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HelpTest Code STER Sterols, Plasma
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Reporting Name
Sterols, PSpecimen Type
PlasmaNecessary Information
Biochemical Genetics Patient Information (T602) is recommended, but not required, to be filled out and sent with the specimen to aid in the interpretation of test results.
Specimen Required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube:
Preferred: Green top (sodium or lithium heparin)
Acceptable: Lavender top (EDTA), pearl white top (EDTA plasma gel), yellow top (ACD solution A or B)
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL plasma
Collection Instructions:
1. Centrifuge specimen and aliquot plasma into plastic vial.
2. Send plasma frozen.
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Plasma | Frozen (preferred) | 92 days |
| Refrigerated | 28 days | |
| Ambient | 14 days |
Specimen Minimum Volume
Plasma: 0.1 mL
Special Instructions
Day(s) Performed
Tuesday, Friday
Specimen Retention Time
1 monthReport Available
3 to 7 daysReference Values
7-dehydrocholesterol
≤2.0 mg/L
8-dehydrocholesterol
≤0.3 mg/L
8(9)-cholestenol
≤5.0 mg/L
Campesterol
≤8.0 mg/L
Cholestanol
≤6.0 mg/L
Desmosterol
≤2.5 mg/L
Dihydro T-Mas
≤0.3 mg/L
Lathosterol
≤6.0 mg/L
Sitosterol
≤15.0 mg/L
Squalene
≤1.0 mg/L
Stigmasterol
≤0.5 mg/L
Useful For
Investigation of possible desmosterolosis (desmosterol reductase deficiency), cerebrotendinous xanthomatosis, lathosterolosis, sitosterolemia, sterol C4 methyl oxidase deficiency, MEND (male EBP disorder with neurologic defects) syndrome, and X-linked chondrodysplasia punctata 2
CPT Code Information
82542
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| STER | Sterols, P | 75858-1 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 29942 | Interpretation | 59462-2 |
| 610622 | 7-Dehydrocholesterol | 33275-9 |
| 610623 | 8-Dehydrocholesterol | 34671-8 |
| 610620 | 8(9)-Cholestenol | 100424-1 |
| 50501 | Campesterol | 75738-5 |
| 113381 | Cholestanol | 2082-6 |
| 50499 | Desmosterol | 75739-3 |
| 610621 | DiHydro T-MAS | 100425-8 |
| 50500 | Lathosterol | 75740-1 |
| 50502 | Sitosterol | 75741-9 |
| 610618 | Squalene | 100426-6 |
| 610619 | Stigmasterol | 100427-4 |
| 29944 | Reviewed By | 18771-6 |
Forms
1. Biochemical Genetics Patient Information (T602)
2. If not ordering electronically, complete, print, and send a Biochemical Genetics Test Request (T798) with the specimen.