For my mid-site evaluation, I presented a case of suspected hand-foot-mouth disease versus scabies. The patient was previously evaluated for acute otitis media and was prescribed amoxicillin for 10 days, with the rash developing on day 8 of treatment. My initial thought was a hypersensitivity reaction to the medication, as penicillin is a common cause of drug-induced exanthems. However, the physical exam was important, as the appearance and distribution of the rash were more consistent with hand-foot-mouth disease. Scabies was also considered because lesions were noted in the interdigital spaces. Ultimately, the patient was treated with permethrin and discharged. Even if hand-foot-mouth disease was the leading diagnosis, management would have been supportive, so the treatment approach covered the most likely possibilities.

This case taught me the importance of maintaining a broad differential and being flexible in my clinical reasoning, especially when different conditions can present similarly. Although I initially leaned toward a drug-induced exanthem based on timing, the physical exam findings pushed me to reconsider and include infectious etiologies. It also reinforced the importance of avoiding anchoring bias and using the full clinical picture to guide management. Overall, this experience strengthened my diagnostic approach and highlighted the importance of correlating history, exam findings, and clinical judgment in everyday practice.

In my final site evaluation, I presented a case of costochondritis. Although costochondritis is a relatively benign condition, an extensive workup was necessary to rule out more serious diagnoses such as pulmonary embolism and cardiac etiologies. The patient was a 17-year-old on oral contraceptive pills who presented with chest pain and acute onset of calf pain. Given these risk factors, I recognized that she was at increased risk for a pulmonary embolism, which warranted a thorough evaluation before arriving at a final diagnosis.

This case taught me the importance of prioritizing life-threatening conditions, even when the most likely diagnosis is benign. It reinforced the need to use clinical reasoning to guide decision-making, especially when risk factors significantly change the level of concern. Additionally, it highlighted how a detailed history, including medication use and associated symptoms, plays a critical role in determining the appropriate workup. Overall, this experience strengthened my ability to balance ruling out dangerous conditions while still recognizing common, less severe diagnoses in clinical practice.

Overall, these site evaluations helped me strengthen my clinical reasoning and become more confident in my approach to patient care. They taught me the importance of maintaining a broad differential, avoiding anchoring bias, and using both history and physical exam findings to guide decision-making. I also learned how to prioritize ruling out life-threatening conditions while still recognizing common, less severe diagnoses. In addition, I feel more confident presenting my cases and clearly explaining my reasoning behind my differentials and management plans. These experiences improved my ability to think through cases more systematically and apply clinical judgment in a real-world setting.