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Quizzes > Health & Medicine

Telemetry Quiz: Test Your EKG Rhythm Reading Skills

Quick, free telemetry practice test with instant feedback and clear explanations.

Editorial: Review CompletedCreated By: Youngil KimUpdated Aug 25, 2025
Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art illustration for EKG and telemetry test quiz on a teal background

This telemetry quiz helps you read rhythm strips, recognize key EKG rhythms, and build confidence for class, clinical shifts, or an exam. Work at your pace and get instant feedback as you answer. If you want more practice, try a telemetry practice test, an ekg practice test, or an ecg practice test to keep your skills sharp.

Which node normally initiates the electrical impulse that starts each heartbeat on an EKG?
Purkinje fibers
Bundle of His
Atrioventricular node
Sinoatrial node - the heart's primary pacemaker
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On a standard EKG, one large box on the horizontal axis represents how much time?
0.10 seconds
0.04 seconds
0.20 seconds
0.50 seconds
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In normal sinus rhythm, P waves are upright in lead II and each P wave is followed by a QRS complex.
False
True
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Lead placement: Where is V1 placed on the chest?
4th intercostal space at the right sternal border
5th intercostal space at the midclavicular line
5th intercostal space at the anterior axillary line
4th intercostal space at the left sternal border
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Atrial fibrillation typically shows which hallmark on telemetry?
Regular narrow-complex tachycardia with visible P before each QRS
Wide-complex rhythm with fusion beats
Irregularly irregular R-R intervals with no distinct P waves
Sawtooth flutter waves with regular ventricular response
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Hypokalemia is often associated with visible U waves on the EKG.
False
True
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The PR interval represents conduction time from the atria through which structure?
Atrioventricular node and His-Purkinje system
Sinoatrial node only
Ventricular myocardium only
Coronary sinus
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Hyperkalemia classically produces which EKG change first?
Peaked, narrow T waves
Diffuse ST elevation with PR depression
Pathologic Q waves
Prominent U waves
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Which rhythm is best described as regular narrow-complex tachycardia often terminated by adenosine?
Idioventricular rhythm
Ventricular tachycardia
Atrial flutter with variable block
AV nodal reentrant tachycardia (AVNRT)
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In second-degree AV block Mobitz I (Wenckebach), the PR interval progressively lengthens before a dropped beat.
False
True
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In Mobitz II block, PR intervals vary randomly before dropped QRS complexes.
False
True
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Torsades de pointes is most strongly associated with which underlying EKG abnormality?
Right axis deviation
Short PR interval
Delta wave
Prolonged QT interval
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Which finding most suggests acute pericarditis on EKG?
Isolated aVR ST elevation with V1 ST depression
Diffuse ST elevation with PR depression
Deep symmetrical T-wave inversions only in V1-V3
Localized ST elevation in contiguous leads with reciprocal depression
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Pathologic Q waves typically indicate transmural infarction and are usually defined as which of the following?
Q wave depth > 1 mm in any single lead
Q wave present only in V1
Q wave width >= 0.04 s and depth >= 25% of following R in at least two contiguous leads
Any Q wave in aVR
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Bazett's formula for QTc is QT divided by the square root of the RR interval (in seconds).
True
False
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Which lead reversal classically produces negative P, QRS, and T in lead I with swapped I and aVL morphologies?
Right and left arm lead reversal
Left arm and left leg reversal
Precordial V1-V2 swap
Right arm and left leg reversal
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In ventricular tachycardia, capture or fusion beats may be seen and suggest a ventricular origin.
True
False
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ST elevation limited to aVR with diffuse ST depression elsewhere suggests left main or proximal multivessel ischemia.
True
False
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Brugada pattern is characterized by coved ST elevation in V1-V3 with a pseudo-RBBB pattern.
True
False
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A true posterior MI may show ST depression in V1-V3 and tall R waves; posterior leads V7-V9 can confirm ST elevation.
True
False
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0

Study Outcomes

  1. Identify Key Cardiac Rhythms -

    Recognize normal and abnormal EKG waveforms commonly encountered in telemetry monitoring to prepare for your telemetry test.

  2. Apply Correct Lead Placement -

    Demonstrate accurate electrode positioning techniques to ensure reliable EKG readings during clinical telemetry practice.

  3. Analyze Arrhythmias -

    Interpret EKG strips to distinguish between various dysrhythmias and make informed decisions on the telemetry practice exam.

  4. Interpret Alarm Management -

    Understand alarm parameters and develop appropriate responses to critical events in an acute care setting.

  5. Reinforce Knowledge with Instant Feedback -

    Use quiz scoring and detailed explanations to identify strengths and address gaps before the tele test.

  6. Boost Confidence for Telemetry Exams -

    Build competence and self-assurance through targeted questions in this free telemetry practice quiz.

Cheat Sheet

  1. ECG Waveform Components -

    Recognize the P wave, QRS complex, and T wave morphology on any telemetry strip by using the American Heart Association's standardized definitions. A handy mnemonic is "Please Quit Running Together," which reminds you of P - QRS - T order and helps ensure you never skip a segment. Precise identification of these segments is critical for detecting conduction delays or ischemic changes (AHA, 2020).

  2. Heart Rate Calculation: 300 & 1,500 Rules -

    Use the 300-rule (large boxes) and 1,500-rule (small boxes) to quickly estimate rate: divide 300 by the number of large boxes between R waves or 1,500 by small boxes. For example, if three large boxes separate two R waves, the rate is 100 bpm (300รท3). These methods are endorsed in ACLS guidelines for rapid bedside assessment (Neumar et al., 2010).

  3. Accurate Lead Placement -

    Ensure correct electrode positioning (e.g., V1 - V6, right arm, left arm, left leg) to avoid misreads like "pseudo-infarcts." A useful trick is "V1 and V2 at the 4th ICS, then fan rightward to V6." Proper placement reduces artifact and improves arrhythmia detection (Johns Hopkins Nursing, 2018).

  4. Arrhythmia Recognition Mnemonics -

    Memorize common rhythm patterns - NSR, atrial fibrillation, ventricular tachycardia - using "Some Average Ventricles" (SAV): Sinus, Atrial, Ventricular. This grouping helps you categorize wide vs. narrow QRS and regularity in seconds. Quick pattern recall is backed by research from the University of Pennsylvania's telemetry curriculum (2021).

  5. Alarm Management & Troubleshooting -

    Set appropriate alarm thresholds for rate, ST changes, and pause duration to minimize false alarms and alarm fatigue. If alarms persist, check lead adhesion, patient movement, and electrode expiration date. The AACN Practice Alert recommends a "5-step alarm safety checklist" for consistency and patient safety (AACN, 2013).

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