Quiz EKG And Telemetry
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Normal duration of QRS complex?
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0.06 to 0.10 seconds
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.04 to 0.90 seconds
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About This Quiz
Telemetry monitoring and EKGs both monitor a patient's heart activity. While the two systems are similar in many ways, they vary in some key areas. As such, it's not uncommon for people to wonder about the difference between what telemetry technicians and EKG technicians do. Take the test and see if you can note the difference.
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- 2.
Choose the correct placement of V1 :
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5th right intercostal space
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V2
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4th right intercostal space
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Where the sun don't shine
Correct Answer
A. 4th right intercostal spaceExplanation
The correct placement of V1 is in the 4th right intercostal space. This is a standard placement for the V1 electrode in an ECG (electrocardiogram) test. The intercostal spaces are the spaces between the ribs, and the 4th right intercostal space refers to the space on the right side of the chest, between the 4th and 5th ribs. This placement allows for accurate measurement of the electrical activity of the heart from this specific location.Rate this question:
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- 3.
What is the normal length in PR interval in both seconds and mm?
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0.12 to 0.18 seconds (3-5mm)
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0.12 to 0.20 seconds (3-5 mm)
Correct Answer
A. 0.12 to 0.20 seconds (3-5 mm)Explanation
The normal length of the PR interval is 0.12 to 0.20 seconds (3-5 mm). This indicates the time it takes for the electrical signal to travel from the atria to the ventricles in the heart. A PR interval within this range suggests a normal conduction of the electrical impulses and proper coordination between the atria and ventricles.Rate this question:
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- 4.
Premature atrial beat is every other beat
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Atrial Bigeminy
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Atrial Trigeminy
Correct Answer
A. Atrial BigeminyExplanation
Atrial bigeminy is a cardiac arrhythmia characterized by premature atrial beats occurring every other beat. This means that after every normal beat, there is a premature beat originating from the atria. This results in a pattern of alternating normal and premature beats, hence the term "bigeminy." Atrial trigeminy, on the other hand, refers to premature atrial beats occurring every third beat. Since the given description matches atrial bigeminy, it is the correct answer.Rate this question:
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- 5.
Midpoint between V2 and V4
Correct Answer
V3Explanation
The midpoint between V2 and V4 would be V3. The question is asking for the point that lies exactly in the middle of V2 and V4, and that point is V3.Rate this question:
- 6.
What would you typically see on EKG if a patient had Bundle Branch Block
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Wide QRS
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Narrow QRS
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Spiked PR interval
Correct Answer
A. Wide QRSExplanation
A bundle branch block is a condition where there is a delay or blockage in the electrical conduction through the bundle branches of the heart. This leads to a delay in the ventricles contracting, resulting in a widened QRS complex on an EKG. The QRS complex represents the depolarization of the ventricles, and a widened QRS indicates that the electrical impulse is taking longer to travel through the ventricles. Therefore, the correct answer is "Wide QRS."Rate this question:
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- 7.
Name the placement for V4
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Who cares
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5th intercostal space, anterior axillary line
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5th intercostal space, midclavicular line
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5th intercostal space midaxillary line
Correct Answer
A. 5th intercostal space, midclavicular lineExplanation
The correct answer is 5th intercostal space, midclavicular line. This is the correct placement for V4 in an ECG (electrocardiogram). V4 is typically placed in the 5th intercostal space, which is the space between the ribs, and it is positioned along the midclavicular line, which is a vertical line drawn down from the midpoint of the clavicle. This placement allows for accurate recording of the electrical activity of the heart from this specific lead.Rate this question:
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- 8.
What view of the heart does V1-V4 give ?
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Anterior
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Posterior
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Lateral
Correct Answer
A. AnteriorExplanation
V1-V4 leads in the electrocardiogram (ECG) provide a view of the anterior surface of the heart. These leads are placed on the chest in specific positions to capture electrical activity from the front of the heart. By analyzing the ECG waveform in these leads, healthcare professionals can assess the electrical conduction and function of the anterior part of the heart, including the left ventricle and the septum.Rate this question:
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- 9.
