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Promethazine, Serum or Plasma

CPT 80299
Synonyms
  • Anergan®
  • Phenadoz®
  • Phenergan®
  • Promethegan®

Test Details

Methodology

Liquid chromatography/tandem mass spectrometry (LC/MS-MS)

Result Turnaround Time

7 - 10 days

Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.

Use

Therapeutic drug management

Specimen Requirements

Specimen

Serum or plasma

Volume

3 mL

Minimum Volume

0.6 mL

Container

Red-top tube or green-top (heparin) tube. Gel-barrier tubes are not recommended.

Collection Instructions

Serum or plasma should be separated from cells within two hours of venipuncture. Submit serum or plasma in a plastic transport tube.

Reference Range

<150 ng/mL

Storage Instructions

Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen. Specimen is stable for seven days at room temperature, for seven days refrigerated, and for 13 days frozen.

Patient Preparation

Trough levels are most reproducible.

Causes for Rejection

Gel-barrier tubes

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
811539 Promethazine (Phenergan) 808211 Promethazine (Phenergan) ng/ml 3988-3
Order Code811539
Order Code NamePromethazine (Phenergan)
Order Loinc
Result Code808211
Result Code NamePromethazine (Phenergan)
UofMng/ml
Result LOINC3988-3