Lab Test : Potassium

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Alternate:K
Includes:Potassium
Department:Chemistry
Phone:(937) 641-3428
SQ Code:K
Available:Daily, 24 hours
Turnaround:Routine: 3 hours, STAT: 30 minutes
Specimen:Blood
Volume:0.3 mL
Container:3 mL green top tube or green microtainer (sodium heparin)
Temperature:Transport to laboratory within 30 minutes.
Rejection:Greater than 1 hour in transport. Gross hemolysis.
Normal:Age
0 days:4.5-7.2 mmol/L
1 day: 5.0-7.7 mmol/L
2 days: 4.0-6.4 mmol/L
14 days: 4.0-6.2 mmol/L
3 months: 3.7-5.6 mmolq/L
16 years:3.5-5.3 mmol/L
Uses:Evaluation of electrolyte balance. Must be followed in patients on diuretic therapy and with renal diseases, especially in salt losing nephropathy.
Limitations:Hemolysis increases potassium results.
Method:Indirect ISE
 

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