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WorksheetsEKG REVIEW CH 5
Total questions: 35
Worksheet time: 24mins
What mechanical action corresponds to depolarization in a normally functioning heart?
,contraction and relaxation
contraction and pumping
relaxation and pumping
relaxation and filling
What mechanical action corresponds to repolarization?
relaxation and pumping
contraction and pumping
relation and filling
none of these
Why are 12 leads used for the EKG?
to complicate things and make you learn more
provides different views of the hearts electrical activity
shows mechanical activity
provide fewer views of hearts activity
What is the purpose of the electrodes?
permits electrical conduction from the skin to the lead wire
permits electrical stimulation from skin to lead wire
permits electrical conduction from lead wire to skin
permits electrical stimulation from lead wire to skin
Proper way to store electrodes?
whatever feels right
per manufacture directions
per facility policy
throw away
What should be done with expired electrodes?
use them anyways
discard them
hide them
take home to wax your legs
What type of EKG would be ordered if doctor wants information about the heart over extended period of time?
holter monitor
ambulatory monitor
event monitor
all of above
What is recorded on fourth row of 12-lead EKG?
10 second lead of heart
2.5 second look at Lead II
12 second look at Lead II
12 second look at Lead III
What is fourth row of a 12-lead EKG recording used for?
assess rhythm and assess rate
assess rate
assess rhythm
none of these
Which leads make up Einthovens triangle?
Lead I
Lead II
Lead III
all of the above
Which electrodes are used for 3-Lead EKG?
right arm, left arm, left leg
V1, V2, V4
left arm and leg
V1-6
Which electrodes are used for 5-Lead EKG?
right arm and right leg
right arm left arm right leg left leg V1
V1-5
right arm left arm v1-3
Which electrodes are used for a 12- Lead EKG? (all lower case w comma in between)
(a)
Where would you place electrode for V1?
4th intercostal space just to right of sternum
between V2 and V4
midclaviculaar line
left of sternum
Where would you place electrode for V2?
right of sternum
4th intercostal space just to left of sternum
between V1 and V4
midclavicular line
Where would you place electrode for V3?
between V2 and V4
right of sternum
left of sternum
between V5 and 6
Where would you place electrode for V4?
5th intercostal space left midclavicular line
right of sternum
left of sternum
4th intercostal space
Where would you place electrode for V5?
left of sternum
horizontally even with V4 in left anterior axillary line
between V1 and V2
left leg
Where would you place electrode V6?
left of sternum
4th intercostal space
horizontally even with V4 and V5 in left midclavicular line
left leg
Why should EKG machines always be plugged in prior to use?
so they work properly
to prevent loss of power while performing EKG
so machine does not appear mobile to patient
to maintain electricity
What are the two paper speed options on EKG machine?
25mm/sec and 50 mm/sec
50 mm/sec and 75 mm/sec
5 mm/sec and 10 mm/sec
10 mm/sec and 20 mm/sec
What is the paper speed most commonly used when obtaining an EKG?
(a)
Which of the following is a case in which a physician may request paper speed to be increased to 50 mm/sec?
patient has increased heart rhythm
patient has slow heart rate
patient wont sit still
patient has tremors
How can EKG technicians change the height of the deflections on the EKG?
by increasing the gain
by decreasing the gain
by increasing the gain and decreasing the gain
none of these it cant be changed
aVR, aVL and aVF are called _ limb leads
(a)
electrode color for RA
(a)
electrode color for RL
(a)
electrode color for LA
(a)
electrode color for LL
(a)
electrode color for V1
(a)
electrode color for V2
(a)
electrode color for V3
(a)
electrode color for V4
(a)
electrode color for V5
(a)
electrode color for V6
(a)
