ATI RN COMPREHENSIVE EXIT exam Questions and
Correct Answers (100% COMPLETE ANSWERS)
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The resting membrane potential is determined primarily by the difference between the intracellular
potassium ion level and the - ANSWER-Extracellular potassium ion level
Depolarization takes place when: - ANSWER-Sodium ions rush into the cell
The sodium-potassium pump functions to move: - ANSWER-Potassium ions into the cell and sodium ions
out of the cell
Phase I of the action potential represents the period of: - ANSWER-Early rapid repolarization
During the period between action potentials: - ANSWER-There is excessive sodium in the cell
The AV junction is formed by the AV node and the: - ANSWER-Bundle of His
The dominant pacemaker of the heart under normal conditions is the: - ANSWER-SA node
You are treating a patient who has a damaged SA node that is no longer pacing the heart. You would
expect the patient's heart to: - ANSWER-Beat more slowly
Which of the following cardiac pacemakers has an intrinsic rate of 40 to 60 beats per minute? -
ANSWER-AV junction
Acetylcholine affects the heart by: - ANSWER-Decreasing heart rate
The activation of myocardial tissue more than one time by the same impulse is called: - ANSWER-
Reentry
,You are treating a 75-year-old woman who has a history of diabetes and atherosclerosis. Her chief
complaint is persistent heartburn. You suspect: - ANSWER-This may be a cardiovascular problem
Jugular vein distention in cardiac patients should be evaluated with the patient positioned: - ANSWER-
With the head elevated 45 degrees
While assessing a patient you identify a carotid bruit. This leads you to believe that the patient: -
ANSWER-Has atherosclerosis
An ECG can help to determine: - ANSWER-Whether there is ischemic cardiac muscle
Which of the following is a bipolar lead? - ANSWER-Lead II
In lead II ECG placement, the positive lead is located on the: - ANSWER-Left leg
Leads II and III are: - ANSWER-Inferior leads
Lead I looks at the heart from what view? - ANSWER-Lateral
A lead used for routinely monitoring dysrhythmias is: - ANSWER-Lead II
A paramedic places 10 leads: 4 on the limbs and 6 on the chest. The paramedic is preparing for viewing
a: - ANSWER-12-lead ECG
In a 12-lead ECG, leads V1 and V2 are: - ANSWER-Septal leads
When preparing for a 12-lead ECG, locate the 4th intercostal space, just to the right of the sternum and
place lead: - ANSWER-V1
Standard ECG paper is divided into 1-mm blocks and moves past the stylus of the ECG at 25 mm per
second. Each small block represents: - ANSWER-0.04 second
,Each small square of graph paper represents _____ mV. - ANSWER-0.1
The first upward deflection on an ECG tracing is the: - ANSWER-P wave
The PR interval represents the time it takes an electrical impulse to: - ANSWER-Be conducted through
the atria and the AV node
The duration of the QRS complex should be _____ second. - ANSWER-0.08 to 0.10
While analyzing an ECG you cannot identify a Q wave. This means: - ANSWER-The Q wave may not be
visible in the lead you are viewing
The ST segment reflects the: - ANSWER-Early repolarization of the ventricles
Deep and symmetrically inverted T waves may be indicative of: - ANSWER-Cardiac ischemia
The part of the ECG tracing that is most important for detecting life-threatening arrhythmias is the: -
ANSWER-QRS complex
The triplicate method of determining heart rate is: - ANSWER-Accurate when the heart rate is normal
and greater than 50 beats per minute
When analyzing an ECG tracing, you notice that the rhythm is highly irregular. The best method to
calculate the rate is the - ANSWER-Six-second count method
While evaluating a 22-year-old female runner who called 911 because she fell and twisted her ankle, you
apply an ECG monitor. Her heart rate is 46, P waves are normal and upright, the PR interval is 0.16
second, and the QRS complex looks normal. There is a QRS complex following each P wave. The patient's
ECG tracing reflects: - ANSWER-Sinus bradycardia
, While evaluating a 22-year-old female runner who called 911 because she fell and twisted her ankle, you
apply an ECG monitor. Her heart rate is 46, P waves are normal and upright, the PR interval is 0.16
second, and the QRS complex looks normal. There is a QRS complex following each P wave. Treatment
for this patient's heart rate should include: - ANSWER-No treatment at this time
An undesirable side effect of atropine is: - ANSWER-Increased myocardial oxygen demand
Isoproterenol raises the heart rate by functioning as a: - ANSWER-Beta agonist
ECG analysis reveals that each P wave in the tracing has a different shape. The heart rate is 80 beats per
minute. This is called: - ANSWER-Wandering pacemaker
Which of the following may cause sinus bradycardia? - ANSWER-Intrinsic sinus node disease
Atropine works by inhibiting: - ANSWER-Parasympathetic response
An ECG strip shows a regular rhythm with a QRS complex of 0.08, a rate of 145, a PR interval of 0.12, and
one upright P wave before each QRS complex. You suspect that this rhythm is: - ANSWER-Sinus
tachycardia
You are called to evaluate a 64-year-old woman who complains of palpitations, weakness, and dizziness.
