<s>[INST] What are the risks when you do not carry out Ankle arm index before compression therapy? [/INST] The ankle-brachial index (ABI) is a test used to assess the blood flow in the legs and to identify peripheral artery disease (PAD). The test involves measuring the blood pressure in the ankle and comparing it to the blood pressure in the arm. The ABI is an important tool in the evaluation of patients who are suspected of having PAD or other conditions that affect blood flow in the legs.

Not carrying out the ABI before starting compression therapy can result in a number of risks, including:

Misdiagnosis: Without an ABI, it may be difficult to accurately diagnose PAD or other conditions affecting blood flow in the legs. This can result in patients receiving inappropriate treatment or being misdiagnosed with a different condition.
Ineffective treatment: If PAD is not properly diagnosed, the patient may receive compression therapy that is not appropriate for their condition. This can result in the therapy being ineffective and not providing the desired outcome.
Increased risk of complications: Compression therapy can cause skin irritation and ulceration, especially in patients with underlying circulation problems. Without an ABI, it may be difficult to identify patients at increased risk of these complications and to provide appropriate precautions or modifications to the therapy.
Delayed diagnosis and treatment: Not carrying out the ABI before starting compression therapy may result in a delay in the diagnosis and treatment of PAD or other conditions affecting blood flow in the legs. This can result in the condition becoming more serious and potentially leading to other complications.
In conclusion, the ankle-brachial index is an important tool in the evaluation and management of patients who are suspected of having PAD or other conditions affecting blood flow in the legs. Failure to carry out this test before starting compression therapy can result in a number of risks, including misdiagnosis, ineffective treatment, increased risk of complications, and delayed diagnosis and treatment.</s>