Test Mnemonic
CBINTR
CPT Codes
Includes
- Desmosterol
- 7-Dehydrocholesterol
- Lathosterol
Performing Laboratory
Kennedy Krieger Institute
Specimen Requirements
| Volume |
Type |
Container |
Collect Temperature |
Transport Temperature |
Special Instructions |
| 1 mL | Plasma | Sodium or Lithium heparin (Green) | | Frozen | Centrifuge, aliquot and freeze ASAP. |
Alternate Specimen Requirements
| Volume |
Type |
Container |
Collect Temperature |
Transport Temperature |
Special Instructions |
| 1 mL | Plasma | EDTA (Lavender) | | Frozen | Centrifuge, aliquot and freeze ASAP. |
Stability
| Environmental Condition |
Description |
| Ambient | Unacceptable |
| Refrigerated | Unacceptable |
| Frozen | Indefinitely |
Days Performed
Tue - Fri
Turnaround Time
4 - 7 days
Methodology
| Name |
Description |
| Gas Chromatography Mass Spectrometry (GCMS) | |
Reference Range
| 7-Dehydrocholesterol |
| Sex |
Age From |
Age To |
Type |
Range |
Range Unit |
| | | | Normal | 0.04 - 0.36 | ug/mL |
| Desmosterol |
| Sex |
Age From |
Age To |
Type |
Range |
Range Unit |
| | | | Normal | 0.12 - 2.00 | ug/mL |
| Lathosterol |
| Sex |
Age From |
Age To |
Type |
Range |
Range Unit |
| | | | Normal | 0.17 - 2.85 | ug/mL |
