessive amounts of otc potassium pills for cramps is dangerous since if you have high levels of blood potassium it may be compounded causing heart muscle problems.
Dr. Tarek Naguib
Dr. Tarek Naguib
Thank
Dr. Jason Cogdill
Internal Medicine - Nephrology & Dialysis
In brief: Testing
Other than a blood test there is not a reliable way to know.
Ekgs are used too but they aren't specific and don't catch everything. By the time someone has a obvious side effect to a very very high or very very low potassium level it is likely life threatening. Symptoms often associated with mild potassium abnormalities are common and correctioning potassium level doesn't always resolve them.

In brief: Testing
Other than a blood test there is not a reliable way to know.
Ekgs are used too but they aren't specific and don't catch everything. By the time someone has a obvious side effect to a very very high or very very low potassium level it is likely life threatening. Symptoms often associated with mild potassium abnormalities are common and correctioning potassium level doesn't always resolve them.
Dr. Jason Cogdill
Dr. Jason Cogdill
Thank
Get help from a real doctor now
Dr. Peter Kurzweil
Board Certified,
46 years in practice
16M people helped
Continue
107,000 doctors available
Read more answers from doctors