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Item Value
Approval req'd? No
Available Stat? No
Test code TRAZ
Performed by Quest
Sendout? Yes
Method HPLC
Collection Instructions Do not collect in serum separator tube (SST; Gold top)
Container type Red top or Lavender top (Gold top NOT acceptable),
Amount to Collect 3 mL blood
Sample type Serum or EDTA plasma
Preferred volume 1 mL serum or plasma
Min. Volume 0.5 mL serum or plasma
UCSF Rejection Criteria Collected in Gold top.
Processing notes Refrigerate serum. Order Quest # 4732X. For B&T patients order LabCorp test #071688
Units ng/mL
Normal range
Therapeutic 800-1600 ng/mL
Synonyms Desyrel
Stability Room temperature 1 week, refrigerated 2 weeks, frozen at -20C 2 months
Turn around times Test run Thursday AM only. Turnaround time: 3-10 days.
Additional information Some patients respond to substantially lower levels.
CPT coding 80299-90
LOINC code 4064-2
Last Updated 10/28/2013 11:49:01 AM
Entry Number 945
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