Schedule an Appointment Pay Bill View My Results
Banner Image

Test Directory

Browse A-Z History Resources
Test Directory » AST/SGOT Aspartate Transaminase

AST/SGOT Aspartate Transaminase

Order Code: AST

Test Summary

AST is widely distributed throughout the tissues with significant amounts being in the heart and liver. Lesser amounts are found in skeletal muscles, kidneys, pancreas, spleen, lungs, and brain. Injury to these tissues results in the release of the AST enzyme to general circulation. In myocardial infarction, serum AST may begin to rise within 6-8 hours after onset, peak within two days and return to normal by the fourth or fifth day post infarction. An increase in serum AST is also found with hepatitis, liver necrosis, cirrhosis, and liver metastasis.

Aliases

  • Aspartate Aminotransferase
  • Aspartate Transferase
  • AST
  • AST (SGOT)
  • SGOT

Specimen Collection

Special Instructions

N/A

Preferred Specimen

1 mL serum

Minimum Volume

1 mL

Instructions

Barrier tubes (serum separator tubes or plasma separator tubes) are preferred. If non-barrier tubes are utilized, the serum/plasma must be removed immediately after centrifuging and placed in a screw-cap transfer tube.

Collection notes: Avoid hemolysis. Invert tubes at least 8 times. Allow to clot in an upright position for 30 minutes. Within 2 hours, centrifuge tubes 10 minutes. Keep tightly stoppered.

Do NOT re-centrifuge tubes. Do NOT freeze the primary collection tube.

Patient Preparation

N/A

Storage

Original tube preferred, may be sent in a screw-top transfer tube.

Transport Temperature

Room Temperature or Refrigerated

Specimen Stability

  • Room Temperature = 5 days
  • Refrigerated = 7 days
  • Frozen = 3 months

Limitations

N/A

Other Acceptable Specimens

Plasma from Lithium Heparin (Light Green Top) tube

Unacceptable Specimens

Hemolysis, Lipemia, incorrect specimen type, insufficient sample volume, improper storage conditions, exceeds specimen stability guidelines, contaminated sample.

Order Code

AST

EPIC (Premier) Code

LAB062

Includes

N/A

CPT Code

  • 84450

Billing Code

  • 300395

CPT Statement

CPT Statement

Methodology

Spectrophotometry (SP)

FDA Status

FDA Approved

Physician Attestation of Informed Consent

N/A

Testing Laboratory

CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine OH, 45439

Department

Chemistry

Reference Range

See Report

Setup Schedule / Expected Turnaround Time

24/7; Report available: Within 1 day of set up

Specimen Collection

Special Instructions

N/A

Preferred Specimen

1 mL serum

Minimum Volume

1 mL

Instructions

Barrier tubes (serum separator tubes or plasma separator tubes) are preferred. If non-barrier tubes are utilized, the serum/plasma must be removed immediately after centrifuging and placed in a screw-cap transfer tube.

Collection notes: Avoid hemolysis. Invert tubes at least 8 times. Allow to clot in an upright position for 30 minutes. Within 2 hours, centrifuge tubes 10 minutes. Keep tightly stoppered.

Do NOT re-centrifuge tubes. Do NOT freeze the primary collection tube.

Patient Preparation

N/A

Storage

Original tube preferred, may be sent in a screw-top transfer tube.

Transport Temperature

Room Temperature or Refrigerated

Specimen Stability

  • Room Temperature = 5 days
  • Refrigerated = 7 days
  • Frozen = 3 months

Limitations

N/A

Other Acceptable Specimens

Plasma from Lithium Heparin (Light Green Top) tube

Unacceptable Specimens

Hemolysis, Lipemia, incorrect specimen type, insufficient sample volume, improper storage conditions, exceeds specimen stability guidelines, contaminated sample.

Billing

CPT Code

  • 84450

Billing Code

  • 300395

CPT Statement

CPT Statement

Result Information

Methodology

Spectrophotometry (SP)

Testing Laboratory

N/A

Reference Range

See Report

Setup Schedule / Expected Turnaround Time

24/7; Report available: Within 1 day of set up