EKG from Wilkins
1. The ECG does not reflect the pumping ability of the heart or the likelihood
that the patient may have a myocardial infarction in the near future.: resting
2. The normally has the greatest degree of automaticity and therefore
normally controls the pace of the heart at a normal rate of 60 to 100 beats/minute. The AV junction
acts as the backup pacemaker, with an inherent rate of 40 to 60 beats/minute.: SA node
3. of one of the coronary arteries leads to ischemia and infarction of a
portion of the myocardium. This leads to dysrhythmias and reduced cardiac output in most cases.:
blockage
4. The is important in evaluating the ECG because it reflects the
electrical activity of the ventricles.: QRS complex
5. In patients suspected of having acute myocardial ischemia, the
is important to evaluate. Significant elevation or depres- sion of the ST
segment must be recognized and responded to immediately.: ST segment
6. The normal ECG has six limb leads that examine the heart in the vertical plane and six chest
leads that examine the heart in the
plane.: horizontal
7. The normal mean axis is somewhere between and degrees.
Right-axis deviation indicates that the right ventricle is enlarged; left-axis deviation suggests that the
left ventricle is enlarged.: -35
+90
8. A systematic step-by-step evaluation of the is needed to find all
abnormalities.: ECG
9. In an apparent case of asystole, the patient's pulse and responsiveness should be quickly checked
to confirm whether the patient is indeed pulseless or whether a lead has become disconnected or the
equipment has otherwise malfunctioned. Also, asystole should be confirmed in more than one lead
during resuscitation efforts to ensure it is not fine :-
ventricular fibrillation
10.T-wave inversion and ST-segment depression indicate
. ST-segment elevation indicates that an acute myocar- dial injury has
occurred and indicates the presence of an ST-elevation my- ocardial infarction, or STEMI:
myocardial ischemia
11.For a patient with severe cardiac symptoms, the role of the RT is to quickly
, optimize oxygen delivery, obtain an ECG, and assist in resuscitation if
the patient worsens.: notify the physician
, EKG from Wilkins
12.Patients with chronic hypoxemic lung disease often have evidence of
deviation on the ECG. This is seen as a negative QRS in lead I.: right-axis
13.An is an indirect measurement of the electrical activity of the heart.: ECG
14.The normal electrical conducting pathway of the heart starts with the
, then travels through the AV junction, bundle of His, bundle branches, and
Purkinje fibers and finally through the heart muscle known as the myocardium.: SA node
15.The RT should recommend that an ECG be obtained whenever the patient has signs and
symptoms (e.g., chest pain) of an acute cardiac disorder such as a : myocardial infarction
16.Disturbances in the cardiac conduction system are called
, which can be detected with an ECG.: dysrhythmias
17.The RT should remember that dysrhythmias can occur for many reasons, including: hypoxemia
myocardial ischemia sympathetic
nerve stimulation certain drugs
18.On an ECG, the initial wave of electrical activity or P wave signals atrial depolarization, the QRS
complex represents ventricular depolarization, and the T wave occurs with ventricular :
repolarization
19.On ECG paper, time is measured on the , and
voltage or amplitude is measured on the vertical axis.: horizontal axis
20.On ECG paper, each small square represents second, and each large
