Citric Acid (Citrate), 24 hour Urine
Alternate Names
016865 LC
SoftLab Order Code
CITR
Epic Order Name
CITRIC ACID (CITRATE), URINE, REF LAB LC 016865
Epic Order ID
LAB377
Laboratory
Reference Lab
Sample Type
Urine
Collection Container
Urine - 24 hour container - HCl perservative
Collecting Volume
2.0 mL aliquot
Minimum Collecting Volume
1.0 mL aliquot (will not permit repeat testing)
Storage or Stability
Refrigerated
Causes for Rejection
Boric Acid used as a preservative (Boric acid >=1250 mg/dL may cause citrate results to be reduced by approximately 30%); Multivitamin >=397.5 mg/dL (estimated as 1 pill per day) may cause citrate results to be unmeasureable.
Patient Preparation
Instructions
Collect 24-hour urine with 30 mL 6N HCl. CAUTION: Strong acid. Mix well. Final pH should be between 1-3