INSULIN FREE
Insulin, Free and Total
EPIC Test Procedure Code: LAB3484
Synonyms:
INSFT
Performing Lab:
Referral Laboratory
Patient Preparation:
1. Fasting (8 hours)
2. For 12 hours before specimen collection do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins.
Container Type:
Serum Gel (Preferred), Red Top
Specimen Type:
Serum
Preferred Volume:
2.45 mL
Minimum Volume:
0.75 mL
Collection Procedure:
1. Avoid hemolysis
2. Label specimens with corresponding collection times.
3. Serum-gel tubes should be centrifuged within 2 hours of collection.
4. Red-top tubes should be centrifuged and aliquoted within 2 hours of collection.
5. Send specimen refrigerated
Specimen Processing:
Transfer the separated serum to a plastic transport tube.
Store and Transport:
Refrigerated
Stability:
Frozen - 180 days
Refrigerated - 14 days
Room temperature - 24 hours
Unacceptable Condition:
Gross Hemolysis: Reject
Autopsy/ Postmortem Specimen: Reject
CPT Codes:
83525 - Insulin Total (EAP 30040444)
83527 - Insulin Free (EAP 30040443)
Test Schedule:
Monday, Wednesday, Friday
Turnaround Time:
2-5 Days
Method:
Electrochemiluminescence Immunoassay (ECLIA)