Test directory: Potassium, 24 Hr Urine

Ordering Code5210
Test NamePotassium, 24 Hr Urine
Preferred SpecimenUrine, 24 Hour
Preferred Container24 Hour Urine Container
Optimum Volume0.5 mL
Collection InstructionsKeep refrigerated during collection. Do not include first morning specimen; collect all subsequent voidings. The last sample collected should be the first morning specimen voided the following morning at the same time as the previous morning's first voiding. Do NOT add preservatives. Record entire 24 Hr volume and collection time on container & requisition. Do NOT add preservatives.
Handling InstructionsSend a well-mixed, 50 mL centrifuged aliquot of specimen.
Transport RequirementsOahu: Refrigerated
Airline: Refrigerated
Specimen StabilityRefrigerated: 7 Days
Rejection CriteriaContaminated, Preservatives used, Specimen older than stability limits, Received ambient
Avail. StatNO
Analytic Time1 Day
MethodologyIon Selective Electrode (ISE)