Doppler Attack Case Study
The patient should lay on a couch and be at rest and relaxed to facilitate a true reading.
2. The patient’s left arm should be supported and with relaxed fingers. The cuff of a sphygmomanometer should be placed on the upper left arm. Using a hand held Doppler, the probe should be placed below the lower edge of the cuff, over the bifurcation of the brachial artery.
3. The cuff should be inflated beyond the expected systolic pressure in order that the pulse disappears as the artery is closed by the pressure and the blood flow stops. Listening carefully to the Doppler, the cuff should be deflated slowly. The systolic pressure occurs as the heart is at the height of its contraction, producing the highest pressure of the cycle, which is recorded …show more content…
5. As before, inflate the cuff beyond the expected systolic pressure and then deflate slowly, listening carefully with the Doppler probe. This ankle systolic pressure reading is recorded as the first sound is heard.
6. The ABPI is calculated to be read as a ratio with the ankle reading divided by the brachial reading.
7. The systolic pressure index indicates the clinical status of the limb.
a. ABPI value of 1.3 or higher may indicate calcification of arteries;
b. ABPI between 0.9 and 1.2 would be considered normal with low risk of ulceration
c. ABPI between 0.6 and 0.9 indicate vascular disease with delayed wound healing and risk of ulceration. d. ABPI less than 0.6 indicates severe ulceration risk and low healing ability.
e. ABPI of 0.2 or below indicates critical limb ischaemia
8. ABPI readings can vary widely and generate false-positive values if there is any arterial calcification and so should be used in combination with other clinical findings (eg Buerger’s limb elevation test).
9. Patients with diabetes and sclerotic hardening of arteries should have a toe systolic
2. The patient’s left arm should be supported and with relaxed fingers. The cuff of a sphygmomanometer should be placed on the upper left arm. Using a hand held Doppler, the probe should be placed below the lower edge of the cuff, over the bifurcation of the brachial artery.
3. The cuff should be inflated beyond the expected systolic pressure in order that the pulse disappears as the artery is closed by the pressure and the blood flow stops. Listening carefully to the Doppler, the cuff should be deflated slowly. The systolic pressure occurs as the heart is at the height of its contraction, producing the highest pressure of the cycle, which is recorded …show more content…
5. As before, inflate the cuff beyond the expected systolic pressure and then deflate slowly, listening carefully with the Doppler probe. This ankle systolic pressure reading is recorded as the first sound is heard.
6. The ABPI is calculated to be read as a ratio with the ankle reading divided by the brachial reading.
7. The systolic pressure index indicates the clinical status of the limb.
a. ABPI value of 1.3 or higher may indicate calcification of arteries;
b. ABPI between 0.9 and 1.2 would be considered normal with low risk of ulceration
c. ABPI between 0.6 and 0.9 indicate vascular disease with delayed wound healing and risk of ulceration. d. ABPI less than 0.6 indicates severe ulceration risk and low healing ability.
e. ABPI of 0.2 or below indicates critical limb ischaemia
8. ABPI readings can vary widely and generate false-positive values if there is any arterial calcification and so should be used in combination with other clinical findings (eg Buerger’s limb elevation test).
9. Patients with diabetes and sclerotic hardening of arteries should have a toe systolic