P-LCR (Platelet Large Cell Ratio) measures the percentage of large platelets in the blood. Large platelets are often younger and more active.
Category: Complete Blood Count
Also known as: p-lcr, plcr, plc-r, platelet large cell ratio, large platelet ratio
Reference range: 15–35 % (Source: ABIM)
Standard unit: %
High values may indicate
High P-LCR may indicate active platelet production, often seen in immune thrombocytopenic purpura (ITP), hyperthyroidism, or after blood loss.
Low values may indicate
Low P-LCR indicates a lower proportion of large platelets and is generally not clinically significant.
Source: MedlinePlus, U.S. National Library of Medicine
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