It is a diagnostic method that is performed using equipment called an ultrasound scanner, which works based on the physical principles of ultrasound (very high frequency sounds not perceived by the human ear). The equipment emits ultrasonic sound waves that, upon entering, collide and are reflected from the different vascular structures, allowing immediate observation of the animated image of the veins and arteries, to determine their size, shape, and function.
An extremity duplex ultrasound is an exam to determine the speed and direction of blood movement through the arteries and veins of the upper and lower limbs, to determine the presence of:
- Peripheral arterial disease (PAD): which can cause pain in the arm or leg.
- Aneurysm: Abnormal expansion or dilation of the wall of a blood vessel.
- atherosclerotic plaques.
- Dissection: a tear in the layers of the wall of a blood vessel.
- Deep vein thrombosis (DVT): formation of a blood clot in the deep veins of the legs.
- Varicose veins: swollen and twisted veins that are visible under the surface of the skin.
- Abnormal increase or decrease in blood flow in the extremities.
- Among others.
To perform this procedure, you will be asked to remove your clothing and any accessories on your extremities and put on a gown that will allow the Vascular Surgeon to perform the test more easily and accurately.
A conductive gel will be applied to the area to be studied, to position the transducer, which is the tool in charge of transmitting the information to the ultrasound machine. Depending on the area being evaluated, the doctor will ask you to adopt different postures.
This test is painless and can take about 30 minutes.
- Arrive 15 minutes before the assigned appointment time.
- You must have at least 2 hours.
- Submit an identification document (Civil Registry, Identity Card, Citizenship Card, Immigration Certificate or Passport), health entity card, medical order and/or authorization.
- Submit: medical history, current medication formula and previously performed tests.
- Bring the money corresponding to the value of the moderating fee or the value of the particular appointment, as appropriate.
- If the patient is a minor, over 60 years of age or has any special condition, they must attend with (1) a companion.
- It is not necessary to suspend any type of medication unless it has been indicated by your treating physician.
- You should not use creams, powders, oils, colognes, on your legs or arms, as this can interfere with the measurement.
- Do not smoke at least 4 hours before the exam.
It doesn’t have any side effects.