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OCCULT BLOOD, STOOL

Synonym(s):

​Faeces For Occult Blood, Stool For Occult Blood

Description

Indications

Specimen Required

​Stool in screw-capped container delivered to the laboratory within 24 hours. Because of the non-homogeneity of stool, three consecutive samples may be sent (as three separate tests; i.e. do not pool stools over several days).

Storage and Transport

Method

​Immunochromatographic reaction using antibodies specific to human Hb

Test Results

​Positive:
Negative

Reference Interval / Value

Turnaround Time

​2 - 4 hours

Day(s) Test Set up

​Monday - Saturday

Remarks

Patient preparation and special precautions : 


Aspirin, non-steroidal anti-inflammatory drugs, corticosteroids, phenylbutazone, reserpine and alcohol can cause irritation of the gastric mucosa and occult bleeding in
some patients. These agents should be avoided for a minimum of two days prior to testing.

No specific dietary restrictions are necessary as this test is specific for human haemoglobin.

Patients with bleeding conditions (haemorrhoids and menstrual bleeding) are not considered appropriate for testing.

Change History Notes

Others

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