What segment, if elevated or depressed, reveals a sign of serious pathology?
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ST
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PR
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R-R
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QT
Correct Answer
A. STExplanation
Elevation or depression of the ST segment on an electrocardiogram (ECG) is a significant sign of serious pathology. The ST segment represents the interval between ventricular depolarization and repolarization. Any abnormality in this segment can indicate myocardial infarction, ischemia, or other cardiac conditions. Therefore, the correct answer is ST.Rate this question:
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- 10.
What wave represents ventricular repolarization?
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U wave
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P wave
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Q wave
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T wave
Correct Answer
A. T waveExplanation
The T wave represents ventricular repolarization. During ventricular repolarization, the ventricles of the heart relax and reset their electrical charge in preparation for the next heartbeat. The T wave on an electrocardiogram (ECG) represents this phase of the cardiac cycle. It shows the electrical activity as the ventricles recover and return to their resting state.Rate this question:
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- 11.
An R-R interval represents what on the EKG?
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Two complete cardiac cycles
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Rest and Relaxation
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One complete cardiac cycle
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Inferior MI
Correct Answer
A. One complete cardiac cycleExplanation
An R-R interval represents one complete cardiac cycle on an EKG. The R-R interval is the time between two consecutive R waves, which corresponds to the contraction and relaxation of the ventricles of the heart. This interval is used to measure the heart rate and assess the regularity of the heart rhythm.Rate this question:
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- 12.
Upon inspiration, your HR _________, and upon expiration, your HR ____________ ?
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Increases; decreases
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Decreases; increases
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Increases; increases
Correct Answer
A. Increases; decreasesExplanation
Just think= I for inspiration
I for increaseRate this question:
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- 13.
Vasovagal syncope is a reflex of ________response (dilates systemic arteries causing hypotension and slows SA node).
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Parasympathetic
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Sympathetic
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Pathetic
Correct Answer
A. ParasympatheticExplanation
Vasovagal syncope is a reflex that occurs when the parasympathetic nervous system is activated. This activation leads to the dilation of systemic arteries, causing a drop in blood pressure (hypotension). Additionally, it slows down the SA node, which is responsible for initiating the electrical signals that regulate the heart's rhythm. Therefore, the correct answer is parasympathetic.Rate this question:
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- 14.
The 4th intercostal space, right side of the sternum
Correct Answer
V1Explanation
V1 refers to the first lead of the electrocardiogram (ECG) placement on the chest. The placement of V1 is in the 4th intercostal space, which is the space between the ribs, on the right side of the sternum, which is the bone in the center of the chest. This specific placement allows for the accurate recording of electrical activity in the heart from this angle.Rate this question:
- 15.
What leads are considered inferior leads?
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II, III, aVF
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II, III, aVR
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I,II,III
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V1,II
Correct Answer
A. II, III, aVFExplanation
II, III, and aVF leads are considered inferior leads in electrocardiography. The term "inferior" refers to the anatomical location of these leads on the body. These leads are placed on the lower part of the chest and abdomen. The inferior leads are useful for detecting abnormalities in the inferior wall of the heart, including the right ventricle and the inferior part of the left ventricle. They are particularly important in diagnosing conditions such as inferior myocardial infarction.Rate this question:
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- 16.
Name the correct placement of V2:
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4th left intercostal space
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4th right intercostal space
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5th left intercostal space
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5th right intercostal space
Correct Answer
A. 4th left intercostal spaceExplanation
The correct placement of V2 is in the 4th left intercostal space. This is a specific location on the chest where the electrode for lead V2 is placed during an electrocardiogram (ECG) test. The ECG measures the electrical activity of the heart and helps diagnose various heart conditions. Placing the electrode in the correct position allows for accurate readings of the heart's electrical signals.Rate this question:
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- 17.
