7-Dehydrocholesterol Referred Test
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7DCHO
Synonyms
- SLO syndrome
- Smith-Lemli-Opitz - syndrome
- Smith-Lemli-Opitz syndrome
Specialty
Biochemistry
Clinical significance
An intermediate in the biosynthesis of cholesterol which is a precursor of vitamin D3. Recessive autosomal disease (Smith-Lemli-Opitz) is due to a mutation of the hydrocholesterol reductase gene 7. It is characterised by severe mental retardation, a high infant mortality rate and severe developmental retardation. The assay can be conducted on foetuses, children or adults.
Preanalytics
- 1 mL :
- Serum or amniotic fluid : FROZEN, to be stored away from light
- FROZEN
- Freezing within 4 hours
- A tube specifically for this analysis : No
Further information
According to regulation, each request must ALWAYS be accompanied by a consent form signed by the patient and the prescribing pathologist
Enclose the specific clinical information form (R26-INTGB : Metabolic Biochemistry)
The samples must reach the laboratory from Monday to Wednesday only
Documents to download
Methodology
Gas Phase Chromatography
Turnaround time
3 weeks
Refered Test
Caption
Referred TestThe pre-analytical conditions and prices are defined on the basis of the requirements of the performing laboratory.