Laboratory: Clinical Biochemistry
Test Name:
STEROLS - (P)
Test Code: MISC
Clinical Information:
Test Indications: For investigation of possible desmosterolosis (desmosterol reductase deficiency), cerebrotendinous xanthomatosis, lathosterolosis, and sitosterolemia

Patient Preparation Instructions: Fasting collection (12 hours), infants just before next feeding.  Send immediately to laboratory for centrifuging without delay (within 45 min).
Collection Devices:
Full collection tube is required.
A Sodium Heparin No Gel collection tube is also acceptable
Specimen Required:


Plasma: 0.5 mL
Pediatric Plasma: 0.2 mL

Fasting collection (12 hours), infants just before next feeding.  Send immediately to laboratory for centrifuging without delay (within 45 min).
Referral:

1 mL fasting (12 hr) plasma.  Centrifuge without delay (within 45 min).  Send specimen frozen in plastic vial.
Requisition:
Reference Values:
Mayo Medical Labs, Sterols (plasma), Test ID: STER
DESMOSTEROL  0.0-2.0 mg/L
LATHOSTEROL   0.0-3.0 mg/L
CAMPESTEROL  0.0-7.0 mg/L
SITOSTEROL      0.0-5.0 mg/L
CHOLESTANOL  0.0-5.0 mg/L
Availability:
Weekdays
Turnaround time within 2 weeks.
See Also:
More Information:
Centrifuge without delay (within 45 min).  Store and ship frozen in plastic vial to Mayo Medical Laboratories (Unit code # 82079).