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'22 Leads Test

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1.
QRS complex:
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2.
which leads produces a negative deflection?
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3.
In a 12-lead, Color ____ is placed on ____
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4.
aVL is placed where and what type of deflection does it have?
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5.
12-lead EKG consist of:
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6.
what is the grounding lead used for?
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7.
difference between unipolar and V1-V6?
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8.
what does bipolar leads measure?
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9.
standard limb lead
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10.
standard & augmented leads and waveforms NOTE:
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11.
precordial leads
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12.
chest leads and waveforms NOTE:
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13.
how many leads in a 12 waveform paper?
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14.
where is the 4th or "grounding lead" placed?
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15.
augmented limb leads
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16.
which leads produces a positive deflection?
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17.
if an aVR has a positive deflection, what should be done?
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18.
T/F: A multichannel electrocardiograph, such as 3-channel or 6-channel, records multiple leads at once in about 10 seconds
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19.
which leads form the Einthoven's Triangle?
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20.
aVF is placed where and what type of deflection does it have?
A.
represents the complete ventricular depolarization last (0.08-0.12 secs or 2-3 small sq) anything +/- means "abnormal"
B.
T ; Unlike a single-channel ECG, the 3- and 6-channel ECG record multiple leads at once producing a 12-lead ECG in about 10 secs
C.
L. Arm ; positive deflection
D.
the placement of the lead
E.
aVR
F.
- chest leads/precordial leads V1-V6 provide a view of the heart from different angles
G.
- standard leads l, ll, lll produce POSITIVE deflections on the graph - augmented lead aVR produces a negative deflection - augmented lead aVL & aVF produces a POSITIVE deflection
H.
make sure that the leads are properly placed
I.
"unipolar lead"
J.
used to stabilize the ECG but takes NO part in lead formation
K.
L. Foot (L. leg to the foot) ; positive deflection
L.
10 leads
M.
4 limb leads (3 limb electrodes & 1 grounding electrode) 6 chest leads (V1-V6) = 10 leads that create 12 waveforms
N.
unipolar V1-V6 (where you pick up the signal of the heart)
O.
"bipolar lead" AKA bipolar bc they are composed of 2 electrodes; a neg. and pos. one; ECG records the difference in electrical potential btwn them
P.
on the R. leg
Q.
the standard limb leads "bipolar leads"
R.
lead l, ll, lll & aVL, aVF
S.
[V]3 GREEN; midway between V2-V4
T.
the electrical activity in 2 directions (<--->)
Type the Answer that corresponds to the displayed Question.
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21.
chest leads
Type the Question that corresponds to the displayed Answer.
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22.
(+) R. Arm <--> L. Leg (-)
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23.
represents the complete atrial contraction last (0.12-.20 secs or 3-5 small sq) anything +/- means "abnormal"
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24.
(+) R. Arm <---> L. Arm (-)
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25.
attaches to the electrodes on the body
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26.
(-) L. Arm <--> L. Leg (+)
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27.
from the heart to the ____: aVR - R. Arm aVL - L. Arm aVF - L. Foot
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28.
triangle formed from the R. A --> L. A --> L.L
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29.
same distance from the heart: R. Arm <--> L. Arm R. Arm <--> L. Leg L. Arm <--> L. Leg
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30.
are placed on the pts skins in specific locations that control electrical activity to the ECG - for single use - check for expiration date

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