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Guided Bone Marrow Differentiation Index (or Cell Morphology Analysis)

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

This test examines the types and proportions of cells found in a sample of bone marrow, helping doctors assess blood cell production and detect abnormalities like infections, cancers, or genetic disorders.

Quick summary

["Evaluates blood cell development and potential blood disorders through bone marrow cell analysis."]

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

Key facts at a glance

LOINC
80504-4
Short code
MR Guided Bx
Synonyms
MR Guided Bx
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
mr
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

Why This Test Matters in Diagnosis

Bone marrow is the body’s factory for making blood cells. This test looks at how well different types of blood cells (like red blood cells, white blood cells, and platelets) are developing. It can help diagnose conditions such as anemia, leukemia, or other blood-related diseases by checking for unusual cell counts or shapes.

What to Expect Before the Test

You’ll likely receive a local anesthetic at the injection site, and a small amount of bone marrow will be taken from your hip bone. The procedure is usually quick and may cause mild discomfort. Recovery is fast, and you can return to normal activities soon after.

How the Results Are Used

Your results will show the balance of different cell types in your bone marrow. High or low counts of certain cells may indicate problems with blood production or disease. Doctors use these findings alongside other tests to guide treatment plans.

Common Conditions This Test Helps Identify

This test is often used to diagnose or monitor conditions like leukemia, myelodysplastic syndromes, or inherited blood disorders. It can also help track how well treatments are working or check for signs of bone marrow damage from conditions like chemotherapy or radiation.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Bone Marrow Cell Count & Differentiation

Frequently asked questions

What are the normal ranges for bone marrow cell counts?
Normal ranges can vary depending on the specific cell types analyzed and the lab’s methods. Your doctor will interpret the results in the context of your overall health and medical history. If results are outside expected ranges, further testing may be needed.
How long does it take to get results from this test?
Results are typically available within 1 to 2 weeks after the sample is collected. The timeline can depend on lab workload and whether additional tests are needed for confirmation.
Can I eat or drink before this test?
You can eat and drink normally before the test, as it doesn’t require fasting. However, inform your healthcare provider if you’re taking any medications, as they may need to adjust your dose before the procedure.
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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