This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
False positive rheumatoid factor can be associated with all except: 
Select and explain. 
A. Inflammatory bowel disease, B. HbsAg, C. VDRL, D. Coombs test
A: Inflammatory bowel disease
Answer: A: Inflammatory bowel disease 
Explanation: Answer is A (Inflammatory bowel disease): Enteropathic Ahis (Ahritis associated with inflammatory bowel disease) is a seronegative ahropathy that is characterized hr the absence of Rheumatoid factor. Causes of False Positive Rheumatoid factor SLE (Associated with a positive Coomb's test) Sjogren syndrome Chronic Liver disease Sarcoidosis Interstitial Pulmonary Fibrosis Infectious mononucleosis Hepatitis B (Associated with HbsAg) Tuberculosis Leprosy Syphilis (Associated with a positive VDRL) Subacute bacterial endocarditis Visceral leishmaniasis Schistosomiasis Malaria