square is 0.2 second. Therefore, if the interval between R waves (RR interval) is five large boxes (1
second) and the rhythm is regular, then the rate is 60 beats/minute.: .04
21.An ECG involves the placement of leads on the extremities and another
chest leads across the chest to measure cardiac electrical activity from several different angles.:
six
22.There are several steps involved in ECG interpretation, including identi- fying the ,
evaluating the and presence of P waves, and measuring both the PR interval and
the QRS complex.: heart rate rhythm
23.common dysrhythmia characterized by a heart rate of 100 to 150 beats/minute, a regular
rhythm, and normal P waves, PR interval, and QRS complex. It may be caused by hypoxemia and
selected respiratory medica- tions such as certain ²-agonist bronchodilators.: Sinus tachycardia
, EKG from Wilkins
24.characterized by a regular rhythm and heart rate less than 60 beats/minute as well as normal P
waves, PR interval, and QRS complex. This dysrhythmia can be caused by vagal stimulation
associated with suctioning or tracheosto- my tube manipulation.: Sinus bradycardia
25.PVCs can occur in a normal heart as a result of causes such as
or they can signal a diseased heart. PVCs can occur several times per minute, two or more in a
row, as different shapes tend to be considered more serious.: hypoxemia,
26.Dysrhythmias, such as characterized by chaotic
electrical activity or asystole (cardiac standstill), should be consid- ered by the RT as medical
emergencies that require immediate and aggressive intervention according to resuscitation protocols.:
ventricular fibrillation
27.In an apparent case of asystole, the RT should quickly assess for a
and patient responsiveness early in any rescue effort because what may initially appear to be
asystole on an ECG monitor may simply be a disconnection of the ECG leads.: pulse
28.The AHA guidelines indicate that during resuscitation efforts,
should be confirmed in more than one ECG lead to rule out fine ventricular fibrillation.: asystole
29.Rapid identification and treatment of ST-elevation myocardial infarction (STEMI) is critical in
achieving favorable clinical outcomes. As a result, the AHA has issued specific guidelines for
identifying patients with suspected STEMI. In addition to ECG changes, these include: chest
discomfort shortness of breath, weakness
diaphoresis nausea
lightheadedness
30.The role of the RT for a patient experiencing severe chest pain is to: notify the physician,
evaluate and optimize oxygen delivery, help ensure that a 12-lead ECG is quickly obtained, and
be ready to participate as part of the cardiac resusci- tation team
31.ECGs are useful to evaluate all of the following, except:
a. Impact of lung disease on the heart
b. Pumping ability of the heart
c. Severity of the myocardial infarction
d. Heart rhythm: Pumping ability of the heart
32.What clinical findings are most suggestive of the need for an ECG?
a. Headache and flulike symptoms
b. Orthopnea and chest pain
1. The ECG does not reflect the pumping ability of the heart or the likelihood
that the patient may have a myocardial infarction in the near future.: resting
2. The normally has the greatest degree of automaticity and therefore
normally controls the pace of the heart at a normal rate of 60 to 100 beats/minute. The AV junction
acts as the backup pacemaker, with an inherent rate of 40 to 60 beats/minute.: SA node
3. of one of the coronary arteries leads to ischemia and infarction of a
portion of the myocardium. This leads to dysrhythmias and reduced cardiac output in most cases.:
