3 results
What is Fecal Occult Blood Testing (FOBT)
 • Screening for colorectal cancer in average risk population
immunochemical test ... appropriate for GIB/anemia ... evaluation • ... to unnecessary testing ... FalsePositives #FalseNegatives
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
Gastrointestinal Evaluation ... Iron Deficiency Anemia ... • Additional laboratory ... Non-invasive testing ... Gastrointestinal #Evaluation
Causes of Inaccurate Fecal Occult Blood Test Results 

False Positive gFOBT:
Ingestion of nonhuman heme (eg, meat
Fecal Occult Blood Test ... medication #Guaiac #FOBT ... #OccultBlood #Testing ... #Laboratory #FalsePositive ... #FalseNegative