What view of the heart does V5-V6 give ?
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Left lateral view
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Right lateral view
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Mid axillary view
Correct Answer
A. Left lateral viewExplanation
V5-V6 electrodes are placed on the left side of the chest, specifically on the left anterior axillary line and left midaxillary line respectively. These positions provide a left lateral view of the heart. This view allows for the visualization of the left ventricle, left atrium, and the lateral walls of the heart. The electrical activity recorded from these electrodes helps in diagnosing conditions such as left ventricular hypertrophy and myocardial infarction in the lateral wall of the heart.Rate this question:
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- 18.
This EKG finding is pathognomonic for which of the diseases below: S1 Q3 T(inverted)3
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Pulmonary Embolism
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COPD
Correct Answer
A. Pulmonary EmbolismExplanation
The EKG finding of S1 Q3 T3 inversion is pathognomonic for pulmonary embolism. This specific pattern is commonly seen in patients with acute pulmonary embolism, where there is a deep S wave in lead I, a Q wave in lead III, and an inverted T wave in lead III. This finding is believed to be caused by right ventricular strain and acute right heart overload due to the obstruction of pulmonary arteries by a blood clot. It is important to recognize this EKG pattern as it can help in the early diagnosis of pulmonary embolism and prompt initiation of appropriate treatment.Rate this question:
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- 19.
You would typically see a peaked, tent like T wave in what condition?
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Hyperkalemia
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Hypokalemia
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Hypercalemia
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Hyponatremia
Correct Answer
A. HyperkalemiaExplanation
T wave is a tent that holds K+ ions.
Hyperkalemia has many K+ ions so is a tall tent
Hypokalemia has little K+ ions so is a collapsed tentRate this question:
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- 20.
What is the best match for the following definition: a barely detectable rate change in sinus pacing related to inspiration and expiration ?
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Atrial arrythmia
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Atrioventricular arrythmia
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Sinus arrythmia
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Ventricular arrythmia
Correct Answer
A. Sinus arrythmiaExplanation
Sinus arrhythmia is the best match for the given definition. Sinus arrhythmia refers to a barely detectable rate change in the pacing of the heart's sinus node, which is influenced by the process of inspiration and expiration. This phenomenon causes the heart rate to slightly increase during inspiration and decrease during expiration. It is a normal variation in heart rhythm and is commonly observed in healthy individuals. Atrial arrhythmia, atrioventricular arrhythmia, and ventricular arrhythmia do not specifically involve rate changes related to inspiration and expiration, making them less suitable matches for the given definition.Rate this question:
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- 21.
In which leads would you see a positive P wave?
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I, II, III
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AVL, AVF, V4-V6
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V4-V6
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I, II, AVL, AVF, V4-V6
Correct Answer
A. I, II, AVL, AVF, V4-V6Explanation
The P wave represents atrial depolarization in an electrocardiogram (ECG). It is a small upward deflection before the QRS complex. A positive P wave indicates that the electrical activity is moving towards the positive electrode. In leads I, II, AVL, AVF, V4-V6, the positive electrode is positioned in a way that it can detect the atrial depolarization moving towards it, hence resulting in a positive P wave.Rate this question:
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- 22.
What part of the EKG is known as the "plateau phase", and represents the initial part of ventricular repolarization?
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S Wave
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ST Segment
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PR interval
Correct Answer
A. ST SegmentExplanation
The ST segment of the EKG is known as the "plateau phase" and represents the initial part of ventricular repolarization. During this phase, the ventricles are in a state of electrical recovery and preparing for the next heartbeat. The ST segment is important in diagnosing various cardiac conditions, such as myocardial infarction, as any deviations from the normal baseline can indicate abnormalities in the heart's electrical activity.Rate this question:
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- 23.
One large square is equal to what amount of time (and distance) on EKG?
