Faecal Tests

Tests

Sample type

Test frequency

Reference range

Chymotrypsin

 

Not available

 

Elastase

Random faeces

Every 2 weeks

< 100 mg/g severe insufficiency

100-200 mg/g moderate insufficiency

> 200 mg/g normal 

Fat

 

Not available

Other tests available contact Duty Biochemist

Occult blood

3 random faeces

N.B. dietary restrictions

Daily

Pos or Neg

Reducing substances

Random faeces to reach lab within 4 hours

As required

Pos or Neg