Left and right foot and calf swollen. The left calf hurt real bad between 5 to 7 on a scale of 1 to 10,a especially when l walk . Check the blood pressure below the knee and calf, the high was 174 psi. Check the blood pressure at my left arm. 147 over 70 At a hospital in grassvally, CA , on this past Thursday, ultrasound was performed on the left leg. Today, Monday after flying back home Sunday to, Nashville , TN. What is the possibility of a blood clod in the leg. I have been taking One Furosemide 20 mg tablets for five days and two potassium CL 20 MEQ ER TABLETS.