Platelet count with differential (serum/plasma)
This test measures the number of platelets in your blood and breaks down their types for detailed assessment.
["Understanding your platelet count and types helps doctors diagnose bleeding disorders or clotting risks."]
Key facts at a glance
- LOINC
- 73262-8
- Short code
- Minoxidil ind plt IgM SerPl Ql FC
- Synonyms
- Minoxidil ind plt IgM SerPl Ql FC
- Category
- hematology
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- flow-cytometry
- CPT
- 82784
- 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 Platelets Matter in Blood Health
Platelets are tiny blood cells that help stop bleeding by clotting. This test checks their count and proportions to ensure they’re working properly. Low or high platelet counts can signal conditions like bleeding disorders, infections, or certain cancers.
How the Test Works
Blood is drawn and analyzed using automated technology to count platelets and differentiate between types (e.g., small, large, or immature platelets). The results help identify if platelet function or distribution is abnormal.
Common Reasons for Testing
Doctors may order this test if you have unexplained bruising, bleeding, fatigue, or symptoms like easy bruising, nosebleeds, or prolonged bleeding after cuts. It’s also used before surgeries or procedures that require blood thinning.
What to Expect Before the Test
No special preparation is needed, but inform your doctor about medications (like blood thinners) or recent illnesses. Avoid strenuous activity 24 hours before testing to ensure accurate results.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
Platelet Analysis
Frequently asked questions
Low platelet counts (thrombocytopenia) may indicate bone marrow disorders, infections, or medications. High counts (thrombocytosis) could signal chronic inflammation, cancer, or dehydration. Abnormal platelet distribution may hint at immune disorders or recent blood loss.
Will I need to do anything special after the test? No special follow-up is required unless your doctor notes any concerns in your results. If you’re on blood thinners, discuss any changes with your provider.
What if my platelet count is outside the normal range? If your results are abnormal, your doctor may recommend further tests or adjustments to your treatment plan, such as blood transfusions or medication changes.
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