How To Take A Blood Pressure In The Leg

If possible, the patient should be in a prone position. The bladder of the cuff should be about 40% of the circumference of the thigh, and the length should be about 75% to 80% of this circumference. Normally, the systolic blood pressure in the legs is usually 10% to 20% higher than the brachial artery pressure.

Blood pressure can be measured from any artery that runs the near the surface of the skin. The basic way of measuring blood pressure is to apply pressure (using an air-filled cuff) to the artery and listening to the blood as it courses through the arteries. Blood pressure is typically measured on the arms using the brachial artery, but in some cases this may be uncomfortable for the patient. In these cases, the blood pressure can be measured on the calf by listening to the posterior tibial artery.

Take three readings about two minutes apart. Discard the first reading and average out the other two – add them together and divide by 2. Adjust the reading – if you wish to get an idea of what the blood pressure in your arm would be, take 10 off the top reading and add 5 to the bottom reading.

If possible, the patient should be in a prone position. The bladder of the cuff should be about 40% of the circumference of the thigh, and the length should be about 75% to 80% of this circumference. Normally, the systolic blood pressure in the legs is usually 10% to 20% higher than the brachial artery pressure.

If a person has a certain medical condition, a doctor may recommend that her blood pressure be measured in her legs. This is often the case in women who have undergone surgery to remove cancerous lymph nodes during a breast biopsy. Mastectomy patients will also be recommended to have their blood pressure taken this way. To measure a person’s blood pressure in their legs, certain adjustments will need to be made.

It is a standard practice to measure non-invasive blood pressure (NIBP) in the perioperative setting using oscillotonometric equipment.

In our study, blood pressure (BP) was measured in the arm and calf preoperatively with an aim to determine whether there was any correlation between the two. This was done so that the surgeries in which upper arm could not be used for measurement of BP intraoperatively, the calf could be used as an alternative site. For instance, in patients undergoing mastectomy, one arm is available for intravenous (i.v) cannulation and NIBP measurement, which leads to repeated occlusion of the i.v. line. In patients with polytrauma, amputated arm, burns and multiple i.v. lines, as in patients with shock, neither arm is available for BP monitoring.


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