Test Directory

Test Code
6CCT
Test Name
Common Carrier Screening Panel
CPT Codes
81243, 81479
Clinical Utility

Genetic analysis to provide a molecular diagnosis of these disorders. Recommended for individuals with a personal and/or family history of these disorders to ensure appropriate treatment and establish recurrence risk for family members.

Specimen and Container Info

Preferred/Alternate

Specimen Type

Containers

Volume

Preferred Specimen Type

Whole Blood

Lavender Top (EDTA)

3 mL

Alternate Specimen Type

Genomic DNA

1.5 mL Tube

3 µg (at a concentration of at least 30 ng/µl), preferably in TE solution.


NOTE: For specimens from outside of North America, the preferred specimen type is Genomic DNA. HNL Genomics does not recommend shipping whole blood or cultured cells from any location other than the United States, Canada, or Mexico.

Transport Instructions
  • Transport at room temperature within 24 hours.
  • If the specimen cannot be transported to the lab within 24 hours, refrigerate for up to 72 hours.
  • Do not freeze or expose to extreme temperatures, refrigerate for up to 72 hours if cannot be transported to lab within 24 hours. 
Stability Requirements

Room Temperature

24 hours

Refrigerated

72 hours

Causes for Rejection
  • Improperly labeled specimen (minimum of two patient identifiers)
  • Inappropriate specimen type
  • Incomplete or incorrect test request form
  • Insufficient volume
  • Specimen has leaked in transit
  • Specimen without a test order
Methodology
Next Generation Sequencing and Copy Number Variation Analysis
Performing Location
Genomics - Snowdrift
Alternate Names
  • Pan-ethnic panel
  • Equivalent to Horizon 14
Description

The Common carrier screening panel is designed to detect carriers of disorders commonly tested by carrier screening. These disorders are severe, childhood onset disorders with autosomal recessive or X-linked inheritance that have been recommended or suggested by the American College of Obstetrics and Gynecology (ACOG) or the American College of Genetics and Genomics (ACMG) for inclusion on carrier screening panels. This test will identify individuals who are at risk of having a child with these disorders. The test includes assessment of Fragile X CGG repeat number, SMA copy number and silent carrier risk, and full gene sequencing with large deletion/duplication analysis of the rest of the disorders on the panel. This panel has high sensitivity for individuals of all ethnic backgrounds. This test is intended for pre/post-conception carrier screening and is not intended for diagnostic testing.

Gene

Disorder

MIM

Inheritance

ACADM

Medium-chain-acyl-CoA dehydrogenase deficiency

201450

AR

ASPA

Canavan disease

271900

AR

BCKDHA

Maple syrup urine disease, type Ia

248600

AR

BLM (RECQL3)

Bloom syndrome

210900

AR

CFTR

Cystic Fibrosis

219700

AR

 

Congenital bilateral absence of vas deferens

277180

AR

DHCR7

Smith-Lemli-Opitz syndrome

270400

AR

DMD

Duchenne muscular dystrophy

310200

XLR

 

Becker muscular dystrophy

300376

XLR

 

Cardiomyopathy, dilated, 3B

320045

XL

ELP1 (IKBKAP)

Familial dysautonomia

223900

AR

FANCC

Fanconi anemia C

227645

AR

FMR1

Fragile X syndrome

300624

XL

 

Fragile X tremor/ataxia syndrome

300623

XL

 

Premature ovarian failure 1

311360

XL

GALT

Galactosemia

230400

AR

GBA

Gaucher disease, type I

230800

AR

 

Gaucher disease, type II

230900

AR

 

Gaucher disease, type III

231000

AR

 

Gaucher disease, type IIIC

231005

AR

 

Gaucher disease, perinatal lethal

608013

AR

HBA1/HBA2

Alpha thalassemia

604131

AR

 

Hemoglobin H disease

613978

AR

 

Hemoglobin Bart's hydrops fetalis syndrome

236750

AR

HBB

Beta thalassemia

613985

AR

 

Sickle cell anemia

603903

AR

HEXA

Tay-Sachs disease

272800

AR

MCOLN1

Mucolipidosis IV

252650

AR

PAH

Phenylketonuria

261600

AR

PKHD1

Polycystic kidney disease 4, with or without hepatic disease

263200

AR

SMN1

Spinal muscular atrophy 1

253300

AR

 

Spinal muscular atrophy 2A

253550

AR

 

Spinal muscular atrophy 3

253400

AR

 

Spinal muscular atrophy 4

271150

AR

SMN2

Modifier of spinal muscular atrophy

253400

--

SMPD1

Niemann-Pick disease, type A

257200

AR

 

Niemann-Pick disease, type B

607616

AR

Testing Schedule
Monday-Friday
Genes
HBA2, SMN2, DMD, GBA, ELP1, MCOLN1, SMPD1, SMN1, PAH, ASPA, HEXA, BCKDHA, BLM, HBB, FMR1, CFTR, FANCC, HBA1, GALT, ACADM, PKHD1, DHCR7