Clinics and Departments

Laboratory Services

Lab Dept:

Anatomic Pathology

Test Name:

LACTASE ON GI BIOPSIES

General Information

Lab Order Codes:

LTAS

Synonyms:

N/A

CPT Codes:

82657 – Enzyme activity in blood cells, cultured cells, or tissue, not elsewhere specified; nonradioactive substrate, each specimen

Test Includes:

Lactase level only reported in uM/min/gram protein.

Logistics

Test Indications:

N/A

Lab Testing Section:

Anatomic Pathology - Sendouts

Referred to:

Mayo Medical Laboratories, MML Test 91305/FDASC (forward to Joli Diagnostics, Inc., Joli test name: “Disaccharidase Determination (for Lactase only)”.

Phone Numbers:

MIN Lab: 612-813-6711

STP Lab: 651-220-6560

Test Availability:

Daily, 24 hours

Turnaround Time:

1 week

Special Instructions:

N/A

Specimen

Specimen Type:

Small Bowel biopsy

Container:

Small, tightly capped, plastic tube

Draw Volume:

5 mg small bowel biopsy specimen

Processed Volume:

Same Draw Volume

Collection:

Collect fresh tissue. Do not place tissue on gauze or filter paper, nor should any saline, support or embedding material be added.

Special Processing:

Lab Staff: Sample should be kept frozen and stored at –20 C to –70 C. Ship frozen. Forward promptly.

Patient Preparation:

Physician preference

Sample Rejection:

Thawed specimen; mislabeled or unlabeled specimen

Interpretive

Reference Range:

Lactase:

24.5 +/- 8.0 uM/min/gram protein; Abnormal <15.0

Critical Values:

N/A

Limitations:

N/A

Methodology:

Spectrophotometry

References:

Mayo Medical Laboratories August 2013
Joli Diagnostics
August 2013

Update:

2/15/2011: CPT update, previously listed as 89130.
8/14/2013: Method previously listed as Nucleic Acid Amplification Technology

   


  Lab Test Directory
    Chemistry
    Coagulation
    Flow/Immunology
    Hematology
    Microbiology/ Virology
    Other Fluids
    Pathology
    Serology
    Transfusion Services
    Urine/Stool

  Search Lab Test Directory
    List All Documents

  Lab Staff

  E-mail Lab Services