Test Details
Mnemonic
UVMA
Ordering Code
1007138
CPT-4 Code(s)
84585, 82570
Specimen Information
Collect
24 hour urine. The bladder must be emptied at the time the collection is to begin, and this urine is discarded. Thereafter all urine must be collected until the end of the scheduled time. Collect urine with 25 mL of 6N HCl at start of collection to maintian pH between 1 and 3. Refrigerate urine during collection (critical). Mix the collection well before removing aliquot.
Specimen Preparation
Send 25.0 mL urine in a screw capped plastic urine container. Record total volume on container label.
Alternate Specimen
Alternate method of 24 hour collection WITH PRESERVATIVE: Refrigerate urine during collection (critical) and add 25.0 mL 6N HCl to the entire collection within 4 hours of collection completion. Mix collection well, and check pH to ensure pH is between 1 and 3. Send a 25.0 mL urine aliquot refrigerated in a screw-capped plastic urine container. Record total volume on container label.
Alternate method of 24 hours collection WITHOUT PRESERVATIVE: Collect 24 hours urine and keep refrigerated throughout collection. Mix well and send 25.0 mL urine refrigerated in a screw-capped plastic urine container. Record total volume on container label.
Alternate method of 24 hours collection WITHOUT PRESERVATIVE: Collect 24 hours urine and keep refrigerated throughout collection. Mix well and send 25.0 mL urine refrigerated in a screw-capped plastic urine container. Record total volume on container label.
Minimum Volume
10.0 mL
Transport Temperature
Refrigerated
Rejection Criteria
Samples with pH <1
Stability
With preservative:
Room temperature: 10 days
Refrigerated: 14 days
Frozen: 1 year
Without preservative:
Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 14 days
Room temperature: 10 days
Refrigerated: 14 days
Frozen: 1 year
Without preservative:
Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 14 days
Methodology
High Performance Liquid Chromatography
Reference Range
3-5 years: 1 - 2.6 mg/day
6-9 years: 2.0 - 3.2 mg/day
10-15 years: 2.3 - 5.2 mg/day
≥16 years: 1.8 - 6.7 mg/day
Creatinine:
Males: 1.0 - 2.0 g/24 hours
Females: 0.8 - 1.8 g/24 hours
6-9 years: 2.0 - 3.2 mg/day
10-15 years: 2.3 - 5.2 mg/day
≥16 years: 1.8 - 6.7 mg/day
Creatinine:
Males: 1.0 - 2.0 g/24 hours
Females: 0.8 - 1.8 g/24 hours
Performing Laboratory
Warde Medical Laboratory
New York DOH Approval Status
Yes