It's the only card for this question and the extra section is word by word from UW
"Adults most commonly develop a polyarticular, symmetric arthritis (60% of cases) involving peripheral joints, including the hands (metacarpophalangeal [MCP], proximal interphalangeal [PIP], and wrist), knees, and ankles. Arthritis due to parvovirus B19 typically does not cause joint destruction or chronic arthritis. Other possible nonspecific findings include fever, fatigue, and diarrhea. Parvovirus B19 infection is diagnosed by detecting anti-B19 IgM antibodies in the serum, which develop within 10-15 days of infection and usually remain positive for 1-6 months. The symptoms typically resolve spontaneously in 2-3 weeks without the need for specific treatment."
I made some changes here
- Added mimic RA as UW table "(resembles RA)"
- Added a part about the diagnosis "The UW quesitio is asking about the diagnosis and the answer is IgM" and i couldn't find this anywhere in the deck
Source: UWorld - Step 2 3172