Final answer:
A 29-year-old woman with UC and symptoms of fever, tachycardia, and tender abdominal distention may be experiencing a UC exacerbation or complication. Diagnostic studies like CBC, CRP, and abdominal imaging are necessary to identify the specific condition and guide treatment.
Step-by-step explanation:
The clinical presentation of a 29-year-old woman with a history of Ulcerative Colitis (UC) and symptoms including fever, tachycardia (heart rate of 120), abdominal distention, and acute tenderness suggests a possible exacerbation of UC or a complication related to UC, such as toxic megacolon or an intra-abdominal abscess. To diagnose the condition accurately, the following studies should be considered: a complete blood count (CBC) to assess for infection or inflammation, inflammatory markers such as C-reactive protein (CRP), stool studies if infectious colitis is considered, abdominal X-rays to evaluate for toxic megacolon, and abdominal CT scan to assess for abscesses or other complications. Based on the findings, further management, including possible hospitalization, gastrointestinal consultation, and intravenous (IV) corticosteroids or antibiotics, may be necessary.