Final answer:
When a patient comes in with suspected cellulitis from hot tub exposure, monotherapy with a broad-spectrum antibiotic effective against P. aeruginosa like ciprofloxacin or levofloxacin is typically appropriate. Patient-specific factors must be considered, and clinical response should be monitored.
Step-by-step explanation:
Pt comes in with suspected of cellulitis on his back after spending a night at the hot tub. Cellulitis can often be caused by Streptococcus species which are usually sensitive to Penicillin. Considering the patient's recent hot tub exposure and potential contact with Pseudomonas aeruginosa, a Gram-negative pathogen commonly found in such environments, treatment should address this particular bacterium's likely resistance patterns. Monotherapy with a broad-spectrum antibiotic that is effective against P. aeruginosa, such as ciprofloxacin or levofloxacin, may be appropriate here. It is essential to consider patient-specific factors such as allergy history, renal function, and the presence of any other comorbidities before selecting an antibiotic. Moreover, it is critical to monitor the response to therapy and adjust treatment as needed based on clinical response and any culture and sensitivity results.