Test Code: 745
Clinical Significance: Levels increase sharply during the luteal phase of the menstrual cycle. The level increases from 9 to 32 weeks of pregnancy.
Alternative Name(s): N/A
Supply: T01 - Red/Gray SST 8.5mL
Preferred Specimen: Serum
Preferred Volume: 2mL
Transport Container: Serum Separator Tube (SST)
Transport Temperature: Room Temperature
Specimen Stability: Room Temperature: 72 hours
SPECIAL INSTRUCTIONS: DHEA supplementation causes a false elevation of values in this standard immunoassay method for progesterone. Physicians using progesterone levels as a criterion for triggering ovulation in an IVF cycle in patients supplemented with DHEA should assess progesterone levels using a LC/MS/MS Progesterone assay, such as test code 17183 performed at Quest Diagnostics San Juan Capistrano.
Rejection Criteria: Serum stored on barrier gel for more than 72 hours. Do not order progesterone testing as an add on to a barrier gel specimen older than 72 hours. Progesterone binds to barrier gel causing decreased values.
For additional supply or collection device information, please contact DLO's Customer Service at (800) 891-2917, option 2.