7-dehydrocholesterol, (Plasma / Serum)

Diagnostic Use

Used for diagnosing Smith Lemli Opitz syndrome

Department

Specialist Biochemistry

Delphic Registration Code

DHC7

Synonyms

7-dehydroxycholesterol
Campesterol
Dehydrocholesterol-7
DHC
Neutral sterols
Plant Sterols
Sitosterol
Smith Lemli Opitz

Turnaround Time

8 weeks

Test Code

5817

Specimen Type

• Serum
• Plasma
• Amniotic Fluid

Specimen Requirements

Tube/Container Type:

Preferred

• EDTA (Lavender Cap)
• please_refer_to_additional_requiremets

Acceptable

• Lithium Heparin - Non-gel (Green Cap)
• Lithium Heparin - Gel (Light Green Cap)

Preferred Sample Volume (ml)

1.0

No of Samples Required

1

Paediatric Specimen Requirements

Tube/Container Type:

Preferred

• EDTA (Lavender Cap)

Acceptable

• Lithium Heparin - Non-gel (Green Cap)
• Lithium Heparin - Gel (Green Cap)

Preferred Sample Volume (ml)

0.5

Additional Specimen Information

Specimen Collection Protocols - Plasma samples are best protected from light.

However for amniotic fluid 7-DHC send cell free amniotic fluid protected from light. Minimum 1.0 mL

Aliquot Instructions

Sample Type

• Serum
• Plasma

Minimum Volume (ml)

0.2

Transport to Lab

Frozen
If overnight - Frozen

Additional Referral/Aliquot Information

Minimum 200 uL plasma or serum. Preferable 500 uL plasma or serum protected from light. 1mL amniotic fluid protected from light.

Test Method

GCFID

Non-Funded Test Cost

$524.31 (Exclusive of GST)

Billing Code

5817

Referred to SA pathology Adelaide Womens & Childrens Hospital

Contact Information

Enquiry Form