The Physician Has Ordered Both Heat and Cold Treatments for the Older

The physician has ordered both heat and cold treatments for the older adult patient with a leg injury.The nursing care plan reflects secondary diagnoses of peripheral vascular disease (PVD) ,diabetes,and an allergy to latex.Which of the ordered treatments would the nurse prefer to administer and why?

A) The nurse will use cold treatment because patients with diabetes and a latex allergy cannot tolerate heat.
B) The nurse will use cold treatment for this patient with a fracture because cold will help set the cast.
C) The nurse will use heat treatment because cold is contraindicated for patients with PVD.
D) The nurse will use heat treatment because heat will increase circulation and increase the threat of infection in the injured part.