Low Potassium (cont.)
Low Potassium Diagnosis
Sometimes the cause of low potassium is not clear. Your doctor may perform certain tests to rule out other conditions such as renal tubular acidosis, Cushing syndrome, and hypocalcemia.
- Blood tests check potassium level, kidney function (BUN and creatinine), glucose, magnesium, calcium, and phosphorous if an electrolyte imbalance is suspected. Because low potassium is known to affect heart rhythms (arrhythmias), a doctor may order a digoxin (Lanoxin) level if you are taking a digitalis preparation.
- ECG or a heart tracing is done to detect electrical changes in the heart and certain types of irregular heart rhythms that may be caused by low potassium.
Must Read Articles Related to Low Potassium
Acute Kidney Failure
Kidney failure, or the ability of the kidneys to filter water and waste is caused by prerenal, postrenal, or renal problems with the kidney(s). Symptoms of kidn...learn more >>
Chronic Kidney Disease
Twenty percent of people over the age of 20 years will develop chronic kidney disease in their lifetime. Chronic kidney disease causes are diseases of the kidne...learn more >>
Dehydration in Adults
Dehydration occurs when the loss of body fluids (mostly water), exceeds the amount that is taken in. Causes of dehydration include fever, vomiting, diarrhea, di...learn more >>
Patient Comments & Reviews
The eMedicineHealth doctors ask about Low Potassium (Hypokalemia):