Technique Flashcards
place cuff _______ on extremity site, not encircling any bone
straight
should it be snug
yes
ideally the cuff bladder should be placed
over the artery
the bladder inflation should transmit pressure quickly into the tissue to
compress the artery
width of cuff should be about _____% greater than diameter of limb
20
four cuff method
brachial high thigh above the knee below the knee ankle
four cuff method size
12 x 40 cm with longer cuff bladders for thighs
three cuff method
brachial
one thigh cuff
below the knee
ankle
three cuff method size
12 x 40 cm, with exception of thigh cuff
difference between 4 cuff and 3
4 cuff
provide prox and distal pressure measurement but artifactually elevated BP are obtained at the HT ( > 30 mmHg than highest brachial)
difference between 4 cuff and 3
3 cuff
utilized one large thigh cuff (high on the thigh), providing a more accurate pressure reading
probe?
8 to 10 mhz
angle CW doppler
45-60
due to vessel angulation, probe angle behind the knee may be closer to ___ degree to skin
90
angle probe so blood flow moves
antegrade
using a hand held _______, segmental doppler pressures are obtained in
sphygomomanometer or an automatic cuff inflator
Order of segmental pressures
brachial- use brachial a
ankle - use pta and dpa; peroneal if necessary
calf -PTA or DPA: that had the hight pressure
above the knee- same as calf may need to use popliteal a
high thigh- same as above knee
if one large thigh cuff used, protocol same as for calf
when doing segmental pressures, Start at the ankle and move prox to eliminate
the possible underestimation of the systolic pressure measurement
use the site from higher of two pedal doppler pressure to obtain the remainder of the segmental pressure in
leg beginning with the calf level
complete cessation of blood flow is
required
cuff inflated 20-30 mmHg beyond
last audible doppler arterial signal
inflate the cuff 20-30 mmHg higher than
highest brachial pressure
if pressure measurements must be repeated, the cuff should be fully deflated for about ____ prior to repeat inflatoin
minute
the systolic pressure is recorded as that pressure at which the
first audible doppler arterial signal returns