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2 sec/.5mm
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20 sec/5 mm
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0.02 sec/0.5mm
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0.2 sec/5mm
Correct Answer
A. 0.2 sec/5mmExplanation
The correct answer is 0.2 sec/5mm. This means that one large square on an EKG represents a time interval of 0.2 seconds and a distance of 5 millimeters. The EKG measures the electrical activity of the heart, and each square on the EKG paper represents a specific time and distance measurement. Therefore, this answer correctly identifies the time and distance represented by one large square on the EKG.Rate this question:
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- 24.
_____________ is an irregular rhythm produced by pacemaker activity wandering from SA node.
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Sinoatrial pacemaker
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Wandering pacemaker
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ICD
Correct Answer
A. Wandering pacemakerExplanation
Wandering pacemaker refers to an irregular rhythm that occurs when the pacemaker activity wanders away from the sinoatrial (SA) node, which is the normal pacemaker of the heart. In this condition, the pacemaker activity shifts between the SA node and other sites within the atria. This results in an irregularity in the heart's rhythm. Therefore, the correct answer is wandering pacemaker.Rate this question:
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- 25.
One small square on an EKG is equivalent to how much time ( and what distance)?
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0.04 sec (2mm)
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0.20 sec (1mm)
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.04 sec (1mm)
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.01 sec (1mm)
Correct Answer
A. .04 sec (1mm)Explanation
In an EKG, the small squares on the graph paper represent a specific amount of time. The standard measurement is that one small square equals 0.04 seconds. Additionally, the small squares also represent a specific distance, with each small square measuring 1 millimeter. Therefore, the correct answer is ".04 sec (1mm)" as it accurately represents the time and distance measurement of one small square on an EKG.Rate this question:
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- 26.
In which lead is the P wave best seen?
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II
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III
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AvF
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V1
Correct Answer
A. IIExplanation
The P wave represents atrial depolarization in an electrocardiogram (ECG). Lead II is positioned between the right arm and left leg, providing a good view of the electrical activity in the heart's inferior region. This makes it the best lead to visualize the P wave, as it captures the atrial depolarization from a more optimal angle.Rate this question:
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- 27.
The 5th intercostal space, midaxillary line, left side
Correct Answer
V6Explanation
V6 refers to the 6th lead on a 12-lead electrocardiogram (ECG) and is placed in the 5th intercostal space, midaxillary line, on the left side of the chest. This lead provides information about the electrical activity of the heart from a specific angle, allowing for the detection of abnormalities or changes in the heart's rhythm or function. By placing V6 in this specific location, healthcare professionals can obtain a clear and accurate representation of the electrical activity in the left ventricle of the heart.Rate this question:
- 28.
The QT interval varies with heart rate, and thus must be corrected. This corrected QT interval is also abbreviated as (QTc). This value is considered normal when it's less than half of the _____ interval at normal rates.
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P-R
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Q-R
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R-R
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P-P
Correct Answer
A. R-RExplanation
The QT interval is a measure of the time it takes for the ventricles of the heart to contract and then recover. It is influenced by the heart rate, with shorter QT intervals at faster heart rates and longer QT intervals at slower heart rates. To account for this variability, the QT interval is corrected using the R-R interval, which represents the time between consecutive ventricular contractions. The corrected QT interval (QTc) is considered normal when it is less than half of the R-R interval at normal heart rates.Rate this question:
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- 29.
The rate of Paroxysmal tachycardia is typically:
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350+ bpm
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150-250 bpm
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150-300 bpm
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250-350 bpm
Correct Answer
A. 150-250 bpmExplanation
Paroxysmal tachycardia is a condition characterized by sudden, rapid heartbeats that start and stop abruptly. The correct answer, 150-250 bpm, indicates that the typical heart rate during an episode of paroxysmal tachycardia falls within this range. This means that during an episode, the heart rate can range from 150 beats per minute to 250 beats per minute.Rate this question:
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- 30.
