CD14-Positive Blasts, Blood — Cell Concentration
This test measures CD14-positive blast cells in a blood sample. It is mainly used with other findings to evaluate immature white blood cells and blood cancers.
["The result helps determine the number and identity of certain immature white blood cells."]
Key facts at a glance
- LOINC
- 51079-2
- Short code
- CD14 Blasts Spec-aCnc
- Synonyms
- CD14 Blasts Spec-aCnc
- Category
- liver
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 10
- Ref high
- 40
- Critical range
- — – 500 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 84484
- SNOMED
- 302774002
- 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 is this test?
This test measures the concentration of blast cells that carry the CD14 protein in a blood sample. Blasts are immature blood cells, and CD14 is found mainly on monocytes and certain immature cells. The result is interpreted with other laboratory and flow-cytometry findings.
Why might I need this test?
A clinician may order this test when an abnormal blood count suggests a leukemia, lymphoma, or another blood-cell disorder. CD14 measurement can help characterize the cells involved and may also be used to follow response to treatment.
How is the test performed?
A blood sample is collected and examined in the laboratory, usually as part of a flow-cytometry panel. Flow cytometry uses labeled antibodies to identify cells that carry CD14 and measures how many blast cells are present.
How do I prepare for the test?
No special preparation is usually required beyond following the laboratory's blood-draw instructions. Tell your clinician if the test is being used to monitor a known blood cancer, because treatment timing may matter.
Reference range
Adult: 10-40 U/LN/A
No special preparation required. Avoid fatty meals before the test if possible.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
An increased number of CD14-positive blasts may occur in certain acute leukemias and other blood-cell disorders. The finding is not diagnostic by itself and must be interpreted with the overall blood count, symptoms, other markers, and sometimes bone-fluid testing. Results that are appropriate for one medical situation may differ in another, so interpretation should be provided by the treating clinician.
Short name
CD14+ blast count
Frequently asked questions
What does a positive CD14 result mean?
Does an abnormal result mean I have cancer?
Is fasting required 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 17, 2026. · Read our editorial policy