Potassium (K)

NamePotassium
Tube TypeSerum (Gold top)
Reporting Unitsmmol/L
Reference Range<4 weeks
4 weeks – 1 year
1 year – 16 years
16+ years
3.4 – 6
3.5 – 5.7
3.5 – 5
3.5 – 5.3
Analytical Range1.5 – 10
AvailabilityNDDH (24/7)
Target turnaround time2 hours
Special requirements & notes
Patient preparationN/A
Volume required1 tube (4ml)
If delayed transport to lab, store:Centrifuged, in refrigerator
Factors affecting result interpretationHaemolysis invalidates result.

If patient platelets are raised, it may be advisable to repeat the request on a lithium heparin (green) sample.

Time limit for add on test4 days
Pathology disciplineBiochemistry
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Posted in Assay.

Last updated: July 2, 2019