Man with possible blood clot in leg after lung transplant

We need you to respond to (number withheld) Pine Street for a 56-year-old male, possible blood clot in his lower left leg.

Patient had a double lung transplant four days ago.

Caller said the patient's leg is yellow from his mid-shin down and there is a baseball-sized lump in his calf.

He is conscious, breathing, and responsive.