Methodology
Osmotic Lysis
Synonyms
Fragility, Osmotic (RBC); RBC Fragility, Erythrocytes; Red Cell Fragility
Specimen Type
Whole Blood
Performing Lab
Mayo Medical Lab
Epic ID
LAB1134
Lab Test Days
Monday-Saturday
Standard TAT
2-5 Days
Collection Information
Specimen Required
2-4 mL Whole Blood
Container Type
Lavender (EDTA)
Collection Instructions
Collect Monday-Thursday or Friday before 1300 only, no weekends or holidays. Immediately refrigerated specimen after collection.
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-Only
Specimen Stability
Room Temp=Unacceptable; Refrigerated=72 Hours; Frozen=Unacceptable
Rejection Criteria
Mild hemolysis; Clotted
Test Volume Required
4 mL Whole Blood
Minimum Test Volume
2 mL Whole Blood
Processing Instructions
Immediately refrigerate specimens after collection. Collect a control specimen from a normal (healthy), unrelated, nonsmoking person at the same time as the patient. Collect (one) 2-4 mL in an EDTA (lavender-top) tube, label clearly on outermost label NORMAL CONTROL and immediately refrigerate specimen after collection. Submit patient's whole blood specimen and Control specimen to Mayo within 72 hours of collection. Order in Mayolink and send with Mayo courier Monday-Friday.
CPT Codes
85557
Revised
01-20-20
Initials
SL