Final answer:
Marisa, who recently underwent medical treatment abroad and is suffering from severe symptoms, requires a CT scan for potential issues such as a large pelvic hematoma, which necessitates immediate medical care.
Step-by-step explanation:
The clinical focus case involving a 52-year-old woman, Marisa, presents a scenario where a CT scan of the abdomen is performed. This medical imaging is crucial in diagnosing conditions such as appendicitis, urinary tract infections (UTIs), or pelvic inflammatory disease (PID).
Marisa's symptoms, like severe abdominal pain and fever, alongside her recent medical history of being treated with catheterization and antimicrobial drugs, contribute to the complexity of her diagnosis. The CT scan helps explore possible complications such as a large pelvic hematoma, which may arise post-traumatically as indicated by Marisa's motor vehicle accident (MVA). The identification and management of a pelvic hematoma require prompt and careful medical attention due to potential risks such as internal hemorrhaging and the need for possible surgical intervention.