unit 4 Quiz 1 Flashcards
V1 location
4th ICS, Rt sternal
V2 location
4th ICS, Lt sternal
V3 location
5th ICS, between V2 and V4
V4 location
5th ICS, Lt MCL
V5 location
5th ICS, Lt AAL
V6 location
5th ICS, Lt MAL
lead 1 positive and negative electrode location
left arm, right arm
lead 2 positive and negative electrode location
left leg, right arm
lead 3 positive and negative electrode locations
left leg, left arm
aVR, aVL, and aVF
right arm, left arm, left leg
what is the central terminal
the negative pole in augmented and precordial leads
what is the perspective that is looked at in all leads
the positive electrode
which lead wire is the ground wire
green wire (rt leg/rt torso)
what is the usual lead for a rhythm strip
lead 2
which leads look at the anterior wall of the heart
v1, v2, v4, v4
which leads look at the lateral wall of tue heart
lead 1, aVL, v5, v6
which leads look at the interior wall of the heart
2, 3 aVF
right main brings blood where
inferior wall
circumflex brings blood where
left lateral wall
anterior descending brings blood where
anterior wall
which groups are referred to as limb leads
1, 2, 3, aVF, aVR, aVL
which groups are referred to as precordial leads
v1-6
which leads are bipolar
1, 2, 3
what is the standard speed of EKG tracing
25mm/sec
what is the standard sensitivity (gain) of EKG
10mm/mV
holter and telemetry require how many wires
5
holter and event monitoring are done over what period of time
long term monitoring
continuous monitoring needs how many wires
3
stress testing is used to see
how the heart responds to tachycardia
what causes the electrical current of the heart
chemical changes
what is telemetry used for
moving patients that are being monitored in the hospital
what is a holter monitor used for
a longer look at cardiac activity outside of the office
what is continuous monitoring used for
ER, ICU, or beside monitoring
what happens to EKG tracing if you speed the paper up
spaces out tracing
what happens if you increase the gain
makes waves taller so you can identify them easier
when do you speed up the tracing paper
when patients have fast rhythms
