Skip to content

CD14-Positive Blasts, Whole Blood — Absolute Count

Published: August 9, 2026Updated: August 17, 2026

Measures the concentration of CD14-positive blast cells in whole blood to help evaluate abnormal immature blood cells.

Quick summary

["An increased CD14-positive blast count may indicate a blood or bone marrow disorder and requires clinical interpretation."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
51078-4
Short code
CD14 Blasts Bld-aCnc
Synonyms
CD14 Blasts Bld-aCnc
Category
liver
Sample
whole-blood
Container
Lavender-top (EDTA)
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
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What is this test?

This blood test measures blast cells that carry the CD14 surface marker. Blasts are immature blood cells, and CD14 is a protein found on certain white blood cells, particularly cells in the monocyte lineage. The result reports the concentration, or absolute count, of these cells in the blood.

Why might I need this test?

This test may be ordered during the evaluation or monitoring of leukemia, other blood or bone marrow disorders, or an unexplained change in blood counts. It is usually interpreted with a complete blood count, blood smear, and other immune-cell markers.

How is the test performed?

A blood sample is collected and examined using specialized laboratory methods to identify and count cells carrying CD14. The exact testing method may vary by laboratory, and the result may be part of a broader blood-cell analysis.

How do I prepare for the test?

No special preparation is usually required for a routine blood draw. Follow any instructions from your ordering clinician or laboratory, and tell the staff if you have recently received chemotherapy, stem cell treatment, or other therapy that can affect blood-cell counts.

Reference range

Adult: 10-40 U/LN/A

Specimen: whole-blood

No special preparation required. Avoid fatty meals before the test if possible.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

CD14-positive blast count

Frequently asked questions

Are CD14-positive blasts the same as monocytes?
No. Monocytes are mature white blood cells, while blasts are immature cells. Some abnormal blasts may carry CD14, but the marker alone does not establish a diagnosis.
Does an abnormal result mean I have leukemia?
Not necessarily. An increased count can be associated with leukemia, but other clinical and laboratory findings are needed to determine the cause and make a diagnosis.
Will I need other blood tests?
Often, yes. Your clinician may order a complete blood count, peripheral blood smear, and a broader flow-cytometry panel to identify the abnormal cells and assess overall blood-cell health.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

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 17, 2026. · Read our editorial policy