Occult Blood (Stool) Report Format
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What is the Occult Blood Test in Stool?
The stool occult blood test detects hidden (occult) blood in the feces that is not visible to the naked eye. It is commonly used for screening gastrointestinal bleeding, polyps, ulcers, or colorectal cancer.
What is an Occult Blood Stool Report Format?
An occult blood report indicates whether blood is present in the stool. It provides a qualitative result (positive/negative) and aids in early diagnosis of gastrointestinal conditions.
Tests Included in Occult Blood (Stool) Report
Test | Description |
Fecal Occult Blood Test (FOBT) | Detects microscopic traces of blood in the stool using chemical or immunological methods. |
Key Parts of an Occult Blood Report
Key Part | Description |
Sample Type | Fresh stool specimen. |
Test Method | Guaiac-based or Immunochemical (iFOBT/FIT). |
Result | Reported as Positive or Negative. |
Clinical Notes | Indicates the need for further evaluation if positive. |
Reference Range for Occult Blood (Stool) Report
Result | Interpretation |
Negative | No occult blood detected |
Positive | Occult blood detected in stool sample |
Parameters to Consider in Occult Blood Report
Parameter | Interpretation |
Positive Result | May indicate bleeding in the GI tract—suggestive of ulcers, cancer, or hemorrhoids. |
False Positives | Can occur with red meat, NSAIDs, or certain fruits and vegetables. |
False Negatives | May result from improper sample collection or storage. |
Follow-Up | Endoscopy, colonoscopy, or repeat FOBT may be required. |
Guidelines for Occult Blood Stool Report Format
Guideline | Description |
Dietary Restrictions | Recommend avoiding red meat, raw vegetables, and vitamin C before testing (for guaiac tests). |
Collection Instructions | Use clean, dry container; avoid urine contamination. |
Repeat Testing | Multiple samples increase test accuracy—often 3 over consecutive days. |
What Do the Results Mean?
Result Type | Interpretation |
Negative | No evidence of hidden blood—low likelihood of GI bleeding. |
Positive | Suggests GI tract bleeding—further investigation needed. |
Occult Blood (Stool) Report Interpretation
Test | Interpretation |
FOBT/iFOBT | Screens for hidden gastrointestinal bleeding. Positive results warrant follow-up with imaging or endoscopy. |
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