DIHYDROTESTOSTERONE (DHT) (ENDOCRINE SCIENCES)
General Information
HLAB/HOL Code: DITES
UPHSM LIS Test #: 022054
Schedule:
Testing Time: 5-10 Days
Testing Lab: Labcorp
UPHSM LIS Test #: 022054
Schedule:
Testing Time: 5-10 Days
Testing Lab: Labcorp
Specimen Info
Only 1 specimen type required, unless otherwise specified
Volume: 1.0 mL
Temperature: Frozen
Tube Type: Serum or Plasma
Collection Info:
Container: Red-top tube, gel-barrier tube, lavender-top (EDTA) tube, or green-top (heparin) tube
Collection: Separate serum or plasma from cells within one hour of collection. Send serum or plasma in plastic transport tube. Transfer specimen to a plastic transport tube before freezing. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
Temperature: Frozen
Tube Type: Serum or Plasma
Collection Info:
Container: Red-top tube, gel-barrier tube, lavender-top (EDTA) tube, or green-top (heparin) tube
Collection: Separate serum or plasma from cells within one hour of collection. Send serum or plasma in plastic transport tube. Transfer specimen to a plastic transport tube before freezing. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
Methods
High-pressure liquid chromatography (HPLC) with tandem mass spectrometry
Clinical Utilities
Dihydrotestosterone and dihydrotestosterone/ratio may be used for differential diagnosis of diseases of sexual differentiation (DSD). DHT levels may be inappropriately low compared to testosterone levels in 5a-reductase deficiency. It is recommended by guidelines to measure the ratio of testosterone to DHT. DHT levels may also be monitored to follow the effectiveness of 5a-reductase inhibitor treatment in female alopecia.
CPT Codes
82642
* The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding
is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
Reference Range
See Report
