My brother was admitted to hospital with pericarditis a month or so ago. He was sent home after 4 days. He then had a follow up out patients appointment for blood tests. He has been hassling the hospital for the results, and yesterday got a letter from the consultant saying "The antinuclear factor is still positive, although more specific tests for the antinuclear factor have in fact been negative and normal." Does this make sense to anyone - it seems completely contradictory to me! Help! Please?