Her heart rate is 160 beats per minute, her blood pressure is 118/ 80 and her respiratory rate is 28. The
ECG tracing shows narrow QRS complexes and no identifiable P waves. This rhythm is most likely: -
ANSWER-SVT
You are called to evaluate a 64-year-old woman who complains of palpitations, weakness, and dizziness.
Her heart rate is 160 beats per minute, her blood pressure is 118/ 80 and her respiratory rate is 28. The
ECG tracing shows narrow QRS complexes and no identifiable P waves. The first recommended
treatment for this patient is: - ANSWER-Valsalva maneuver
Which of the followinYou are called to evaluate a 64-year-old woman who complains of palpitations,
weakness, and dizziness. Her heart rate is 160 beats per minute, her blood pressure is 118/ 80 and her
respiratory rate is 28. The ECG tracing shows narrow QRS complexes and no identifiable P waves. Which
of the following drugs is a class I (recommended) drug for this patient? - ANSWER-Adenosine
Correct Answers (100% COMPLETE ANSWERS)
ALREADY GRADED A+ | 100% satisfaction guarantee
The resting membrane potential is determined primarily by the difference between the intracellular
potassium ion level and the - ANSWER-Extracellular potassium ion level
Depolarization takes place when: - ANSWER-Sodium ions rush into the cell
The sodium-potassium pump functions to move: - ANSWER-Potassium ions into the cell and sodium ions
out of the cell
Phase I of the action potential represents the period of: - ANSWER-Early rapid repolarization
During the period between action potentials: - ANSWER-There is excessive sodium in the cell
The AV junction is formed by the AV node and the: - ANSWER-Bundle of His
The dominant pacemaker of the heart under normal conditions is the: - ANSWER-SA node
You are treating a patient who has a damaged SA node that is no longer pacing the heart. You would
expect the patient's heart to: - ANSWER-Beat more slowly
Which of the following cardiac pacemakers has an intrinsic rate of 40 to 60 beats per minute? -
ANSWER-AV junction
Acetylcholine affects the heart by: - ANSWER-Decreasing heart rate
The activation of myocardial tissue more than one time by the same impulse is called: - ANSWER-
Reentry
,You are treating a 75-year-old woman who has a history of diabetes and atherosclerosis. Her chief
complaint is persistent heartburn. You suspect: - ANSWER-This may be a cardiovascular problem
Jugular vein distention in cardiac patients should be evaluated with the patient positioned: - ANSWER-
With the head elevated 45 degrees
While assessing a patient you identify a carotid bruit. This leads you to believe that the patient: -
ANSWER-Has atherosclerosis
An ECG can help to determine: - ANSWER-Whether there is ischemic cardiac muscle
Which of the following is a bipolar lead? - ANSWER-Lead II
In lead II ECG placement, the positive lead is located on the: - ANSWER-Left leg
Leads II and III are: - ANSWER-Inferior leads
Lead I looks at the heart from what view? - ANSWER-Lateral
A lead used for routinely monitoring dysrhythmias is: - ANSWER-Lead II
A paramedic places 10 leads: 4 on the limbs and 6 on the chest. The paramedic is preparing for viewing
a: - ANSWER-12-lead ECG
In a 12-lead ECG, leads V1 and V2 are: - ANSWER-Septal leads
When preparing for a 12-lead ECG, locate the 4th intercostal space, just to the right of the sternum and
place lead: - ANSWER-V1
Standard ECG paper is divided into 1-mm blocks and moves past the stylus of the ECG at 25 mm per
second. Each small block represents: - ANSWER-0.04 second
