A Patient Has Chronic Osteomyelitis of the Left Femur, Which

A patient has chronic osteomyelitis of the left femur, which is being managed at home with self-administration of IV antibiotics. On a home visit, the nurse identifies the nursing diagnosis of ineffective therapeutic regimen management when the nurse finds that the patient

A) is unable to plantar-flex the foot on the affected side.
B) uses crutches to avoid weight bearing on the affected leg.
C) takes and records the oral temperature twice a day.
D) is irritable and frustrated with the length of treatment required.