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TESTOSTERONE, Serum (direct assay) (087-7515) CPT 4 Code: 84403 Test Order Mnemonic: TESTOST Lab: Clinical Chemistry Request Form: Special Chemistry Form 2 Collection: Routine venipuncture Storage Instructions: Collect and store on ice. Centrifuge the specimen, remove serum from cells within 2 hours of collection. Store serum refrigerated at 2-8C. Freeze serum at –20°C if delivery is >24 hours. Causes for Rejection: Plasma, Severely hemolyzed or lipemic sample, serum not separated from red cells within 2 hours of collection, improper sample handling and storage and blood collected in any anticoagulated tube. See special instructions. Availability: Samples can be delivered to Sample Management, Room 5.136 McCullough, 24 hours per day. Turnaround Time: 24 Hours. Test performed Monday-Friday. Special Instructions: The test can be ordered only once per inpatient admission and once per month for outpatients. Additional requests require the approval of the laboratory director. Specimen: Blood Volume: 2.0 mL blood Minimum Volume: 0.5 mL serum Container: SST (gel barrier) or Red top tube Reference Ranges: Adult Male: 280-880 ng/dL; Adult Female: 10-57 ng/dL Test Method: Chemiluminescence Reviewed/revised March 2008 by D. Davis |
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