Geisinger Proven Diagnostics Test Catalog

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ALT

SPECIMEN COLLECTION
Test code:
ALT
Specimen type:
Plasma or Serum*
Collection container:
Specimen Required:
2 mL of serum or plasma; minimum 0.2 mL.
Special notes:
All stat/line draw requests: Plasma separator tube.
All routine requests/off-site specimens: Serum separator tube.
Patient preparation:
None.

SPECIMEN PROCESSING
Specimen Processing Instructions:
Allow serum to clot. Centrifuge serum or plasma at 1100-2000 g for a minimum of 10 minutes. 
Transport temperature:
Refrigerated (preferred). Room temperature or frozen specimens also acceptable.
Specimen stability:
Room temperature: 2 days. Refrigerated: 7 days. Frozen: 3 months.
Rejection criteria:
Stability limits exceeded.

TEST DETAILS
Reference range:
ALT (U/L)
0 - <1 yr: <49
> 1 yr: Male: 10-50. Female: 10-35.
Critical Values/Courtesy Alerts:
Above 500 U/L.
Additional information:
None.
CPT code(s):
84460
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
Alanine aminotransferase (ALT)
Methodology:
Spectrophotometric (Colorimetric)
Synonyms:
SGPT
Clinical Significance:
ALT is useful in the diagnosis and management of certain liver disorders such as viral hepatitis and cirrhosis. Signfiicant elevations of ALT occur in diseases of the liver and hepatotoxicity.
Doctoral Director Review:
Jay Jones Ph.D.     Review Date: 02/04/2014

Performing Locations

Geisinger Medical Center

Performing laboratory: Automated Chemistry
Technical Lead: Larry Quinton
Frequency: Daily, Monday - Sunday
Performed stat? Y

Geisinger Wyoming Valley Medical Center

Performing laboratory: ATL+
Technical Lead: Melissa Whetstone    
Frequency: Daily, all shifts    
Performed stat? N

Geisinger Shamokin Area Community Hospital

Performing laboratory: Geisinger Shamokin Area Community Hospital
Technical Lead: Donna Costello    
Frequency: Daily, all shifts    
Performed stat? Y