UCSF Navigation Bar

UCSF Departments of Pathology & Laboratory Medicine Home Page

Lab Manual for Moffitt-Long and Mount Zion

Lab Manual for SFGH

Internal Resources

Click here for more information about laboratory operations and procedures

7-Dehydrocholesterol

Item Value
Approval req'd? No
Available Stat? No
Test code DHC7
Performed by Quest
Sendout? Yes
Method GCMS
Container type Lavender top (Green top accceptable)
Amount to Collect 2 mL blood
Sample type EDTA Plasma
Preferred volume 1 mL plasma
Min. Volume 0.1 mL plasma
Processing notes Freeze at -20C. Ship frozen to China Basin. Order Quest # 17664X
Normal range See Additional Information
Synonyms Smith-Lemli-Opitz syndrome; Dehydrocholesterol,7-
Stability Room temperature unacceptable, refrigerated 48 hours, frozen at -20C indefinite.
Turn around times Batched 1-2 times per week. Turnaround 7-14 days
Additional information Deficiency of 7-dehydrocholesterol reductase leads to accumulation of this compound in Smith-Lemli-Opitz Syndrome.

This laboratory is not eligible for MediCal reimbursement. Specimens on MediCal patients must be charged either to a budget account or paid for in advance in cash.
CPT coding 82542-90
LOINC code 33275-9
Last Updated 10/2/2010 11:51:43 AM
Entry Number 293

If you have additional questions regarding this test, please call: 415-353-1667

Search Our Test Menu
UCSF home page UCSF home page About UCSF Search UCSF UCSF Medical Center