ST segment elevation is a sign of:
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Acute ischemic injury
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COPD
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Previous MI
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Heart transplant
Correct Answer
A. Acute ischemic injuryExplanation
ST segment elevation on an electrocardiogram is a characteristic sign of acute ischemic injury. This elevation indicates that there is an obstruction in the blood flow to the heart, leading to inadequate oxygen supply to the affected area. This is commonly seen in conditions such as myocardial infarction (heart attack) where there is a sudden blockage in the coronary arteries supplying the heart muscle. It is an important diagnostic criterion for identifying acute ischemic injury and prompt medical intervention is required to restore blood flow and prevent further damage to the heart.Rate this question:
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- 31.
What does the Sympathetic system do to the heart, and what receptors are associated with it?
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Constrict arteries (alpha 1 adrenergic receptors)
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Constrict veins(beta 1 adrenergic receptors)
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Relax arteries (alpha 1 adrenergic receptors)
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Relax arteries (beta 1 adrenergic receptors)
Correct Answer
A. Constrict arteries (alpha 1 adrenergic receptors)Explanation
The sympathetic system constricts arteries through the activation of alpha 1 adrenergic receptors. These receptors are responsible for causing vasoconstriction, which leads to a narrowing of the arteries. This response increases blood pressure and redirects blood flow to vital organs during times of stress or danger.Rate this question:
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- 32.
What is another name for an automaticity focus that transiently escapes overdrive suppression to emit one beat (atrial, junctional, or ventricular)?
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Escape rhythm
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Escape beat
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Aberrant beat
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Aberrant rhythm
Correct Answer
A. Escape beatExplanation
An escape beat is another name for an automaticity focus that transiently escapes overdrive suppression to emit one beat. It refers to a single beat that occurs when the normal pacemaker fails to fire or is suppressed, and another pacemaker site takes over temporarily. This can happen in the atria, junctional area, or ventricles, resulting in an escape beat.Rate this question:
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- 33.
Which would you expect to see on EKG of a patient with normal axis?
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Positive QRS in V1; negative QRS in Lead I
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Positive QRS in lead I, positive QRS in lead AVF
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Negative QRS in lead I, positive QRS in lead AVF
Correct Answer
A. Positive QRS in lead I, positive QRS in lead AVFExplanation
A patient with normal axis would be expected to have a positive QRS in lead I and a positive QRS in lead AVF. This is because the electrical activity of the heart is normally directed towards the left ventricle, which generates a positive deflection in lead I. Additionally, the electrical activity is also directed towards the inferior part of the heart, which generates a positive deflection in lead AVF. Therefore, a patient with normal axis would exhibit positive QRS complexes in both lead I and lead AVF.Rate this question:
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- 34.
1. a _____ escape beat produces a large QRS. 2.a _______escape beat may produce a retrograde P' before/after/buried within QRS, 3. A______escape beat is followed by P',
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1. ventricular; 2. junctional; 3. atrial
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1. junctional; 2.atrial; 3. ventricular
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1. atrial; 2. junctional; 3. ventricular
Correct Answer
A. 1. ventricular; 2. junctional; 3. atrialExplanation
A ventricular escape beat produces a large QRS complex because it originates from the ventricles, which have a larger muscle mass compared to the atria. A junctional escape beat may produce a retrograde P' wave before, after, or buried within the QRS complex because it originates from the AV junction, which can cause the electrical signal to travel backwards towards the atria. An atrial escape beat is followed by a P' wave because it originates from the atria, which results in a normal atrial depolarization before the ventricles contract.Rate this question:
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- 35.
If you see an inverted, symmetric T wave on an EKG, especially in V2-V6, what does the pt most likely have?
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Ischemia
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MI
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Brugada
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Digitalis toxicity
Correct Answer
A. IschemiaExplanation
If an inverted, symmetric T wave is observed on an EKG, particularly in leads V2-V6, it is most likely indicative of ischemia. Ischemia refers to inadequate blood flow to the heart, which can be caused by a blockage or narrowing of the coronary arteries. This can lead to a lack of oxygen and nutrients reaching the heart muscle, resulting in changes in the EKG waveform, such as an inverted T wave. MI (myocardial infarction) and Brugada syndrome can also cause abnormal EKG findings, but in this case, the most likely cause is ischemia. Digitalis toxicity is not typically associated with inverted T waves.Rate this question:
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- 36.
