What is the normal range for ABI?

An ABI ratio between 1.0 and 1.4 is normal. An ABI ratio between 0.9 and 1.0 is borderline. An ABI ratio of 0.9 or less means you have PAD.

What does an ABI value of 0.70 indicate?

The ABI is calculated as the higher pressure at the ankle divided by the higher of the left and right arm pressures. An ABI ratio above 0.90 is normal, 0.71-0.90 indicates mild obstruction, 0.41-0.70 indicates moderate obstruction, and <0.40 indicates severe obstruction.

What ABI is safe for compression?

Implementation of compression: For an ABI > 0.8 and < 1.3, standard compression (30-40 mmHg) is recommended. Experts agree that with a clinical assessment not indicative of severe arterial disease and an ABI > 0.8 and < 1.3, standard compression can be started if the patient can tolerate it.

What does a high ABI mean?

In humans, a high ankle brachial index (ABI) indicates stiff peripheral arteries, and is associated with cardiovascular disease (CVD) events.

What does an abnormal ABI indicate?

Abnormal. Abnormal values for the resting ankle-brachial index are 0.9 or lower and 1.40 or higher. If the ABI is 0.91 to 1.00, it is considered borderline abnormal. footnote 2. Abnormal values might mean you have a higher chance of having narrowed arteries in other parts of your body.

What does an ABI test show?

The ankle brachial index, or ABI, is a simple test that compares the blood pressure in the upper and lower limbs. Health care providers calculate ABI by dividing the blood pressure in an artery of the ankle by the blood pressure in an artery of the arm.

What does an ABI of .97 indicate?

Test Overview The ankle-brachial index (ABI) result is used to predict the severity of peripheral arterial disease (PAD). A slight drop in your ABI with exercise means that you probably have PAD. This drop may be important, because PAD can be linked to a higher risk of heart attack or stroke.

How is ABI calculated?

The ankle brachial index, or ABI, is a simple test that compares the blood pressure in the upper and lower limbs. Health care providers calculate ABI by dividing the blood pressure in an artery of the ankle by the blood pressure in an artery of the arm. The result is the ABI.

When should you not use compression therapy?

If any of the following contraindications are present, compression therapy should be not be carried out: • Uncompensated organ failure (i.e., heart, liver, or renal). Untreated deep vein thrombosis or phlebitis. Severe arterial disease (ABI 0.49 or less) unless ordered by a vascular surgeon or Physician.

When should compression bandaging not be used?

For some patients factors such as mild arterial disease, neuropathy or cardiac failure render strong compression unsafe or painful and mild or moderate compression may be required (eg using inelastic compression). Patients with more severe arterial disease should not receive compression (Marston and Vowden, 2003).

What organs are affected by peripheral artery disease?

PVD may affect any blood vessel outside of the heart including the arteries, veins, or lymphatic vessels. Organs supplied by these vessels, such as the brain, and legs, may not get enough blood flow for proper function. However, the legs and feet are most commonly affected.

What are the symptoms of blocked arteries in the legs?

Claudication is a symptom of a narrowing or blockage of an artery. Typical symptoms of claudication include: Pain, a burning feeling, or a tired feeling in the legs and buttocks when you walk. Shiny, hairless, blotchy foot skin that may get sores.

What should be the ABI for compression therapy?

† Over 50 years of age with a history of tobacco use or diabetes. † Determine adequate arterial blood fl ow in lower ex- tremities prior to compression therapy, or wound debridement: † If the ABI is less than 0.8, sustained, high compres- sion (i.e., 30-40 mmHg at the ankle) is not recom- mended.2

Are there any contraindications for performing an ABI?

† Assess wound healing potential. Contraindications for ABI15 † Excruciating pain in lower legs/feet. † Deep vein thrombosis, which could lead to dislodge- ment of the thrombosis, where referral would be in- dicated for a duplex ultrasound test. † Severe pain associated with lower extremity wound(s). Guideline for Performing ABI

When to use Abi in Lower Extremity Wounds?

In 2013, the Journal of Wound, Ostomy Continence Nurses reviewed an article on indications for ABI. Some of the indications addressed in this article included: • Assessment of patients with lower extremity wounds to rule out LEAD. • In patients with suspected LEAD, diagnosis of arterial disease. • Diagnosis of intermittent claudication.

What are the limitations of the Abi exam?

Limitations of ABI † The ABI is an indirect examination that infers the anatomical location of an occlusion or stenosis. The exact location of the stenosis or occlusion cannot be determined by ABI alone.8 DOI: 10.1097/WON.0b013e3182478dde WWON200340.indd S21ON200340.indd S21 110/03/12 6:04 PM0/03/12 6:04 PM