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WebMD: What is Hypokalemia?
If you have hypokalemia, that means you have low levels of potassium in your blood. Potassium is a mineral your body needs to work normally. It helps muscles to move, cells to get the nutrients they need, and nerves to send their signals.
https://www.webmd.com/digestive-disorders/hypokalemia
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Low blood potassium: MedlinePlus Medical Encyclopedia
Low blood potassium level is a condition in which the amount of potassium in the blood is lower than normal. The medical name of this condition is hypokalemia.
https://medlineplus.gov/ency/article/000479.htm
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Cleveland Clinic: Low Potassium Levels (Hypokalemia)
Learn why you might have low blood potassium levels, also called hypokalemia, from Cleveland Clinic. Read more about causes, symptoms, treatment, and foods that provide potassium.
https://my.clevelandclinic.org/health/diseases/17740-low-potassium-levels-in-your-blood-hypokalemia
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Hypokalemia (Low Level of Potassium in the Blood) - Hormonal and Metabolic Disorders - Merck Manuals Consumer Version
Hypokalemia (Low Level of Potassium in the Blood) - Learn about the causes, symptoms, diagnosis & treatment from the Merck Manuals - Medical Consumer Version.
https://www.merckmanuals.com/home/hormonal-and-metabolic-disorders/electrolyte-balance/hypokalemia-low-level-of-potassium-in-the-blood
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NORD: Hypokalemia
Hypokalemia is a metabolic imbalance characterized by extremely low potassium levels in the blood. It is a symptom of another disease or condition, or a side effect of diuretic drugs. The body needs potassium for the contraction of muscles (including the heart).
https://rarediseases.org/rare-diseases/hypokalemia/
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Potassium Disorders: Hypokalemia and Hyperkalemia - American Family Physician
Hypokalemia and hyperkalemia are common electrolyte disorders caused by changes in potassium intake, altered excretion, or transcellular shifts. Diuretic use and gastrointestinal losses are common causes of hypokalemia, whereas kidney disease, hyperglycemia, and medication use are common causes of hyperkalemia. When severe, potassium disorders can lead to life-threatening cardiac conduction disturbances and neuromuscular dysfunction. Therefore, a first priority is determining the need for urgent treatment through a combination of history, physical examination, laboratory, and electrocardiography findings. Indications for urgent treatment include severe or symptomatic hypokalemia or hyperkalemia; abrupt changes in potassium levels; electrocardiography changes; or the presence of certain comorbid conditions. Hypokalemia is treated with oral or intravenous potassium. To prevent cardiac conduction disturbances, intravenous calcium is administered to patients with hyperkalemic electrocardiography changes. Insulin, usually with concomitant glucose, and albuterol are preferred to lower serum potassium levels in the acute setting; sodium polystyrene sulfonate is reserved for subacute treatment. For both disorders, it is important to consider potential causes of transcellular shifts because patients are at increased risk of rebound potassium disturbances.
https://www.aafp.org/afp/2015/0915/p487.html