Chemistry Specimen Processing

From MedLabWiki
Analyte Specimen Type Collection Media Collection Notes Reference Interval
Creatinine Urine, 24 hour
Blood serum Lithium heparin
Urea Blood serum or plasma Lithium heparin 2.1 - 7.1 mmol/L
Urine, random Use thymol preservative and refrigerate
Urine, 24 hour Use thymol preservative and refrigerate 430 - 710 mmol/day
Uric Acid Blood serum or plasma Lithium heparin
Urine, 24 hour
Urinalysis Urine, first morning midstream clean-catch preferred Fresh samples <2h old