Methodology
Fluorescence in situ Hybridization (FISH) - using the SNRPN Probe
Synonyms
Prader/Willi; Angelman Syndrome
Specimen Type
Whole Blood
Performing Lab
Quest Diagnostics San Juan Capistrano
Epic ID
Other Reference Test
Lab Test Days
Daily
Standard TAT
5-7 Days
Collection Information
Specimen Required
1-5 mL Whole Blood
Container Type
Dark Green (Sodium Heparin)
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Ambient-OK
Test Volume Required
5 mL Whole Blood
Minimum Test Volume
1 mL Whole Blood
Comments
Normal test to order is Prader Willi DNA by Methylation. Order this test ONLY by SPECIAL REQUEST. Insurance authorization required prior to draw for Outpatients. Ok to send on Inpatients.
CPT Codes
88271, 88273
Revised
02-01-23
Initials
SL, CS