Why the test is performed
To examine the size, shape, maturity and distribution of blood cells under a microscope when counts or symptoms need clarification.
World time
Laboratory Testing Online / Hematology
Peripheral Blood Film
To examine the size, shape, maturity and distribution of blood cells under a microscope when counts or symptoms need clarification.Test profileHEPeripheral Blood Film
Test and specimen
What is being examined?
- Test
- Peripheral Blood Film
- Department
- Hematology
- Typical sample or measurement
- Fresh EDTA blood and prepared slide
Before the test
No special preparation is usually required; a fresh, correctly filled sample improves morphology.
Clinical interpretation
Laboratory results should be interpreted by a qualified professional using the correct reference interval, method, symptoms, history and other findings. A normal or abnormal value rarely confirms or excludes a condition by itself.
What the test is used for
Confirming automated-count abnormalities and identifying morphological clues that guide further investigation.
How the test is performed
A thin film of blood is spread on a glass slide, stained and examined by trained laboratory staff; findings are correlated with the CBC.
Conditions and diseases considered
May show patterns associated with anaemia, infection, haemolysis, malaria, platelet disorders, leukaemia or other marrow disease.
Recommended further tests
Reticulocyte count, malaria testing, haemoglobin electrophoresis, haemolysis screen, flow cytometry or bone-marrow examination as clinically indicated.
Primary public reference
Continue with the official patient guide.
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