Alpha Subunit
- Laboratory
- Quest Diagnostics
- Test code
- 8658
- Specimen
- Serum
- Fasting
- Not stated
- LOINC
- 30199-4
- Turnaround
- Set up: Mon, Thurs (p.m.); Report available: 5 days
Laboratory assay overview
This assay is useful in the diagnosis and management of various pituitary, placental, pancreatic and hCG-producing tumors. The assay can also be useful for investigations where alpha subunit is increased under various physiological stimuli, e.g., GnRH stimulation and TRH stimulation tests.
View complete laboratory reference notes
Males | 0.1-0.5 ng/mL Premenopausal Females | 0.1-0.6 ng/mL Postmenopausal Females | 0.1-1.5 ng/mL Pregnancy (1st and 2nd Trimesters) | 35.0-186.0 ng/mL Hypothyroidism | 0.2-3.2 ng/mL This test measures the free alpha subunit that is common to LH, FSH, TSH and hCG. These hormones are comprised of identical alpha subunits and unique beta subunits that confer biological specificity.
Quest Diagnostics test directory, test code 8658