| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Uric Acid
MessageChemistry
Test Code
LAB141
CPT Codes
84550
Preferred Specimen
Light green top tube (lithium heparin plasma)
Minimum Volume
Whole blood: 600 uL (one full light-green-top microtainer or two full red-top microtainers).
Serum/plasma: 300 uL plasma.
Serum/plasma: 300 uL plasma.
Other Acceptable Specimens
Gold top (serum separator tube) or Red Top
Instructions
Serum acceptable.
LAB: Separate specimen within 4 hours of collection. Ambient: up to 3 days. Refrigerated: 5 days. Frozen: 6 months.
*IMPORTANT COLLECTION NOTE for patients on ELITEK (rasburicase):
ELITEK will cause enzymatic degradation of the urice acid in blood samples left at Ambient:. Blood must be collected into pre-chilled tubes containing heparin anticoagulant and immediately immersed and maintained in an ice water bath. Sample must be assayed within 4 hours of sample collection.
LAB: Separate specimen within 4 hours of collection. Ambient: up to 3 days. Refrigerated: 5 days. Frozen: 6 months.
*IMPORTANT COLLECTION NOTE for patients on ELITEK (rasburicase):
ELITEK will cause enzymatic degradation of the urice acid in blood samples left at Ambient:. Blood must be collected into pre-chilled tubes containing heparin anticoagulant and immediately immersed and maintained in an ice water bath. Sample must be assayed within 4 hours of sample collection.
Specimen Stability
Ambient: up to 3 days.
Refrigerated: 5 days.
Frozen: 6 months
Refrigerated: 5 days.
Frozen: 6 months
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Grossly Hemolyzed, contaminated, not enough volume
Setup Schedule
Everyday
Report Available
Same day
Limitations
Hydralazine is used as an antihypertensive agent. Interference tests show hydralazine causes
approximately 16% negative bias in serum per 1.0 mg/dL of hydralazine
approximately 16% negative bias in serum per 1.0 mg/dL of hydralazine
Reference Range
Males: 3.5 - 8.5 mg/dl
Females: 2.5 - 6.2 mg/dl
Females: 2.5 - 6.2 mg/dl
