Amylase Isoenzymes

Message

Non-Interface to QNI, place order in Quanum

Test Code

AMYISO

Quest Code

845

CPT Codes
82150 (x2)

Includes

Amylase
Pancreatic Isoenzyme
Salivary Isoenzymes (calculated)

Preferred Specimen

Plasma collected in: Sodium heparin (green-top) tube

Minimum Volume

0.5 mL

Other Acceptable Specimens

None

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 14 days
Frozen: 21 days

Methodology
Enzymatic

Setup Schedule

Set up: Tues-Sat; Report available: 1-3 days

Limitations

Oxalate, citrate, and lipemic sera can decrease results.

Reference Range

Amylase	21-101 U/L
Pancreatic Isoenzyme	16-46 U/L
Salivary Isoenzymes	4-61 U/L

Clinical Significance

Amylase measurements are used primarily for the diagnosis and treatment of pancreatitis. The elevation of a-amylase activity in serum, however, is not specifically indicative of a pancreatic disorder since the enzyme is also produced by the salivary glands and other organs.
Clinical evaluations of patients with acute pancreatitis have shown that pancreatic isoamylase has a greater sensitivity than total amylase.

Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130

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.