Test Name
OSMOTIC FRAGILITY TEST
Aliases
-
Abbreviations
OFT
Test Classification
GROUPED TEST
Department
HEMATOLOGY
Sub Department
GENERAL
TAT Category
ELAPSED (CONTINUOUS) TIME
Estimated TAT
5
TAT Units
DAYS
Test Requirements
Heparin (green top) vacutainer and smear freshly prepared from EDTA vacutainer.
Test components: Whole blood, NaCl solutions of varying concentrations, Red blood cells, Hemolysis observation
Clinical Utility
Evaluation of suspected hereditary spherocytosis. Does not distinguish between hereditary spherocytosis & autoimmune hemolytic anemia (AIHA).
Last Review
26th Feb 2026