A 41-year-old female asked:
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over the past 18months my potassium levels keep dropping. friday was 2.6. i have idc breast cancer & pap thyroid cancer also. why would this happen?

2 doctor answers
Dr. Joe Lee
Dr. Joe Lee answered
Specializes in Physical Medicine and Rehabilitation
Cancer & low K: Low potassium can occur often in cancer patients. This can be due to the cancer, the cancer treatment, inadequate potassium intake, losses through the kidneys or another cause. It needs to be evaluated, and the cause of the low potassium addressed if possible.
Answered on Sep 16, 2014
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Dr. Olakitan Akinjagunla
Specializes in Internal Medicine
Multiple factors: Your potassium may be low for 3 different reasons. You may not be taking enough, losing it in your stool-diarrhea or urine due to the state of your kidney function or medications and sweating. Your magnesium may also be low and would prevent the correction of your potassium even with supplements. These are things to discuss with your physician to get to the cause.
Answered on Sep 16, 2014
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