Chromatin Interphase Blood Marrow Fish Impedance Analysis (qualitative probe screening)
This test evaluates the presence of abnormal chromatin structures in cells from your bone marrow, often used to assess genetic or chromosomal abnormalities.
["This test helps detect potential genetic or chromosomal issues in blood cells."]
Key facts at a glance
- LOINC
- 57802-1
- Short code
- Chrom analy interphase Bld/Mar FISH-Imp
- Synonyms
- Chrom analy interphase Bld/Mar FISH-Imp
- Category
- chemistry
- Sample
- whole-blood
- Container
- Lavender-top (EDTA)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- fish
- CPT
- 86038
- 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
Chromatin is the material within cells that holds genetic information. During interphase (a phase of cell growth), chromatin can appear in various forms. This test uses a specialized probe to detect unusual chromatin patterns, which may indicate genetic disorders or other cellular abnormalities. The method involves examining cells from your bone marrow under a microscope or through advanced imaging techniques to identify any irregularities in chromatin structure.
Why It Might Be Ordered
Your healthcare provider may order this test if you have symptoms or risk factors for genetic conditions, such as certain cancers (e.g., leukemia), inherited disorders, or unexplained blood abnormalities. It can also be part of a diagnostic workup for conditions affecting bone marrow function.
Sample Collection and Preparation
A small amount of bone marrow will be collected during a procedure called a bone marrow aspiration or biopsy. This is typically done under local anesthesia. The collected cells are then processed and analyzed to examine chromatin structure. The test may require additional preparation, such as staining cells to highlight specific features under a microscope.
What to Expect Before the Test
You may need to avoid certain medications or supplements that could interfere with the test results. Inform your healthcare provider about all medications, including over-the-counter drugs or herbal products, you are taking. Follow any specific fasting or preparation instructions provided by your lab or doctor.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Frequently asked questions
Abnormal chromatin patterns detected in this test can suggest genetic mutations, chromosomal abnormalities, or other underlying conditions affecting cell division and function. For example, certain chromatin changes are linked to cancers like leukemia or inherited disorders such as Down syndrome. Early detection can guide treatment decisions and improve management of these conditions.
How long will it take to get my results?
Can I fast before this test?
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