Sign in →

Test Code AutXpand Autism/ID Xpanded Panel

Important Note

Note that this panel uses a trio approach that includes concurrent analysis of the patient (proband) and both parents.


This test should be ordered as a MISC Test Communication Order.


Generally requires referral to Genetics for pre-test counseling and sample coordination.

Clinical System Name

Autism/ID Xpanded Panel



Intellectual Disability Panel

Sample Requirements

Preferred sample is whole blood


Specimen: Whole Blood

Container(s): Lavender/EDTA

Preferred Vol: 5 mL

Minimum Vol: 2 mL



Specimen: DNA

Container(s): Sterile plastic tube

Preferred Vol: 20,000 ng (20 µg) at a concentration of 50 ng/µL

Minimum Vol: 400 µL


Oral rinse (30-40 mL) are also accepted.


Processing Instructions

Reject due to:

Spin: N

Aliquot: N

Temp: 2 - 4 C

Storage location: Refrigerate in CPA refrigerator Sendouts rack. Samples drawn on a Friday can be refrigerated until Monday shipment. Samples drawn on a Friday before a Monday holiday must have DNA extraction.


Off-site collection: Send whole blood refrigerated.


Specimen Type Temperature Time
Whole Blood Room temp 3 d
Whole Blood Refrigerated 7 d
Whole Blood Frozen N
Extracted DNA Room temp 3-4 d
Extracted DNA Refrigerated 1 y
Extracted DNA Frozen Indefinitely



STAT Performed TAT
N   6 w


Performing Laboratory




207 Perry Parkway
Gaithersburg, MD 20877
(301) 519-2100



Reference Range

Interpretive report is provided


Method: Next-gen Sequencing

Special Instructions

Links to:




Required requisition

Clinical Utility

Test information sheet

Send Out Instructions


Reference Test Name:

Autism/ID Xpanded Panel

Reference Test Number: 952
Instructions: GeneDx accepts Saturday delivery. Whole blood specimens may be stored refrigerated for up to 7 days prior to shipping. Ship overnight via FedEx M - F, ambient temperature.