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October, 2026
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Neysa Rahardjo: Platelet Estimation Pitfalls and Discrepancy Resolution
Oct 11, 2026, 15:07

Neysa Rahardjo: Platelet Estimation Pitfalls and Discrepancy Resolution

Neysa Rahardjo, Laboratory Manager at Rumah Sakit TNI AD Tk III 04.06.01 Wijayakusuma and RS Hermina Purwokerto, shared a post on LinkedIn:

“Platelet Estimation Pitfalls: Small Details, Significant Consequences

The Barbara Brown method is useful for platelet estimation, but several factors can compromise accuracy:

  • Platelet clumping and satellitism.
  • Giant or small platelets.
  • Uneven platelet distribution.
  • Poor smear quality or staining.
  • An unvalidated multiplication factor.

How can we improve accuracy?

  • Examine the entire smear and select a representative monolayer.
  • Standardize field selection and counting procedures.
  • Verify the multiplication factor locally.
  • Correlate smear findings with analyzer results and clinical information.

Remember: Microscopic platelet estimation requires more than counting. Morphology, methodology, and clinical correlation matter.

How does your laboratory handle discrepancies between automated platelet counts and smear estimates?”

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