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Genetic test for pathogenic variants in the *GPD1* gene (using probe-based detection)

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

This test checks for harmful changes (mutations) in the *GPD1* gene, which may be linked to certain genetic conditions.

Quick summary

["A genetic test to identify possible gene mutations affecting metabolism or health risks."]

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

Key facts at a glance

LOINC
92950-5
Short code
Gp B Strep DNA Spt NAA+non-prb-NCncRng
Synonyms
Gp B Strep DNA Spt NAA+non-prb-NCncRng
Category
coagulation
Sample
sputum
Container
Sterile sputum container
Units
N/A
Ref low
0.8
Ref high
1.2
Critical range
— – 5 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
non-probe-amp-tar
CPT
85610
SNOMED
396252006
Specimen volume
3-5 mL
Stability
Room temperature: 2h, Refrigerated: 24h
TAT
4–24 hours
Order
routine

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have a family history of metabolic disorders, unexplained symptoms like fatigue or muscle weakness, or if genetic counseling suggests a risk for conditions tied to *GPD1* mutations.

What to Expect Before the Test

No special preparation is needed. If blood is drawn, you may experience mild discomfort, but it’s a quick process. If saliva or another sample is used, simply collect it as directed.

What the Results Mean

Results will indicate whether harmful mutations were found in the *GPD1* gene. If present, they may help guide further medical evaluation or treatment options.

Common Conditions Linked to *GPD1* Mutations

While *GPD1* mutations are rare, they can be associated with metabolic disorders affecting glucose metabolism or energy production in cells.

Reference range

INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A

Specimen: sputum

Inform your healthcare provider if you are taking blood thinners. No special preparation required.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Genetic testing for *GPD1* variants helps identify potential hereditary conditions early, allowing for personalized medical advice, monitoring, or preventive strategies.

Short name

GPD1 Gene Pathogenic Variant Test

Frequently asked questions

Will this test show all possible mutations?
This test detects specific mutations detected by the probe used. Not all mutations are covered, so additional genetic testing may be needed if results are unclear.
How long will I need to wait for results?
Results typically take 1–2 weeks, depending on lab processing and follow-up steps. Your provider will contact you directly with findings.
Can I get this test if I’m pregnant?
Yes, this test can be performed during pregnancy if medically necessary. Always discuss risks and benefits with your healthcare provider before proceeding.
  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