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HelpTest Code LAB149/1775/CRP C-REACTIVE PROTEIN
Specimen Type
PREFERRED: 1 GEL BARRIER SST CLOT TUBE
(SERUM)
ACCEPTABLE: 1 GREEN TOP LITHIUM HEPARIN TUBE
(PLASMA)
Specimen Required
MIN: 0.5 ML SERUM (PREFERRED) OR PLASMA (ACCEPTABLE)
PROCESSING INSTRUCTIONS
INPATIENT: BRING DIRECTLY TO LABORATORY, WITHOUT DELAY.
CENTRAL PROCESSING:
SERUM: ALLOW BLOOD TO CLOT UPRIGHT FOR 30
MINUTES AT ROOM TEMPERATURE, CENTRIFUGE, THEN BRING DIRECTLY TO
OLYMPUS DEPARTMENT.
PLASMA: CENTRIFUGE AS SOON AS POSSIBLE
AFTER COLLECTION AND BRING DIRECTLY TO OLYMPUS DEPARTMENT.
OUTPATIENT:
SERUM: ALLOW BLOOD TO CLOT UPRIGHT FOR 30
MINUTES AT ROOM TEMPERATURE, CENTRIFUGE, THEN REFRIGERATE.
PLASMA: CENTRIFUGE AND SEPARATE PLASMA FROM
BLOOD (INTO A PLASTIC 12 x75 TUBE) AS SOON AS POSSIBLE AFTER
COLLECTION, THEN REFRIGERATE.
METHOD
SPECTROPHOTOMETRY
Specimen Retention Time
7 DAYS
TRANSPORT TEMPERATURE
REFRIGERATED
DAY(S) TEST PERFORMED
DAILY
CPT
86140
LOINC
1988-5
SPECIMEN STABILITY FOR TESTING
ROOM TEMPERATURE OR REFRIGERATED - SST TUBE OR PLASMA SEPARATED FROM RED CELLS: UP TO 7 DAYS
Additional Information
WHEN CRP IS USED TO EVALUATE PATIENTS WITH ARTHRITIS, SERUM IS THE PREFERRED SPECIMEN.