Complete Blood Count with Platelet Count (Peripheral Blood)
This test measures your blood’s red blood cells, white blood cells, and platelets, along with a detailed count of platelets. It helps assess overall health, detect infections, bleeding disorders, or anemia.
["A CBC with platelet count helps diagnose and monitor blood-related conditions."]
Key facts at a glance
- LOINC
- 24358-4
- Short code
- CBC WO Platelets Bld
- Synonyms
- CBC WO Platelets Bld
- Category
- hematology
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 150
- Ref high
- 400
- Critical range
- 50 N/A – 1000 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 85049
- SNOMED
- 900000000000003003
- 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 Does a CBC with Platelet Count Measure?
Your blood is analyzed for three main components: red blood cells (RBCs), white blood cells (WBCs), and platelets. Platelets specifically are tiny blood cells that help prevent bleeding by clotting. The test also checks for variations in cell size and shape, which can indicate underlying issues like anemia or infections.
Why Might Your Doctor Order This Test?
A CBC with platelet count is commonly used to monitor conditions like anemia, infections, blood disorders (such as leukemia), or to check for signs of bleeding or clotting problems. It’s also part of routine check-ups or before surgeries.
How Is This Test Performed?
A small blood sample is drawn from a vein, usually in your arm. The sample is then sent to a lab where it’s analyzed using automated machines to count and examine cells. Platelets are specifically measured to ensure they’re functioning properly.
What Are Common Results and Their Meanings?
While exact values vary by lab, lower platelet counts may suggest bleeding disorders or bone marrow issues, while higher counts could indicate infections or other conditions. Red blood cell counts help identify anemia, and white blood cell counts can signal infections or immune system problems.
Reference range
Adult: 150-400 x 10^9/LN/A
No special preparation required. Stay well hydrated.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: When Platelet Counts Are Abnormal
Short name
CBC with Platelet Count
Frequently asked questions
What are the normal reference ranges for this test?
How long does it take to get results from this test?
Can I eat or drink anything 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