eMedicine: Hypokalemia: Clinical article by David Garth, MD explains this condition. Includes blood level ranges, causes, common lab tests, and treatment.
eMedicine: Hypokalemia: Eleanor Lederer, MD discusses why potassium is essential to life. Includes three mechanisms that cause a decrease in serum blood levels, risk factors, common symptoms, and medical care.
Hypokalemia: Penn State Hershey Medical Center article explains low potassium levels, what causes it, who is at risk, how it is diagnosed, and what treatments are used.
Hypokalemia: Defines what this condition is, how it occurs, diagnosis, treatment, prognosis, and prevention.
Hypokalemia: Wikipedia article explains what constitutes low potassium levels, signs and symptoms, causes, diagostic methods, and treatment.
Hypokalemia: Abstract discusses what this condition is, how is occurs, and why it can be dangerous.
Hypokalemia: Brief Mayo Clinic article explains what it is, the causes, and possible effects on the body.
Low Potassium: (Currently listed in Health/Nutrition/Nutrients/Vitamins_and_Minerals/Potassium - more appropriate here.)