blockage
4. The is important in evaluating the ECG because it reflects the
electrical activity of the ventricles.: QRS complex
5. In patients suspected of having acute myocardial ischemia, the
is important to evaluate. Significant elevation or depres- sion of the ST
segment must be recognized and responded to immediately.: ST segment
6. The normal ECG has six limb leads that examine the heart in the vertical plane and six chest
leads that examine the heart in the
plane.: horizontal
7. The normal mean axis is somewhere between and degrees.
Right-axis deviation indicates that the right ventricle is enlarged; left-axis deviation suggests that the
left ventricle is enlarged.: -35
+90
8. A systematic step-by-step evaluation of the is needed to find all
abnormalities.: ECG
9. In an apparent case of asystole, the patient's pulse and responsiveness should be quickly checked
to confirm whether the patient is indeed pulseless or whether a lead has become disconnected or the
equipment has otherwise malfunctioned. Also, asystole should be confirmed in more than one lead
during resuscitation efforts to ensure it is not fine :-
ventricular fibrillation
10.T-wave inversion and ST-segment depression indicate
. ST-segment elevation indicates that an acute myocar- dial injury has
occurred and indicates the presence of an ST-elevation my- ocardial infarction, or STEMI:
myocardial ischemia
11.For a patient with severe cardiac symptoms, the role of the RT is to quickly
, optimize oxygen delivery, obtain an ECG, and assist in resuscitation if
the patient worsens.: notify the physician
, EKG from Wilkins
12.Patients with chronic hypoxemic lung disease often have evidence of
deviation on the ECG. This is seen as a negative QRS in lead I.: right-axis
13.An is an indirect measurement of the electrical activity of the heart.: ECG
14.The normal electrical conducting pathway of the heart starts with the
, then travels through the AV junction, bundle of His, bundle branches, and
Purkinje fibers and finally through the heart muscle known as the myocardium.: SA node
15.The RT should recommend that an ECG be obtained whenever the patient has signs and
symptoms (e.g., chest pain) of an acute cardiac disorder such as a : myocardial infarction
16.Disturbances in the cardiac conduction system are called
, which can be detected with an ECG.: dysrhythmias
17.The RT should remember that dysrhythmias can occur for many reasons, including: hypoxemia
myocardial ischemia sympathetic
nerve stimulation certain drugs
18.On an ECG, the initial wave of electrical activity or P wave signals atrial depolarization, the QRS
complex represents ventricular depolarization, and the T wave occurs with ventricular :
repolarization
19.On ECG paper, time is measured on the , and
voltage or amplitude is measured on the vertical axis.: horizontal axis
20.On ECG paper, each small square represents second, and each large
square is 0.2 second. Therefore, if the interval between R waves (RR interval) is five large boxes (1
second) and the rhythm is regular, then the rate is 60 beats/minute.: .04
21.An ECG involves the placement of leads on the extremities and another
chest leads across the chest to measure cardiac electrical activity from several different angles.:
six
22.There are several steps involved in ECG interpretation, including identi- fying the ,
evaluating the and presence of P waves, and measuring both the PR interval and
the QRS complex.: heart rate rhythm
23.common dysrhythmia characterized by a heart rate of 100 to 150 beats/minute, a regular
rhythm, and normal P waves, PR interval, and QRS complex. It may be caused by hypoxemia and
selected respiratory medica- tions such as certain ²-agonist bronchodilators.: Sinus tachycardia
, EKG from Wilkins
24.characterized by a regular rhythm and heart rate less than 60 beats/minute as well as normal P
waves, PR interval, and QRS complex. This dysrhythmia can be caused by vagal stimulation
associated with suctioning or tracheosto- my tube manipulation.: Sinus bradycardia
25.PVCs can occur in a normal heart as a result of causes such as
or they can signal a diseased heart. PVCs can occur several times per minute, two or more in a
row, as different shapes tend to be considered more serious.: hypoxemia,
26.Dysrhythmias, such as characterized by chaotic
electrical activity or asystole (cardiac standstill), should be consid- ered by the RT as medical
emergencies that require immediate and aggressive intervention according to resuscitation protocols.:
ventricular fibrillation
27.In an apparent case of asystole, the RT should quickly assess for a
and patient responsiveness early in any rescue effort because what may initially appear to be
asystole on an ECG monitor may simply be a disconnection of the ECG leads.: pulse
28.The AHA guidelines indicate that during resuscitation efforts,
should be confirmed in more than one ECG lead to rule out fine ventricular fibrillation.: asystole
29.Rapid identification and treatment of ST-elevation myocardial infarction (STEMI) is critical in
achieving favorable clinical outcomes. As a result, the AHA has issued specific guidelines for
identifying patients with suspected STEMI. In addition to ECG changes, these include: chest
discomfort shortness of breath, weakness
diaphoresis nausea
lightheadedness
30.The role of the RT for a patient experiencing severe chest pain is to: notify the physician,
evaluate and optimize oxygen delivery, help ensure that a 12-lead ECG is quickly obtained, and
be ready to participate as part of the cardiac resusci- tation team
31.ECGs are useful to evaluate all of the following, except:
a. Impact of lung disease on the heart
b. Pumping ability of the heart
c. Severity of the myocardial infarction
d. Heart rhythm: Pumping ability of the heart
32.What clinical findings are most suggestive of the need for an ECG?
a. Headache and flulike symptoms
b. Orthopnea and chest pain
