Discipline - Haematology
Platelet count
Facility level:
Assay formats
Haemocytometer, if automated haematology analyser is not available
Status history
First added in 2019
Changed in 2020
Purpose type
Determination of Physiological Status
To diagnose thrombocytopenia or thrombocytosis; Marker to manage severe infections associated with bleeding or sepsis (e.g. viral haemorrhagic fever, meningococcaemia) and certain haematological disorders Note: When used for emergency or critical care, results are time-sensitive.
Specimen types
Capillary whole blood, Venous whole blood

Summary of SAGE IVD recommendation

General In vitro diagnostics tests are the general core and routine laboratory tests for clinical chemistry, haematology, blood transfusion, microbiology (virology, bacteriology, parasitology and mycology) and histopathology. These tests were selected on the basis of the scientific validity of an analyte, i.e. the association between an analyte and a clinical condition or physiological state; and clinical utility. Many of these tests are required for effective management of patients and have already been described in WHO publications.

Details of submission from 2020

The inclusion of this entry was based on WHO guidelines and technical reports that include recommendations for the appropriate IVDs.