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Test Code:
POTU

Order Name:
Potassium (Random Urine)

 
Useful For:
Determining the cause for hyper- or hypokalemia
 
Methodology:
 Ion-selective electrode diluted (Indirect)
 
AliasesName:
K+ (Potassium), Random urine
 
 
 
Test Code:
POTU

Order Name:
Potassium (Random Urine)

 
Collection Specimen Or Container:
Urine, Clean container 
 
Specimen Testing Type:
Urine, minimum volume 10 mL
 
Sub Mission Container:
Clean container
 
Specimen Stabillity:
Specimen Type Temperature Time
Random urine Refrigerated, 2oC to 8oC 2 months
Frozen, -20oC 12 months
 
 
 
Test Code:
POTU

Order Name:
Potassium (Random Urine)

 
Method detail:
 Ion-selective electrode diluted (Indirect)
 
Schedule:
Tested daily (24 hours)
 
Turnaround Time:
Collected specimen to report within 1.5 hours (90 mins)
 
Performing Location:
Chemistry, Laboratory Department Tel. 13224
 
Specimen Retention Time:
7 days
 
 
 
Test Code:
POTU

Order Name:
Potassium (Random Urine)

 
 
Clinical Information:
Potassium is the major intracellular cation. The concentration of potassium in the erythrocytes is approximately 23 times the concentration in plasma. For this reason, only unhemolyzed samples must be used. Decreased levels of extracellular potassium are characterized by weakness in the muscles, irritability, paralysis, accelerated heartbeat, and eventually cardiac arrest, and may be caused by a poor intake of potassium in the diet, by a redistribution of extracellular potassium, and by an increased loss of body fluids
rich in potassium. Abnormally elevated levels of extracellular potassium produce mental confusion, general weakness, numbness, flaccid paralysis in the extremities, a slowed heart rate, and eventually collapse of the peripheral vascular system and cardiac arrest. Causes of increased potassium levels may be linked to
inappropriate intravenous therapy, dehydration, shock, diabetic ketoacidosis, and severe burns.
 
Interpretation:
Hypokalemia reflecting true total body deficits of potassium (K+) can be classified into renal and nonrenal losses based on the daily excretion of K+ in the urine.
 
Clinical Reference:
  1. Manufacturer’s reagent package insert, Architect® ICT (Na+, K+, Cl-) Sample Diluent, Abbott Laboratories, Diagnostic Division, Abbott Park IL 60064 , May 2016.
  2. http://www.mayomedicallaboratories.com (Retrieved: 01 Jan 2019)