Chromosomal and Cytogenetic Analysis for Basic Blood Cell Counts (with Specific Focus on Leukocyte Morphology)
This test examines the chromosomes and structure of blood cells, including white blood cells, to detect any abnormalities that might suggest genetic or cellular disorders.
["It helps identify conditions affecting blood cell formation or structure."]
Key facts at a glance
- LOINC
- 77314-3
- Short code
- Chromos cyto basic assoc obs Pnl Bld/T
- Synonyms
- Chromos cyto basic assoc obs Pnl Bld/T
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- cytogenetics
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What This Test Measures
The test involves analyzing chromosomal integrity and the physical characteristics of blood cells, such as white blood cells, to look for irregularities. This may include checking for abnormal cell shapes, sizes, or genetic markers that could indicate conditions like leukemia, chromosomal abnormalities, or other hematologic disorders.
Why It’s Ordered
Your healthcare provider may order this test if you have symptoms like unexplained fatigue, frequent infections, bleeding disorders, or if there’s a family history of genetic blood disorders. It’s also used in diagnosing conditions like myelodysplastic syndromes, acute leukemia, or other hematologic malignancies.
Sample Collection and Preparation
A blood sample is drawn from a vein, typically in your arm. The sample is processed to isolate blood cells and chromosomes for microscopic examination. This test may require additional specialized staining or techniques to highlight cellular structures.
Common Conditions Detected
This test can help identify chromosomal abnormalities (e.g., translocations, deletions) or cytogenetic changes in blood cells. It may also reveal issues with cell differentiation or proliferation, which are key in diagnosing blood cancers or genetic syndromes.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
Basic Blood Cell Chromosomal/Cytogenetic Evaluation
Frequently asked questions
What does this test tell me about my health?
How long will I need to wait for results?
Can I eat or drink 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