What leads are considered (left) lateral leads?
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I aVR
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I, aVL
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V5,V6
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II,III
Correct Answer
A. I, aVLExplanation
The leads I and aVL are considered (left) lateral leads because they are positioned on the left side of the heart. These leads provide a view of the lateral wall of the left ventricle and help in diagnosing conditions such as myocardial infarction or ischemia affecting this area. The other leads mentioned, aVR, V5, V6, II, and III, are not considered lateral leads as they do not provide a direct view of the lateral wall.Rate this question:
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- 37.
Which of the following best represents the normal height of the T WAVE?
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1/2-2/3 height of corresponding R wave
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1/3-2/3 height of corresponding R wave
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1/3-2/3 height of corresponding T wave
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1/2-2/3 height of corresponding T wave
Correct Answer
A. 1/3-2/3 height of corresponding R waveExplanation
The T wave represents the repolarization of the ventricles in the heart. It is typically a positive deflection on an ECG waveform. The normal height of the T wave is usually between 1/3 and 2/3 of the height of the corresponding R wave. This means that the T wave is generally smaller in amplitude compared to the R wave.Rate this question:
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- 38.
What disease shows a HR > 100 bpm·and P' waves of various shape?
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Multifocal Atrial Tachycardia
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Atrial Tachycardia
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Paroxysmal Atrial Tachycardia
Correct Answer
A. Multifocal Atrial TachycardiaExplanation
Different atrial foci firing= different p wave morphologiesRate this question:
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- 39.
What would you most likely see in Left Ventricular Hypertrophy?
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Right axis deviation
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Deep S wave in V1 and Large R wave in V5
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Steep R wave in V1 and Wide QRS in V5
Correct Answer
A. Deep S wave in V1 and Large R wave in V5Explanation
In Left Ventricular Hypertrophy, there is an enlargement of the left ventricle of the heart. This causes changes in the electrical activity of the heart, which can be seen on an electrocardiogram (ECG). One of the characteristic findings in Left Ventricular Hypertrophy is a deep S wave in lead V1 and a large R wave in lead V5. This pattern is indicative of the changes in ventricular depolarization that occur in this condition.Rate this question:
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- 40.
In an anterior hemiblock you would typically see_____ In a posterior hemiblock you would typically see ______
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LAD; RAD
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RAD; LAD
Correct Answer
A. LAD; RADExplanation
In an anterior hemiblock, the left anterior fascicle of the bundle branch is blocked, leading to delayed conduction of electrical signals in the left ventricle. This results in a characteristic pattern on an electrocardiogram (ECG) known as left axis deviation (LAD). On the other hand, in a posterior hemiblock, the right posterior fascicle of the bundle branch is blocked, causing delayed conduction in the right ventricle. This leads to right axis deviation (RAD) on the ECG. Therefore, the correct answer is LAD; RAD.Rate this question:
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- 41.
Regarding the QRS complex: In which lead(s) would you see a TALL R wave?
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V5
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V6
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V1,V2
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V5,V6
Correct Answer
A. V5,V6Explanation
The QRS complex represents the depolarization of the ventricles during a heartbeat. A tall R wave in the QRS complex indicates a strong depolarization of the ventricles. In leads V5 and V6, the electrodes are placed over the left ventricle, which is responsible for generating a large portion of the electrical activity during depolarization. Therefore, it is expected to see a tall R wave in leads V5 and V6.Rate this question:
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- 42.
In what leads do you see an "R wave progression"?
