Final answer:
To monitor treatment response in osteomyelitis, tracking the white blood cell count, particularly neutrophils, is crucial as it signifies the presence of infection and its subsequent reduction can indicate successful treatment.
Step-by-step explanation:
The most important lab value to monitor to see a response to treatment of osteomyelitis is the white blood cell (WBC) count, especially the presence of elevated levels of neutrophils, which indicate an infection. A full blood count can reveal neutrophilia, which is often associated with bacterial infections such as osteomyelitis. Additionally, blood tests may include checking renal function and calcium levels to assess for complications or underlying conditions. The resolution of elevated inflammatory markers such as WBCs can be an indicator of response to treatment for osteomyelitis.