Potassium [Mass/volume] in Red Blood Cells

Potassium RBC-mCnc

Definition

Among its many physiological functions in the body, potassium controls heart function and subsequently blood pressure. Patients with hypertension and those who may develop it have been found to have lower intracellular potassium levels than patients with normal blood pressure. The measurement of intracellular potassium is a useful marker to predict the risk, development and treatment of patients with hypertension.( http://pubs.acs.org/doi/pdf/10.1021/ac900776d) Calculation: Hct= a(1-R)/a+R(b-a) where 'a' is the fraction of water in the plasma (typically a=0.93), 'b' is the fraction of water inside the erythrocytes (typically b=0.65), 'R' ratio of sodium ion concentration measured before and after lysing the RBCs

Chemistry; Erythrocytes; k; K+; Level; Mass concentration; Point in time; Potass; QNT; Quan; Quant; Quantitative; Random; Red blood cells; Red blood corpusles