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Recommendations when to order or not order the test. May include related or preferred tests.
Use to detect causal F8 variant in individuals with severe hemophilia A or to determine carrier status for at-risk females with severely affected male relatives. For mild to moderate hemophilia A, Hemophilia A (F8) Sequencing (3004241) is preferred.
New York DOH Approval Status
Indicates whether a test has been approved by the New York State Department of Health.
This test is not New York state approved. There are no New York state-approved laboratories available. Submit a Non-Permitted Laboratory Request Form (NPL) to the NYDOH prior to collection of specimen. If NPL is approved by NYDOH, and sample is received at ARUP, testing will be performed.
Specimen Required
Patient PreparationInstructions patient must follow before/during specimen collection.
CollectSpecimen type to collect. May include collection media, tubes, kits, etc.
Lavender or Pink (EDTA) or Yellow (ACD Solution A or B).
Specimen PreparationInstructions for specimen prep before/after collection and prior to transport.
Transport 3 mL whole blood. (Min: 3 mL)
Storage/Transport TemperaturePreferred temperatures for storage prior to and during shipping to ARUP. See Stability for additional info.
Refrigerated.
Unacceptable ConditionsCommon conditions under which a specimen will be rejected.
Serum or plasma; grossly hemolyzed or frozen specimens. Saliva. Buccal brush or swab, FFPE tissue, DNA.
RemarksAdditional specimen collection, transport, or test submission information.
StabilityAcceptable times/temperatures for specimens. Times include storage and transport time to ARUP.
Expected turnaround time for a result, beginning when ARUP has received the specimen.
7-14 days If reflexed, add 3-4 weeks.
Reference Interval
Normal range/expected value(s) for a specific disease state. May also include abnormal ranges.
By report.
Interpretive Data
May include disease information, patient result explanation, recommendations, or details of testing.
Refer to report.
This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the U.S. Food and Drug Administration. This test was performed in a CLIA-certified laboratory and is intended for clinical purposes.
Counseling and informed consent are recommended for genetic testing. Consent forms are available online.
Compliance Category
Laboratory Developed Test (LDT)
Note
Additional information related to the test.
F8 inversion testing is performed on all specimens. If inversion testing does not explain the clinical scenario, then F8 gene sequencing will be added. If sequencing does not explain the clinical scenario, then deletion/duplication testing will be added. Additional charges apply.
Hotline History
N/A
CPT Codes
The American Medical Association Current Procedural Terminology (CPT) codes published in ARUP's Laboratory Test Directory are provided for informational purposes only. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. CPT codes are provided only as guidance to assist clients with billing. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT coding is the sole responsibility of the billing party. ARUP Laboratories assumes no responsibility for billing errors due to reliance on the CPT codes published.
81403; if reflexed to NGS, add 81407; if reflexed to Del/Dup, add 81406
* 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
Other names that describe the test. Synonyms.
DNA analysis for F8 deficiency
DNA analysis for hemophilia A
factor VIII genetic analysis
hemophilia A carrier screening
hemophilia A carrier status
Hemophilia A molecular cascade
hemophilia A mutation evaluation
hemophilia A reflex panel
severe hemophilia A comprehensive reflex panel
Hemophilia A (F8) 2 Inversions with Reflex to Sequencing and Reflex to Deletion/Duplication
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