Insulin, Fasting
0070063
Ordering Recommendation
Aids in the detection of insulinoma. Do not use to diagnose diabetes mellitus.
Mnemonic
INSULIN FT
Methodology
Quantitative Chemiluminescent Immunoassay
Performed
Sun-Sat
Reported
Within 24 hours  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Serum separator tube. Also acceptable: Lavender (EDTA) or pink (K2EDTA).  
Specimen Preparation
Allow specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min 0.5 mL)  
Storage/Transport Temperature
Frozen.  
Unacceptable Conditions
Heparinized plasma. Vitreous or I.V. fluids. Specimens collected in gray (sodium fluoride/potassium oxalate). Hemolyzed specimens.  
Remarks
  
Stability
After separation from cells: Ambient: 8 hours; Refrigerated: 1 week; Frozen: 1 month  
Reference Interval
3-19 µIU/mL  
Interpretive Data
This test reacts on a nearly equimolar basis with the analogs insulin aspart, insulin glargine, and insulin lispro. Insulin detemir exhibits approximately 50 percent cross-reactivity. Test reactivity with insulin glulisine is negligible (<3 percent). To convert to pmol/L, multiply µIU/mL by 6.0.  
Note
 
CPT Code(s)
83525
Components
Component Test Code*Component Chart Name
0070063Insulin, Fasting
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Aliases