Alanine Aminotransferase (ALT) (REFL)

Test Code

15219

CPT Code(s)

84460

Test Code

15219

CPT Code(s)

84460

This test is not available in all locations. Please provide SERVICE AREA INFORMATION to confirm Test Code for the lab that services your account or to find available tests you can order.

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Clinical Significance

Alanine Aminotransferase (ALT) (REFL) - Alanine Aminotransferase (ALT) measurements are particularly useful in the diagnosis and management of certain liver diseases, e.g., viral hepatitis and cirrhosis. ALT activity in tissue is generally much lower than aspartate aminotransferase (AST) activity and is found in highest concentrations in the liver. Significant elevations of ALT occur only in diseases of the liver. ALT is often measured in conjunction with AST to determine whether the source of the AST is the liver or the heart. ALT is normally not elevated in cases of myocardial infarction, i.e., a normal ALT, in conjunction with an ...

Test Resources

None found for this test
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Test Details

Includes

This is a client specific reflex test. Reflex criteria has been pre-defined by the ordering physician. Additional testing will be performed at an additional charge.

Patient Preparation

The assay manufacturer, Beckman Coulter, warns that patients treated with sulfasalazine may generate false low results for ALT.

Methodology

Spectrophotometry (SP)

Reference Range(s)

	Male (U/L)	Female (U/L)
<1 Month	3-25	3-25
1-11 Months	4-35	3-30
1-3 Years	5-30	5-30
4-12 Years	8-30	8-24
13-15 Years	7-32	6-19
16-19 Years	8-46	5-32
≥20 Years	9-46	6-29

Alternative Name(s)

SGPT

LOINC® Codes, Performing Laboratory

Service Area must be determined

Includes

This is a client specific reflex test. Reflex criteria has been pre-defined by the ordering physician. Additional testing will be performed at an additional charge.

Patient Preparation

The assay manufacturer, Beckman Coulter, warns that patients treated with sulfasalazine may generate false low results for ALT.

Methodology

Spectrophotometry (SP)

Reference Range(s)

	Male (U/L)	Female (U/L)
<1 Month	3-25	3-25
1-11 Months	4-35	3-30
1-3 Years	5-30	5-30
4-12 Years	8-30	8-24
13-15 Years	7-32	6-19
16-19 Years	8-46	5-32
≥20 Years	9-46	6-29

Alternative Name(s)

SGPT

LOINC® Codes, Performing Laboratory

Service Area must be determined

Preferred Specimen(s)

1 mL serum

Alternative Specimen(s)

Sodium heparin (green-top) tube • Lithium heparin (green-top) tube

Minimum Volume

0.5 mL

Transport Container

Serum separator tube (SST)

Transport Temperature

Room temperature

Specimen Stability

Serum and plasma
Room temperature: 72 hours
Refrigerated: 5 days
Frozen: Unacceptable

Reject Criteria

Anticoagulants other than heparin

Setup Schedule

Service Area must be determined

Preferred Specimen(s)

1 mL serum

Alternative Specimen(s)

Sodium heparin (green-top) tube • Lithium heparin (green-top) tube

Minimum Volume

0.5 mL

Transport Container

Serum separator tube (SST)

Transport Temperature

Room temperature

Specimen Stability

Serum and plasma
Room temperature: 72 hours
Refrigerated: 5 days
Frozen: Unacceptable

Reject Criteria

Anticoagulants other than heparin

Setup Schedule

Service Area must be determined

This test is not available in all locations. Please provide ACCOUNT INFORMATION NEEDED to confirm Test Code for the lab that services your account or to find available tests you can order.

In-home collection may be available in your area for purchase through Quest Mobile.

Test Details

Clinical Significance

Test Resources

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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