Ankle blood pressure (BP) measurement is necessary for the diagnosis of hypertension where measurements are not possible due to medical conditions or limb deformities.
Can blood pressure be measured in legs?
BP is usually measured on the upper arm using an inflatable cuff. However, sometimes this isn’t possible – this could be due to arm problems caused by stroke or missing limbs. BP can be measured in the leg instead.
Is blood pressure taken on leg accurate?
Normally, the systolic blood pressure in the legs is usually 10% to 20% higher than the brachial artery pressure. Blood pressure readings that are lower in the legs as compared with the upper arms are considered abnormal and should prompt a work-up for peripheral vascular disease.
What should blood pressure in legs be?
Leg blood pressure should be about the same as arm blood pressure. Comparing the two systolic pressures is called the ankle-brachial index. (“Brachial” is the Latin word for “arm.”) The normal index is 0.9 to 1.3.
Why is leg BP higher than arm?
It has been recognized for some time that systolic pressures at the level of the ankles can also be elevated in comparison to pressures measured in the arm. This is usually attributed to calcification of the arteries, which prevents arterial compression and results in a falsely elevated pressure measurement.
Where do you take BP on the leg?
If taking BP in the leg, place the patient prone if possible. Locate his popliteal artery and wrap a thigh-sized cuff with its bladder centered over the popliteal artery and its bottom edge 1 inch above the bend of the knee.
Why is ankle blood pressure higher?
Usually, arterial compliance becomes lower in the peripheral artery than in the proximal artery. This produces pulse pressure amplification, a phenomenon of SBP increase in distal arterial site. Therefore ankle SBP is generally higher than arm SBP, especially in middle-elderly subjects.
Is blood pressure higher in legs or arms when standing?
The data show a marked increase in leg blood pressure on assuming the standing position, with mean increases of 65 mm Hg in systolic and 62 mm Hg in diastolic blood pressure in the lower extremities, compared with the arm on standing.
What are symptoms of poor circulation in legs?
Symptoms of Poor Blood Circulation
- Swollen veins and arteries (varicose or “spider” veins)
- Heaviness in legs and feet.
- Skin discoloration.
- Swollen legs and feet.
- Split, weeping skin.
- Pelvic pain or discomfort.
- Restless legs and feet.
What is normal blood pressure in ankles?
The normal range for the ankle-brachial index is between 0.90 and 1.30. An index under 0.90 means that blood is having a hard time getting to the legs and feet: 0.41 to 0.90 indicates mild to moderate peripheral artery disease; 0.40 and lower indicates severe disease.
Can you take blood pressure around the ankle?
To find out your ankle-brachial index, a technician measures the blood pressure in your ankle and your arm. The ankle-brachial index can help your doctor check for peripheral artery disease (PAD). The ankle-brachial index test is a quick, noninvasive way to check for peripheral artery disease (PAD).