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Grab our free cheatsheet covering the 63 Must Know Labs for nurses right here: http://www.NURSING.com/labs Listen to all the episodes at: https://www.NURSING.com/labspodcast/ View this post on our blog: https://www.NURSING.com/potassium-k/ Potassium (K+) Normal: 3.5 - 5.0 mEq/L Indications: Evaluate: o Electrolyte imbalances o Cardiac arrhythmias Monitor patients who are: o Acidotic o Receiving diuretic therapy Description: Potassium (K+) is the most abundant intracellular cation and plays a vital role in the transmission of electrical impulses in cardiac and skeletal muscle. It plays a role in acid base equilibrium. In states of acidosis hydrogen with enter the cell as this happens it will force potassium out of the cell, a 0.1 decrease in pH will cause a 0.5 increase in K+. What would cause increased levels? Renal failure Hypoaldosteronism Addison disease Injury to tissues Diabetes Mellitus (DM) Ketoacidosis Hyperventilation Acidosis Infection Dehydration Burns What would cause decreased levels? Hyperaldosteronism Excess insulin Alkalosis Diarrhea Vomiting Cystic Fibrosis Cushing Syndrome