AND ANSWERS GRADED A+
✔✔When checking the patient's orders prior to performing the ECG, the technician sees
that the patient's temperature is to be taken axillary. Which of the following routes would
be considered correct for axillary?
Ear
Mouth
Armpit
Anally - ✔✔The ear would be considered tympanic.
The mouth would be considered orally.
The anus would be considered rectally.
The armpit would be considered axillary.
✔✔Unresolved atrial fibrillation or atrial flutter is typically treated with which of the
following?
Lipitor
Coreg
Procardia
Coumadin - ✔✔If atrial fibrillation or atrial flutter is unresolved, it has the potential to
developing blood clots. These patient's are typically placed on an anticoagulant
medication such as Coumadin.
✔✔The nurse is caring for a patient that has had a myocardial infarction and is
experiencing chest pain. Which of the following would be considered the typical
medication used for the relief of chest pain?
Coreg
Tylenol
Lidocaine
Morphine - ✔✔Coreg, tylenol, and lidocaine is not used for myocardial infarction chest
pain. The drug of choice for most chest pain is considered morphine. It is administered
by IV per the dosage ordered by the physician. The typical dose would be considered 2-
5 mg and may repeat every 5 minutes up to 10 mg.
✔✔When the ECG technician is applying the electrodes for a stress test, they place the
V1-V6 leads and then which of the following?
RA/LA
aVL/aVF
RL/LL
Both A and C - ✔✔With the stress test, there are 10 leads.
These leads include:
,V1-V6
RA/LA
RL/LL
✔✔The mean instantaneous vector would be considered which of the following?
Bipolar lead
Unipolar lead
Electrical axis
Focal point - ✔✔The mean instantaneous vector would be considered the electrical
axis. The electrical axis of the heart would be considered the direction of the
electromotive force that is developed in the heart during activation.
✔✔Which of the following leads would help to record the electrical activity in the heart's
horizontal plane?
Bipolar lead
12-lead ECG
Precordial leads
Unipolar leads - ✔✔The precordial leads help to record the electrical activity of the
heart's horizontal plane of the heart. This provides a transverse view through the middle
of the heart which divides it into upper and lower portions.
✔✔Of the electrocardiogram waves, which would be considered the first deflection after
the diastole that is produced because of the atrial depolarization?
T wave
S wave
Q wave
P wave - ✔✔Of the P, Q, R, S, and T waves, the wave that would be considered the
deflection after the diastole would be the P wave. This occurs because of the atrial
depolarization of the heart.
✔✔The Bundle of His has an intrinsic firing rate of which of the following?
40 to 60 beats per minute
30 to 60 beats per minute
60 to 80 beats per minute
80 to 100 beats per minute - ✔✔The Bundle of His is located at the superior portion of
the interventricular septum. The Bundle of His is
actually the pathway of the electrical impulses that lead out of the SA node. They have
the ability to initiate
their own electrical impulses at a rate of 40 to 60 beats per minute.
, ✔✔If a patient is experiencing a low blood pressure, which of the following terms would
be correct?
Hypertension
Hypoxemia
Hypotension
Hypoplastic - ✔✔Hypertension would be high blood pressure.
Hypoxemia would be a low oxygen concentration in the blood.
Hypoplastic would be when an organ is abnormally small because of a problem with
development prior to birth.
Hypotension is low blood pressure.
✔✔The aVR lead picks up electrical activity from which of the following?
The center of the heart to the right arm.
The center of the heart to the left leg.
The center of the heart to the left arm.
From the left arm to the left leg. - ✔✔The center of the heart to the left leg would be the
aVF.
The center of the heart to the left arm would be the aVL.
The center of the heart to the right arm would be the aVR.
From the left arm to the left leg would be lead III.
✔✔The Q wave should have a duration of less than how many seconds?
0.30 seconds
0.20 seconds
0.10 seconds
0.04 seconds - ✔✔The Q wave should have a duration of less than 0.04 seconds.
It is the first negative component of the QRS complex and if it lengthens, it could be
indicative of a myocardial infarction.
✔✔When the mitral valve opens, the blood flows from the left atrium to which of the
following?
The right atrium
The left ventricle
The right ventricle
The lungs - ✔✔The right atrium, the right ventricle or the lungs is not correct. When this
valve opens the blood flows
into the left ventricle.
✔✔Which of the following age groups would be most likely to experience fibrosis in the
conduction system?