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V1 to v6
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V2 to v4
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V5 to v6
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V1 to v4
Correct Answer
A. V1 to v6Explanation
The correct answer is v1 to v6. R wave progression refers to the gradual increase in the amplitude of R waves from lead V1 to V6 on an electrocardiogram (ECG). In a normal ECG, the R wave should progressively increase in amplitude from V1 to V6, indicating normal ventricular depolarization. This pattern can be disrupted in certain cardiac conditions such as myocardial infarction or ventricular hypertrophy. Therefore, the presence of R wave progression in leads V1 to V6 suggests a normal cardiac electrical conduction.Rate this question:
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- 43.
What disease do you see QRS complexes of small amplitude in all leads?
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COPD
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Posterior/Inferior MI
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LAD
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I hate ROME
Correct Answer
A. COPDExplanation
In COPD (Chronic Obstructive Pulmonary Disease), the QRS complexes of small amplitude can be seen in all leads. This is due to the hyperinflation of the lungs, which causes the heart to be positioned more horizontally and further away from the chest leads. As a result, the electrical activity of the heart is attenuated, leading to smaller QRS complexes on the ECG. This finding is commonly observed in patients with COPD.Rate this question:
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- 44.
Horizontal heart is most typically found in slender patients.
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True
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False
Correct Answer
A. FalseExplanation
*Vertical heart = found in tall/slender patients
*Horizontal heart = found in obese patients due to abdomen pressure pushing up on diaphragmRate this question:
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- 45.
The 5th intercostal space, midciavicular line left side is:
Correct Answer
V4 - 46.
What is always the tail of the mean QRS vector?
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SA Node
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AV Node
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IV septum
Correct Answer
A. AV NodeExplanation
The AV node is always the tail of the mean QRS vector. The mean QRS vector represents the average direction of electrical activity during ventricular depolarization. The AV node is located at the base of the atria and is responsible for delaying the electrical impulse before it is conducted to the ventricles. Since the mean QRS vector represents ventricular depolarization, the AV node, being the last structure involved in the conduction pathway before the ventricles, is always the tail of the mean QRS vector.Rate this question:
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- 47.
What plane does axis rotation take place in?
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Horizontal
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Vertical
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Frontal
Correct Answer
A. HorizontalExplanation
Axis rotation refers to the rotation of an object around a fixed axis. In this case, the question is asking about the plane in which this rotation takes place. The correct answer is horizontal because horizontal refers to the plane that is parallel to the ground or the horizon. Therefore, when an object rotates around its axis, it rotates in a horizontal plane.Rate this question:
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- 48.
What would cause an inverted P’ immediately before premature QRS?
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Premature junctional beat causing retrograde atrial depolarization
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Premature junctional beat causing retrograde atrial repolarization
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Premature atrial beat causing retrograde atrial depolarization
Correct Answer
A. Premature junctional beat causing retrograde atrial depolarizationExplanation
A premature junctional beat occurs when the electrical signals in the heart originate from the junction between the atria and the ventricles, instead of the normal site in the atria. In this case, the premature junctional beat causes an abnormal depolarization of the atria, which is conducted in a retrograde manner towards the atria. This retrograde atrial depolarization results in an inverted P' wave immediately before the premature QRS complex.Rate this question:
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- 49.
What would you most likely see in Right Ventricular Hypertrophy?
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Large R wave in V1,with R wave getting smaller from V2-V3-V4
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Biphasic P wave
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Deep S wave in V1, with s wave getting smaller from V2-V3-V4
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Q wave
Correct Answer
A. Large R wave in V1,with R wave getting smaller from V2-V3-V4Explanation
In Right Ventricular Hypertrophy, the right ventricle becomes enlarged and the electrical activity in the heart is affected. This leads to changes in the ECG waveform. One characteristic finding is a large R wave in lead V1, which indicates increased electrical activity in the right ventricle. As we move from lead V2 to V4, the R wave gradually decreases in size. This pattern is consistent with the electrical changes seen in Right Ventricular Hypertrophy.Rate this question:
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