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Test Code Billings Clinic: 4014 Amylase, Plasma or Serum

Performing Laboratory

Billings Clinic Laboratory: Chemistry

Useful For

  • Normal individuals have low but measureable serum amylase activity. 
  • Measeurement of amylase activity is of value in diagnosing pancreatitis and other pancreatic disorders, which result in elevation of serum amylase activity.

Methodology

Ethylidene-blocked p-nitrophenyl-maltoheptaoside Substrate (Jensen and Wydeveld)

Specimen Requirements

Submit only 1 of the following specimens:
Serum or plasma should be physically separated from cells as soon as possible with a maximum limit of two hours from the time of collection.


Plasma (Preferred)

  • Draw blood in a green-top (lithium heparin) tube(s).
  • Spin down and send 0.5 mL of heparinized plasma frozen.
  • Indicate plasma on request form.
  • Label specimen appropriately (plasma).

Serum

  • Draw blood in a plain, red-top tube(s) or a serum gel tube(s).
  • Spin down and send 0.5 mL of serum frozen.
  • Indicate serum on request form.
  • Label specimen appropriately (serum).

Storage/Stability

Specimen Type Temperature Time
Serum, Plasma Frozen >7 days
  Ambient 8 days
  Refrigerated 31 days

 

Reject Due To

  • Specimens collected in EDTA, citrate and oxalate
  • Specimens received refrigerated

Reference Values

23 - 108 IU/L

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

82150 - Amylase

LOINC Code Information

Reporting Name LOINC Code
Amylase, Blood 1798-8