Ordering Recommendation

Consultation with an ARUP genetic counselor is advised; please call 800-242-2787 ext. 5100. The gene(s) of interest must be specified with order. Testing is only available for the following genes: F8, MLH1, MSH2, MSH6, SDHB, SDHC, SDHD, and SHOX.

Recommended test to assess for a large deletion or duplication previously detected in a family member; a copy of the family member’s test result is required. May be ordered to assess for large deletions/duplications in a gene of interest when a previous sequencing result was not diagnostic. May be used as an initial diagnostic test in individuals with a suspected SHOX-related disorder or in those with a known family history of large deletions or duplications in the SHOX gene; the preferred test for initial diagnosis is SHOX Deficiency Disorders, Sequencing and Deletion/Duplication (3004603).      

New York DOH Approval Status

This test is not New York state approved.

Specimen Required

Patient Preparation
Collect

Contact ARUP's genetic counselor at 800-242-2787 ext. 5100 prior to test submission. A disease-specific patient history form is available at https://ltd.aruplab.com/api/ltd/pdf/104

Specimen Preparation
Storage/Transport Temperature
Unacceptable Conditions
Remarks

Submission of a completed patient history form is required. If testing is ordered to assess for a large deletion/duplication previously identified in a family member, submission of the family member's laboratory report is required. Testing will begin once all required documentation is received.

Stability

Methodology

Multiplex Ligation-Dependent Probe Amplification (MLPA)

Performed

Sun-Sat

Reported

7-14 days

Reference Interval

Interpretive Data

Refer to report.

Compliance Category

Laboratory Developed Test (LDT)

Note

Deletion/duplication analysis by MLPA is offered for the following genes: F8, MLH1 , MSH2, MSH6, SDHB, SDHC, SDHD, SHOX

Hotline History

N/A

CPT Codes

CPT codes vary based on gene.

Components

Component Test Code* Component Chart Name LOINC
3003145 Deletion/Duplication Interpretation 83006-7
3003146 Deletion/Duplication Gene 83006-7
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Aliases

Deletion/Duplication Analysis by MLPA