POTASSIUM,RANDOM URINE

Code
500.2800
Name
POTASSIUM,RANDOM URINE
Category
None
Department
Chemistry
Start Date
Expiration Date
Synonyms
K
CPT Codes
84133
Site
Main Lab
Reference Test
ATLAS Test Code

Specimen Information

Type

Urine, random

Volume

10.0 ml

Transport Info

Room Temperature
14 day stability

Refrigerated
14 day stability

Frozen (Freeze Only once)
stable

Fasting Required?
False
Patient Instructions

Reference Range

Reference ranges not available for random urine.

Methodology

Ion-selective Electrode (ISE)

Clinical Significance

Renal function test useful in disorders of aldosterone secretion; evaluate electrolyte balance, acid-base balance. Renal loss greater than 30.0 mEq/day in a hypokalemic, hypertensive patient may indicate primary aldosteronism. Lower values are seen with use of laxatives, enemas, and diuretics.

The role of electrolytes in the human body is manifold. There are almost no metabolic processes that are not dependent on or affected by electrolytes. Among other functions of the electrolytes are maintenance of osmotic pressure and water distribution in the various body fluid compartments, maintenance of the proper pH, regulation of the proper function of the heart and other muscles, involvement in oxidation-reduction reactions, and participation in catalysis of cofactors for enzymes.

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