,Each small square of graph paper represents _____ mV. - ANSWER-0.1
The first upward deflection on an ECG tracing is the: - ANSWER-P wave
The PR interval represents the time it takes an electrical impulse to: - ANSWER-Be conducted through
the atria and the AV node
The duration of the QRS complex should be _____ second. - ANSWER-0.08 to 0.10
While analyzing an ECG you cannot identify a Q wave. This means: - ANSWER-The Q wave may not be
visible in the lead you are viewing
The ST segment reflects the: - ANSWER-Early repolarization of the ventricles
Deep and symmetrically inverted T waves may be indicative of: - ANSWER-Cardiac ischemia
The part of the ECG tracing that is most important for detecting life-threatening arrhythmias is the: -
ANSWER-QRS complex
The triplicate method of determining heart rate is: - ANSWER-Accurate when the heart rate is normal
and greater than 50 beats per minute
When analyzing an ECG tracing, you notice that the rhythm is highly irregular. The best method to
calculate the rate is the - ANSWER-Six-second count method
While evaluating a 22-year-old female runner who called 911 because she fell and twisted her ankle, you
apply an ECG monitor. Her heart rate is 46, P waves are normal and upright, the PR interval is 0.16
second, and the QRS complex looks normal. There is a QRS complex following each P wave. The patient's
ECG tracing reflects: - ANSWER-Sinus bradycardia
, While evaluating a 22-year-old female runner who called 911 because she fell and twisted her ankle, you
apply an ECG monitor. Her heart rate is 46, P waves are normal and upright, the PR interval is 0.16
second, and the QRS complex looks normal. There is a QRS complex following each P wave. Treatment
for this patient's heart rate should include: - ANSWER-No treatment at this time
An undesirable side effect of atropine is: - ANSWER-Increased myocardial oxygen demand
Isoproterenol raises the heart rate by functioning as a: - ANSWER-Beta agonist
ECG analysis reveals that each P wave in the tracing has a different shape. The heart rate is 80 beats per
minute. This is called: - ANSWER-Wandering pacemaker
Which of the following may cause sinus bradycardia? - ANSWER-Intrinsic sinus node disease
Atropine works by inhibiting: - ANSWER-Parasympathetic response
An ECG strip shows a regular rhythm with a QRS complex of 0.08, a rate of 145, a PR interval of 0.12, and
one upright P wave before each QRS complex. You suspect that this rhythm is: - ANSWER-Sinus
tachycardia
You are called to evaluate a 64-year-old woman who complains of palpitations, weakness, and dizziness.
Her heart rate is 160 beats per minute, her blood pressure is 118/ 80 and her respiratory rate is 28. The
ECG tracing shows narrow QRS complexes and no identifiable P waves. This rhythm is most likely: -
ANSWER-SVT
You are called to evaluate a 64-year-old woman who complains of palpitations, weakness, and dizziness.
Her heart rate is 160 beats per minute, her blood pressure is 118/ 80 and her respiratory rate is 28. The
ECG tracing shows narrow QRS complexes and no identifiable P waves. The first recommended
treatment for this patient is: - ANSWER-Valsalva maneuver
Which of the followinYou are called to evaluate a 64-year-old woman who complains of palpitations,
weakness, and dizziness. Her heart rate is 160 beats per minute, her blood pressure is 118/ 80 and her
respiratory rate is 28. The ECG tracing shows narrow QRS complexes and no identifiable P waves. Which
of the following drugs is a class I (recommended) drug for this patient? - ANSWER-Adenosine
