Final answer:
DVT can be distinguished from cellulitis by performing a doppler ultrasound to detect blood clots, assessing the patient's white blood cell count, and considering the size and location of the affected area.
Step-by-step explanation:
Distinguishing deep vein thrombosis (DVT) from cellulitis can be done by considering several factors. One way is by performing a doppler ultrasound to detect blood clots in DVT. This imaging test can show if there are any blood clots present in the deep veins of the legs. Presence of fever is a characteristic of cellulitis, which is an infection of the skin and underlying tissues. By assessing the patient's white blood cell count, a healthcare professional can determine if there is an elevated level, which may indicate an infection like cellulitis. Lastly, the size and location of the affected area can also help in distinguishing DVT from cellulitis. DVT usually affects one leg and causes swelling, pain, and warmth, whereas cellulitis can occur in any part of the body.