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Test Code MALP Malabsorption Evaluation Panel, Feces

Specimen Required

Supplies: Malabsorption Panel (T920)

Container/Tube: Malabsorption kit or 2 small stool containers

Specimen Volume: 18 g split between 2 containers, each containing half of the specimen

Collection Instructions:

1. Collect a fresh, random fecal specimen, no preservative.

2. Split specimen between 2 small containers, each containing half of the specimen.

3. Label one small container with the A1AF and UREDF sample collection labels. Label the other small container with the CALPR, ELASF sample collection label.

4. Freeze immediately

Additional Information:

1. Specimen must be split prior to transport.

2. Testing cannot be added to a previously collected specimen.

3. Specimen cannot be collected from a diaper.

Secondary ID


Useful For

Evaluation of patients with suspected malabsorption, as suggested by chronic diarrhea, unexplained weight loss, or nutritional deficiencies


Differentiation between causes of malabsorption, specifically inflammatory conditions, pancreatic insufficiency, and osmotic diarrhea


Detection of protein-losing enteropathy that may be associated with an underlying malabsorption

Profile Information

Test ID Reporting Name Available Separately Always Performed
A1AF Alpha-1-Antitrypsin, Random, F Yes Yes
CALPR Calprotectin, F Yes Yes
ELASF Pancreatic Elastase, F Yes Yes
UREDF Reducing Substance, F Yes Yes

Method Name

A1AF: Nephelometry

CALPR, ELASF: Enzyme-Linked Immunosorbent Assay (ELISA)

UREDF: Benedict’s Copper Reduction Reaction

Reporting Name

Malabsorption Evaluation Panel, F

Specimen Type


Specimen Minimum Volume

5 g

Specimen Stability Information

Specimen Type Temperature Time Special Container
Fecal Frozen 7 days

Reject Due To

Urine and feces mixed
Specimens collected from diapers
Feces collected in any preservative or fixative

Reference Values


≤54 mg/dL



<50.0 mcg/g (Normal)

50.0-120 mcg/g (Borderline)

>120 mcg/g (Abnormal)

Reference values apply to all ages.



<100 mcg/g (Severe pancreatic insufficiency)

100-200 mcg/g (Moderate pancreatic insufficiency)

>200 mcg/g (Normal)

Reference values apply to all ages.



Negative or trace

Day(s) Performed

Monday through Friday

Report Available

4 to 6 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

See Individual Test IDs

CPT Code Information





LOINC Code Information

Test ID Test Order Name Order LOINC Value
MALP Malabsorption Evaluation Panel, F 101803-5


Result ID Test Result Name Result LOINC Value
ELASF Pancreatic Elastase, F 25907-7
6215 Reducing Substance, F 11060-1
AAT_F Alpha-1-Antitrypsin, Random, F 9407-8
CALPR Calprotectin, F 38445-3