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What Can a Drop of Blood Show Us Under a Microscope?
What Can a Drop of Blood Show Us Under a Microscope?
A fresh blood sample allows us to visually observe red blood cells and structures that may appear as the sample changes and begins to clot.
What can be observed?
Red blood cells
Red blood cells, also called erythrocytes, normally have a flexible biconcave shape that supports their role in transporting oxygen through the body.
Rouleaux
Some red blood cells may appear arranged like stacked coins. This visual pattern is known as rouleaux.
Fibrin
As the sample begins to clot, fibrin may form a fine network that helps stabilise the developing clot.
Important to know
The appearance of a blood sample can be influenced by the collection method, sample preparation, pressure from the cover glass, temperature and the time elapsed after collection.
Microscopic observation of a fresh blood drop is educational and informational only. It cannot determine blood viscosity, laboratory values or a medical diagnosis, and it does not replace laboratory testing or examination by a healthcare professional.
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