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# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Trypsin-Like Immunoreactivity, Cobalamin, Folate & Pancreatic Immunoreactivity, Canine or Feline
Test Code: VTPCFSO
Synonyms/Keywords
​TLI, PLI, Cobalamin (Vitamin B12), Folate
Test Components
​TLI, Cobalamin, Folate, PLI
Species
Canine, Feline
Test Category
Specimen Requirements
Fasting Required ​Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)

Yes

12-18 hour fast for non-diabetic patients

6 hour fast for diabetic patients​

​Serum ​Red Top Tube (RTT) ​Serum Separator Tube (SST) ​1 mL ​0.9 mL
Collection Processing Instructions

Pancreatic function must be assessed before these results can be interpreted since they may be abnormal in animals with Exocrine Pancreatic Insufficiency (EPI).

Samples should be frozen as soon as possible.

Specimen Stability Information
Specimen Type Temperature Time
​Serum ​ Room Temperature <24 hours
Refrigerated 48 hours
​Frozen (preferred) Indefinitely
Interference
​Hemolysis and non-fasting status may interfere with results.  Serum folate shows limited stability at room temperature.  Therefore, serum samples for folate analysis should be kept at 4º C (refrigerator temperature) for no longer than 48 hours, freezing is preferred.
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Texas A&M Gastrointestinal Lab ​Monday through Friday ​1-2 days

TLI - RIA

PLI - ELISA

Cobalamin/Folate - Chemiluminescence

Marshfield Center Laboratory Section
Reference Lab
Reference Lab Information
Address Telephone Website Link Marshfield Lab Account #
Gastrointestinal Laboratory
4474 TAMU
College of Veterinary Medicine
Texas A&M University 

 

College Station, TX 77843-4474

 

​Ph 979-862-2861

Fax 979-862-2864

​vetmed.tamu.edu/gilab ​68-026314
Reference Intervals
Performing Location Canine Reference Intervals Feline Reference Intervals​
Texas A&M Gastrointestinal Lab​

​TLI:  5.7-45.2 ug/L

Cobalamin:  251-908 ng/L

Folate:  7.7-24.4 ug/L

PLI:  0-200 ug/L

​TLI:  12.0-82.0 ug/L

Cobalamin:  290-1500 ng/L

Folate:  9.7-21.6 ug/L

PLI:  0-3.5 ug/L

Synonyms/Keywords
​TLI, PLI, Cobalamin (Vitamin B12), Folate
Test Components
​TLI, Cobalamin, Folate, PLI
Species
Canine, Feline
Test Category
Specimen Requirements
Fasting Required ​Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)

Yes

12-18 hour fast for non-diabetic patients

6 hour fast for diabetic patients​

​Serum ​Red Top Tube (RTT) ​Serum Separator Tube (SST) ​1 mL ​0.9 mL
Collection Processing Instructions

Pancreatic function must be assessed before these results can be interpreted since they may be abnormal in animals with Exocrine Pancreatic Insufficiency (EPI).

Samples should be frozen as soon as possible.

Specimen Stability Information
Specimen Type Temperature Time
​Serum ​ Room Temperature <24 hours
Refrigerated 48 hours
​Frozen (preferred) Indefinitely
Interference
​Hemolysis and non-fasting status may interfere with results.  Serum folate shows limited stability at room temperature.  Therefore, serum samples for folate analysis should be kept at 4º C (refrigerator temperature) for no longer than 48 hours, freezing is preferred.
Reference Intervals
Performing Location Canine Reference Intervals Feline Reference Intervals​
Texas A&M Gastrointestinal Lab​

​TLI:  5.7-45.2 ug/L

Cobalamin:  251-908 ng/L

Folate:  7.7-24.4 ug/L

PLI:  0-200 ug/L

​TLI:  12.0-82.0 ug/L

Cobalamin:  290-1500 ng/L

Folate:  9.7-21.6 ug/L

PLI:  0-3.5 ug/L

Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Texas A&M Gastrointestinal Lab ​Monday through Friday ​1-2 days

TLI - RIA

PLI - ELISA

Cobalamin/Folate - Chemiluminescence

Laboratory Section
Reference Lab
Reference Lab Information
Address Telephone Website Link Marshfield Lab Account #
Gastrointestinal Laboratory
4474 TAMU
College of Veterinary Medicine
Texas A&M University 

 

College Station, TX 77843-4474

 

​Ph 979-862-2861

Fax 979-862-2864

​vetmed.tamu.edu/gilab ​68-026314
For most current information refer to the Marshfield Laboratory online reference manual.