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Methodology: Chemiluminescence (CL)
Edit Date: 4/18/2010
Performed: Daily
Released: Same day as tested
CPT Code: 83003 x2
Specimen Collection Details
Collection: One 7.5 mL serum separator tube (SST) for each specimen. Also acceptable: One 5 mL red top tube. Fasting morning specimen is recommended. Capillary specimens should be obtained with Terumo T-MG Capiject tubes and separated immediately. Frozen specimen preferred, but refrigerated specimen is acceptable if testing can be assayed within 8 hours. If multiple tests are ordered, send a separate specimen for this test. Label each with date and time drawn.
Handling: Allow to clot, centrifuge and separate serum from cells immediately. Freeze. Allow no more than one freeze/thaw cycle.
Stability: 8 hours refrigerated at 2-8° C or 2 months frozen at -20° C.
Standard Volume: 0.5 mL serum for each specimen.
Minimum Volume: 100 µL serum for each specimen.
Transport: Refrigerated if received in laboratory within 8 hours of collection, or frozen on dry ice.
Comments: See also: Growth Hormone (40460), Growth Hormone Stimulation, 3 Specimens (40466), or Growth Hormone Stimulation, 4 Specimens (40467).
Rejection Criteria: Specimen frozen and thawed more than once; refrigerated specimen received in laboratory more than 8 hours after collection.

PeaceHealth Laboratories