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Test Code INSLN Insulin

Important Note

This test may be affected by biotin interference. Patients on high dose biotin (5mg/day or more) should not have samples drawn until at least 24 hours after the last biotin administration.

Specimen Type

Serum

Container/Tube

Red Top

Offsite Collection Instructions

1. Collect sample following standard collection methods, fasting
(8-14 hours) sample is recommeded.
2. Within 2 hours of collection the sample must be spun and
aliquoted
3. Transport refrigerated (2 – 8˚C)

Turnaround Time

4 hours

Test Includes

N/A

Preferred Volume

0.5 mL

UCMC Collection Instructions

1. Collect sample following standard collection methods, fasting
(8-14 hours) sample is recommeded.
2. Within 2 hours of collection the sample must be received in
Laboratory Service Center
3. Transport room temperature (15 – 25˚C)

Test Limitations

Circulating anti-insulin antibodies are often found in patients
who have been treated with nonhuman forms of insulin. If present,
these antibodies may interfere with the assay.

For individuals who are significantly overweight, fasting
insulin levels are typically somewhat higher than for adults of
normal weight.

Fee Code

43216

Specimen Minimum Volume

0.2 mL

DAY(S) AND TIME(S) PERFORMED

24 hours, 7 days a week including holidays.

STAT DAY(S) AND TIME(S) PERFORMED

N/A

CPT

83525

Method Name

Electrochemiluminescence Immunoassay (ECLIA)

Reference Values

Fasting: <28.5 microIU/mL

Reference ranges for Insulin that is ordered as part of a
specific stimulation/suppression protocol are specific to the
protocol utilized by the ordering physician and are therefore
subject to ordering physician’s nterpretation.

Reject Due To

Whole blood/unspun samples greater than 6 hours will be
rejected.

STAT Turnaround Time

N/A

Synonyms

N/A

Test Usage

Useful for monitoring and diagnosing diabetes, isulin-secreting
pancreatic tumors, and in the evaluation and management of patients
with the polycystic ovary syndrome.

Critical Results

N/A

Additional Information

N/A

Included in Additional codes

N/A

Coverage Information

N/A

Stability: Room Temp

n/a

Stability: Refrigerated

24 hours

Stability: Frozen

6 months