|Mnemonic: ||[OSM FRG]|
|Name: ||Osmotic Fragility, Erythrocyte|
|Specimen: ||5 mL whole blood from a Green heparin tube. Do not use gel barriers. Also submit 2 blood smears (unstained, air-dried, unfixed) from the heparinized sample. Lavender EDTA is also acceptable.|
Refrigerate specimens within 30 minutes of collection.
Collect Sunday - Wednesday. Testing is performed Monday - Friday. Notify lab before drawing.
|Minimum Spec: ||1 mL|
|Neonatal Spec: ||1 mL of heparin whole blood AND 2 blood smears (unstained, unfixed)|
|Transport Temp: ||Refrigerated|
|Spec Stability: ||Stable 3 days refrigerated.|
|Ref Lab/Code: ||ARUP 2002257|
| Method: ||Spectrophotometry|
|Processing Info: ||Testing must be performed within 48 hours of collection. Specimens should be received within 24 hours of collection. |
Send Sunday - Wednesday only. Collect the sample in the morning to make the noon courier.