Aspartate Transaminase

Message

Serum AST is one of a group of enzymes which catalyzes the interconversion of amino acids and keto acids by transfer of amino groups. Transaminases are widely distributed in body tissues with significant amounts found in the heart and liver.

Test Code

AST

Alias/See Also

LAB3000114
AST
SGOT

CPT Codes
84450

Preferred Specimen

2.0 mL serum collected in a gold serum separator tube (SST)

Patient Preparation
None

Minimum Volume

0.5 mL serum

Other Acceptable Specimens

2.0 mL serum collected in an orange rapid clot serum separator tube (RCT)

Specimen Stability

24 hours at Room Temperature (15-25^oC)
4 weeks when Refrigerated (2-8^o)
1 year when frozen at <-20^oC

Report Available

Report available same day

Reference Range

Sex	Age	Reference Range
M/F	0 - 7 days	13 - 80 U/L
M/F	8 days - 150 years	13 - 40 U/L

Performing Laboratory
Penn Medicine Lancaster General Hospital
Penn Medicine Women and Babies

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.