Final answer:
The patient's high fever, elevated heart rate, and increased white blood cell count suggest that the cellulitis may be of moderate to severe severity, but a definitive diagnosis requires further clinical information.
Step-by-step explanation:
The patient AM presents with a diagnosis of uncomplicated cellulitis, a fever of 39ºC, heart rate (HR) of 95, and a white blood cell (WBC) count of 11 (noting an earlier WBC of 8). Based on the information provided, it is challenging to categorize the severity of the cellulitis definitively. However, commonly, mild severity cellulitis would not associate with such high fever. Moderate cellulitis usually presents with systemic signs such as a mild fever and may or may not affect vital signs like heart rate, but the fever here is quite high. Severe cellulitis can be suspected when there are signs of systemic infection, such as a high fever, elevated heart rate, and increased WBC, which corresponds with the given patient's parameters. Therefore, it is possible that the severity of AM's condition leans more towards moderate to severe severity, though a definitive diagnosis would require additional clinical information and judgement from a healthcare provider.