Lipase

Label Mnemonic:	LPSE
Epic code:	LAB99
Downtime form:	A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery

Chemistry
6240 RCP
356-3527

Specimen(s):

Plasma

Collection Medium:

Plasma Separator Tube 4.5 mL

Alternate Collection Media:

Call laboratory for additional acceptable specimen collection containers.

Minimum:

3 mL whole blood from light green top tube or ONE Microtainer^® for pediatric patients.

Testing Schedule:

24 hrs/day, 7 days a week, including holidays.

Turn Around Time:

1 hour (upon receipt in laboratory)

Reference Range:

13-60 U/L

Comments:

Refer to BD Microtainer^® Tubes product sheet for detailed sample collection instructions.

This test is also performed in the Iowa River Landing (IRL) clinical laboratory (for specimens drawn at that site).

Test Limitations:

Criterion: Recovery within plus or minus 10% of initial values at 
a lipase activity of 50 U/L.

Icterus: No significant interference up to an I index of 50 
(approximate conjugated and unconjugated bilirubin concentration: 50 
mg/dL).

Hemolysis: No significant interference up to an H index of 1000 
(approximate hemoglobin concentration: 1000 mg/dL).

Lipemia (Intralipid): No significant interference up to an L index of 
2000 (approximate triglycerides concentration: 4000 mg/dL). There is 
poor correlation between turbidity and triglycerides concentration.

References:
Glick MR, Ryder KW, Jackson SA. Graphical Comparisons of Interferences 
in Clinical Chemistry Instrumentation. Clin Chem 1986;32:470-474.

Kaiser H. Fresenius Zeitschr Anal Chem 1965;209: 1-18.

Methodology:

Spectrophotometric

CPT Code:

83690