Osmotic Fragility, Erythrocyte

Source	Blood
Mnemonic	OF
Specimen Requirements	Adult: 3 x 5 mL lavender top EDTA tubes Pediatric: 3 x (short draw 3 mL) lavender top EDTA tubes Order CBCR(CBC) and RETR(RET) for 2nd lavender top EDTA tube. Order DAT for 3rd lavender top EDTA tube. Whole blood
Specimen Handling	DO NOT centrifuge specimens. Extra Regional: Call Special Hematology (403-944-1975) for handling directions.
Additional Information	Testing date must be booked prior to collection, call Special Hematology (944-1975)
Testing Location	Special Hematology
Testing Frequency	Monday - Thursday (as required)
Alternate Name(s)	Red Blood Cell Osmotic Fragility, Erythrocyte Fragility
Reference Interval

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