Red Blood Cell Morphology Autoanalysis (Automated Red Blood Cell Morphology Screening)
This test automatically examines the shape, size, and other characteristics of your red blood cells (RBCs) using a blood sample. It helps detect abnormalities that may indicate conditions like anemia, infections, or blood disorders.
["This screening helps identify potential red blood cell issues that may need further investigation."]
Key facts at a glance
- LOINC
- 82588-5
- Short code
- RBC # Mar Auto
- Synonyms
- RBC # Mar Auto
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 4.2
- Ref high
- 5.9
- Critical range
- 2 N/A – 7 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- automated-count
- CPT
- 85041
- SNOMED
- 900000000000003001
- 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 analyzes various features of red blood cells, including their size (MCV), shape (e.g., spherocytes, elliptocytes), and internal components. Automated technology counts and categorizes RBCs based on their appearance under a microscope, often flagging cells that deviate from normal morphology.
Why It Might Be Ordered
Your healthcare provider may order this test if you have symptoms like fatigue, pale skin, unusual bruising, or if they suspect conditions such as thalassemia, sickle cell disease, or other inherited blood disorders. It can also be part of routine blood work or follow-up testing for unexplained lab results.
Sample Collection and Preparation
A small amount of blood is drawn from a vein in your arm. The sample is processed and analyzed immediately or within hours to detect abnormalities in red blood cell morphology.
Common Findings and Next Steps
If the test shows normal RBC morphology, no further action is needed unless other blood tests suggest an underlying issue. If abnormalities are detected, your provider may recommend additional tests, such as a complete blood count (CBC) with differential, to determine the cause and guide treatment.
Reference range
Adult males: 4.2-5.9; Females: 3.8-5.1 x 10^12/LN/A
No special preparation required. Stay well hydrated.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Abnormal RBC morphology can signal various conditions, including hereditary blood disorders (e.g., spherocytosis, elliptocytosis), infections, or reactions to medications. Early detection can help manage symptoms and prevent complications, such as anemia or organ damage.
Short name
RBC Morphology Auto Check
Frequently asked questions
What does an abnormal RBC morphology test mean?
How often should I get this test?
Can lifestyle changes affect RBC morphology?
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 17, 2026. · Read our editorial policy