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Back to Test Catalogue
Test ID: HGCAS

Hypoglycemic Agent Screen, Serum

Test Overview

Clinical Utility

Evaluation of suspected insulinoma characterized by hypoglycemia and increased serum insulin concentration.
Detecting drugs that stimulate insulin secretion.
Drugs detected by this procedure are:

  • The first-generation sulfonylureas: chlorpropamide (Diabinese), tolazamide, and tolbutamide (Orinase)
  • The second-generation sulfonylureas: glimepiride (Amaryl), glipizide (Glucotrol), and glyburide (Glibenclamide)
  • The meglitinides: repaglinide (Prandin) and nateglinide (Starlix)
  • The thiazolidinediones: pioglitazone (Actos) and rosiglitazone (Avandia)

This test is not intended for therapeutic drug monitoring but could be used to monitor compliance.

Method

Liquid chromatography-tandem mass spectrometry (LC-MS/MS)

Result Included

Chlorpropamide; Glimepiride; Glipizide; Glyburide; Nateglinide; Pioglitazone; Repaglinide; Rosiglitazone; Tolazamide; Tolbutamide

Aliases/Synonyms

Amaryl; Chlorpropamide; Dymelor; Glimepiride; Glipizide; Glucotrol; Glyburide; Meglitinides; Micronase; Prandin; Repaglinide; Sulfonylurea Hypoglycemic Serum; Sulfonylureas; Tolazamide; Tolinase; Acetohexamide; Dymelor; Orinase; Tolbutamide; Diabinese; Chlorpropamide; HYPOG; Diabinese; Actoplus Met; Actos; Avandamet; Glibenclamide; Glubrava; Glucophage; Lobeglitazone; Meglitinide; Nateglinide; Novonorm; Orinase; Pioglitazone; Piomet; Politor; PPAR; Rosiglitazone; Starlix; Surepost; Thiazolidinedione; Tolazamide; Tolbutamide; Tolinase; Troglitazone; Hypoglycemic Agents

Specimen

Specimen Type

Serum

Containers

Collection Containers

Red top (no additive)

Volume

Sample Volume

1.5 mL

Minimum Volume

0.5 mL

Patient Preparation

Specimen must be collected during an episode of hypoglycemia.

Stability

Ambient Refrigerated Frozen
7 days 28 days 28 days

Rejection Criteria

Criteria Specification
Specimen Gel-separator tubes

Performance & Interpretation

Turnaround Time

8 days

Results

Name
Units
Reference Range
Conversion
  1. Chlorpropamide
    Negative

    Comment

    Screening cutoff concentration: 100 ng/mL

  2. Glimepiride
    Negative

    Comment

    Screening cutoff concentration: 20 ng/mL

  3. Glipizide
    Negative

    Comment

    Screening cutoff concentration: 5 ng/mL

  4. Glyburide
    Negative

    Comment

    Screening cutoff concentration: 5 ng/mL

  5. Nateglinide
    Negative

    Comment

    Screening cutoff concentration: 5 ng/mL

  6. Pioglitazone
    Negative

    Comment

    Screening cutoff concentration: 20 ng/mL

  7. Repaglinide
    Negative

    Comment

    Screening cutoff concentration: 5 ng/mL

  8. Rosiglitazone
    Negative

    Comment

    Screening cutoff concentration: 20 ng/mL

  9. Tolazamide
    Negative

    Comment

    Screening cutoff concentration: 50 ng/mL

  10. Tolbutamide
    Negative

    Comment

    Screening cutoff concentration: 20 ng/mL

Referral Location

Out-of-Country

Interface & Setup

HL7 Interface Codes

Order Code Result Name Result Codes Units
HGCAS Tolbutamide 62021 ng/mL
Tolazamide 62020 ng/mL
Repaglinide 62025 ng/mL
Pioglitazone 64293 ng/mL
Nateglinide 64292 ng/mL
Glyburide 62024 ng/mL
Glipizide 62023 ng/mL
Glimepiride 62022 ng/mL
Chlorpropamide 62019 ng/mL
Acetohexamide 62018 ng/mL
Rosiglitazone 64294 ng/mL

Test Version

Last Updated

2025-11-17