Collect in a gold top tube (Serum Separator Tube) or a gold top microtainer (Serum Separator Tube):
Gold Top Tube
(Serum Separator Tube)
OR
Microtainer Gold Top Tube
(Serum Separator Tube)
Specimen Preparation
Follow Central Lab Services processing protocol.
Storage/Transport Temperature
Room temperature
Stability (from collection to initiation)
Before separation from cells
After separation from cells
Room Temperature
≤ 2 hours
Room Temperature
≤ 8 hours
Refrigerated (2-8 C)
≤ 7 days
Frozen (-20 C)
≤ 3 months
Volume Required
1.0 mL blood
Minimum Required
0.5 mL blood
Phlebotomy Draw
Yes
Performing Lab
Chemistry Laboratory
Performed
Monday - Friday
7:30am - 4:00pm
Methodology
Chemiluminescent immunoassay
Reported
Within 1 weekday
LIS Mnemonic
INSUL
Available STAT
No
Interpretive Data
Moderate to grossly hemolyzed specimens may result in a reduced insulin concentration. Additional samples for repeat testing should be sent if clinically indicated.
Reference Ranges
Condition
Range
Fasting
2.0-20.0 uU/mL
Hypoglycemia
(Glu<50)
<2.0 uU/mL
CPT Codes
83525
Interpretive Data
Moderate to grossly hemolyzed specimens may result in a reduced insulin concentration. Additional samples for repeat testing should be sent if clinically indicated.
Collection
Collect
Collect in a gold top tube (Serum Separator Tube) or a gold top microtainer (Serum Separator Tube):
Gold Top Tube
(Serum Separator Tube)
OR
Microtainer Gold Top Tube
(Serum Separator Tube)
Specimen Preparation
Follow Central Lab Services processing protocol.
Storage/Transport Temperature
Room temperature
Stability (from collection to initiation)
Before separation from cells
After separation from cells
Room Temperature
≤ 2 hours
Room Temperature
≤ 8 hours
Refrigerated (2-8 C)
≤ 7 days
Frozen (-20 C)
≤ 3 months
Volume Required
1.0 mL blood
Minimum Required
0.5 mL blood
Phlebotomy Draw
Yes
Ordering
Performing Lab
Chemistry Laboratory
Performed
Monday - Friday
7:30am - 4:00pm
Methodology
Chemiluminescent immunoassay
Reported
Within 1 weekday
LIS Mnemonic
INSUL
Available STAT
No
Result Interpretation
Interpretive Data
Moderate to grossly hemolyzed specimens may result in a reduced insulin concentration. Additional samples for repeat testing should be sent if clinically indicated.
Reference Ranges
Condition
Range
Fasting
2.0-20.0 uU/mL
Hypoglycemia
(Glu<50)
<2.0 uU/mL
Administrative
CPT Codes
83525
Interpretive Data
Moderate to grossly hemolyzed specimens may result in a reduced insulin concentration. Additional samples for repeat testing should be sent if clinically indicated.
