Internal Potassium balance

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Q) If ph >7.4, How much does plasma potassium concentration change for every 0.1 unit increase of the extracellular pH ? a) Potassium decrease by 0.3meq/l b) K+ increase by 0.3 meq/l c) Potassium decrease by 1.5 meq/l d) K+increase by 1.5 meq/l Free answer a Acid-base disturbances cause potassium to shift into and out of cells. This is called internal potassium balance and was discovered in 1956. In alkalosis (increase in ph,) K+ falls and in Acidosis potassium concentration will increase. For every 0.1 fall in ph, K+ increases by 0.3-0.6 meql/l Metabolic acidosis- in a plasma potassium concentration that is elevated in relation to total body stores.  Ref