|Test||SMITH-LIMLI-OPITZ SCREEN, PLASMA|
|Methodology||Gas Chromatography/Mass Spectrometry (GC/MS)|
|Description||Useful for diagnosis of Smith-Lemli-Opitz syndrome|
|Specimen||Draw blood in a green-top (heparin) tube from a fasting patient (4 hours or more, infants just before next feeding). Spin down promptly and send 1.0 mL (minimum: 0.2 mL) of heparinized plasma FROZEN in plastic vial.|
|Reference Values||Negative (reported as positive or negative)
Quantitative results are provided when positive.
|Analytic Time||2 Days|
|Day(s) Test Set Up||Varies; 1 time per week|