Sign in →

Test Code LAB178 Amylase, Body Fluid

Performing Laboratory

Barnes-Jewish Hospital Laboratory

Methodology

Enzymatic

Literature Reference:

Package insert: Amylase AMYL2 reagent. Roche Corporation, 12/2019.

Specimen Requirements

Specimen Type: Pleural fluid, Ascites fluid, J-P fluid, pancreatic cyst fluid

Container/Type: Mint Green tube

Specimen Volume: 2 mL

 

Additional Information: Indicate fluid type on specimen container.

Day(s) Test Set Up

Monday through Sunday

Turnaround Time:
STAT: 1 hour after receipt in laboratory 
Routine: 2 to 4 hours after receipt in laboratory

Test Classification and CPT Coding

82150

Reference Values

Ratio of pleural to serum amylase >1.0 is indicative of pancreatic excretions in the pleural fluid.

Ascites Fluid amylase is normally equivalent to serum levels, but elevated levels are indicative of pancreatitis or pancreatic secretions.

Ratio of JP fluid to serum amylase >3.0 is indicative of pancreatic fistula.

Pancreatic cyst fluid amylase <250 U/L is indicative of benign serous cyst.

 

Literature References:

Block, Darci R. Tietz Textbook of clinical Chemistry and Molecular Diagnositics. Elsevier Sixth Edition 2017. Body Fluids Abstract p. 925

ARUP Test directory, Body Fluid Reference Intervals and/or Interpretative Information.

 

Specimen Transport Temperature

Ambient

Additional Information

For BJH Laboratory Use Only

Alternate Tube Type: Red top tube


Analyte Stability:

See Analyte Stability Chart under General Information for a complete list.

 

Laboratory Processing Instructions:

Test performed in BJH Core lab. If specimen is received in a VACUTAINER, check procedure to confirm suitability. Centrifuge upon receipt. Apply blue tape to specimen aliquot tube. Deliver to the Cobas8000 for analysis. Completed specimens are stored frozen for 30 days.

LOINC Code Information

 

Fluid Type

Loinc code

Pleural Fluid

1796-2

Ascites Fluid

1797-0

J-P Fluid

43816-8

Pancreatic Cyst Fluid

43816-8