Genetic analysis of a specific DNA region (likely related to hereditary conditions or carrier screening)
This test involves examining a sample of your DNA to check for variations in a particular gene linked to inherited conditions or carrier status.
["Understanding your genetic makeup can help identify risks for inherited diseases or inform reproductive planning."]
Key facts at a glance
- LOINC
- 21752-1
- Short code
- TCRD gene Rear Bld/T Ql
- Synonyms
- TCRD gene Rear Bld/T Ql
- Category
- chemistry
- Sample
- whole-blood
- Container
- Lavender-top (EDTA)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- molgen
- 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
This test analyzes a specific DNA sequence in your blood or other bodily sample. It looks for differences (mutations or variations) in the gene that may be associated with hereditary disorders or conditions that you might pass on to future children. The method used is likely genetic sequencing, which reads the DNA to identify these variations precisely.
Why It Might Be Ordered
Your healthcare provider may recommend this test if you or your family have a history of certain genetic conditions, if you’re considering pregnancy and want to assess carrier status, or if you’re at risk for conditions linked to this specific gene.
Sample Collection and Preparation
You’ll provide a blood sample, saliva sample, or other bodily fluid (like amniotic fluid during pregnancy) depending on the test’s instructions. The sample is then sent to a lab for DNA extraction and analysis. You may need to follow specific instructions for sample collection, such as fasting or avoiding certain medications.
What to Expect After the Test
Results typically take several weeks to come back. You’ll receive a report detailing any genetic variations found in the tested gene. Your healthcare provider will discuss the results with you and explain what they mean for your health or reproductive options.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Frequently asked questions
If a variation is found that is known to cause a hereditary condition, it may indicate an increased risk for developing that disease or passing it to offspring. Some variations may be harmless or of uncertain significance and will require further evaluation by a genetic counselor or specialist.
No, this test does not provide information about random mutations that occur in your DNA due to aging or environmental factors. It focuses specifically on the gene sequence tested.
The results are confidential and shared only with your healthcare provider. They will discuss the findings with you in detail and help you understand your next steps.
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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