82722-0
LaboratoryPotassium [Mass/volume] in Red Blood Cells
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
LOINC 6-Axis Classification
Component
Potassium
Property
MCnc
Time Aspect
Pt
System
RBC
Scale Type
Qn
Method Type
N/A
Details
Class
CHEM
Order/Observation
Both
Short Name
Potassium RBC-mCnc
Display Name
Potassium (RBC) [Mass/Vol]
Related Names
Frequently Asked Questions
What is LOINC code 82722-0?
LOINC code 82722-0 identifies "Potassium [Mass/volume] in Red Blood Cells". 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
What does 82722-0 measure?
This code measures Potassium in RBC. It belongs to the CHEM class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.