Skip to content

Full-length genetic sequencing of Factor IX (FIX) mutation panel with whole blood DNA

Published: August 9, 2026Updated: August 16, 2026

This test checks for genetic variations in the Factor IX gene, which may be linked to hemophilia A or related bleeding disorders. It involves analyzing DNA from your blood.

Quick summary

["This test helps identify inherited genetic changes that could affect blood clotting."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
94199-7
Short code
FGA Full Mut Anl Bld/T Seq
Synonyms
FGA Full Mut Anl Bld/T Seq
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
sequencing
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What This Test Measures

The test examines specific mutations in the Factor IX gene, which encodes a protein crucial for blood clotting. Certain mutations can lead to hemophilia or other bleeding disorders. The sequencing method detects changes in the DNA sequence that may not be visible with standard blood tests alone.

How the Sample Is Collected

A small blood sample is drawn from your arm, similar to a routine blood test. The DNA is extracted from the blood cells and analyzed for mutations in the Factor IX gene.

Why It Might Be Ordered

Your healthcare provider may recommend this test if you or a family member have symptoms of bleeding disorders, a history of hemophilia, or if genetic testing is suspected due to unexplained bleeding or clotting issues.

What to Expect Before the Test

No special preparation is needed, but inform your provider about any medications you’re taking, especially blood thinners, as they may affect test results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

FIX Mutation Screen

Frequently asked questions

Will I need to fast before this test?
No fasting is required for this genetic blood test.
How long will it take to get my results?
Results typically take 2 to 4 weeks, depending on laboratory processing times and sequencing complexity.
Can I have my results explained in a simple way?
Yes, your healthcare provider or a genetic counselor will discuss the results with you in detail, explaining any genetic variations found and their potential implications.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy