LOINC long common name : Potassium [Mass/volume] in Red Blood Cells;
LOINC short name : Potassium RBC-mCnc;
LOINC description : 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;
Has component