Deck 33: Monitoring of the Ecg: Rhythm Analysis

Question 1

Sinus dysrhythmia is most notable in adults.

Answer 1

False

Question 2

The standard ECG monitor typically features a sensitivity and sweep speed control, output printer, lead selector, rate counter, monitor brightness control, and alarms.

Answer 2

True

Question 3

A patient with a prolonged QT segment is at risk for unstable ventricular tachycardia, specifically torsades de pointes.

Answer 3

True

Question 4

With a sinus bradycardia, most patients are not symptomatic until the heart rate falls below 40 bpm.

Question 5

If the PR interval is less than 0.20 seconds, then the impulse is delayed.

Question 6

Women on average have shorter QT intervals than men at a heart rate of 70 bpm.

Question 7

Little can be done to prevent vehicle motion artifact created by rough roads.

Question 8

Heart rates between 75 and 100 are considered to be normal or normocardiac.

Question 9

Many Paramedics use the same electrodes for the monitoring ECG as for a 12-lead ECG.

Question 10

Sinus rhythm naturally slows with exhalation and then accelerates during inspiration.

Question 11

Most ECG monitors self-calibrate, internally setting standard sweep speeds and gain, when initially switched on.

Question 12

During expiration, intrathoracic pressure increases.

Question 13

If the Paramedic needs to provide care to a patient with a Holter monitor, the monitor must be removed.

Question 14

Vertical fluctuations seen on the oscilloscope monitor cannot be measured.

Question 15

Paramedics use an electrocardiogram each day to monitor the cardiac rhythm in a significant proportion of their patients.

Question 16

The time for conduction down the intra-atrial pathways is rapid.

Question 17

The goal of prehospital ECG monitoring is to obtain a clear and accurate view of the heart's electrical activity quickly and dependably.

Question 18

Reading an ECG on a hard copy can be difficult at times; therefore, an electronic monitor can improve the accuracy of the analysis.

Question 19

If the negative lead is on the right shoulder and the positive lead is on the left leg, then the ECG machine is monitoring Lead I.

Question 20

For a surface ECG, the electricity must pass from the heart and up through the skin in order for the ECG to detect the current.

Question 21

Most Paramedics print out a copy of the ECG, called an ____.

A) ECG rhythm counter
B) ECG rhythm track
C) ECG rhythm strip
D) ECG rhythm sweep

Question 22

A sinus rhythm becomes a ____ when the rate falls below 60 bpm.

A) sinus tachycardia
B) sinus fibrillation
C) sinus bradycardia
D) sinus palipitation

Question 23

____ monitoring allows the patient to go about his routine work and play activities while the monitoring device records the ECG activity.

A) Hard wire
B) Body
C) Holter
D) Portable

Question 24

If only the occasional complex is wide (i.e., possibly of ventricular origin), then the Paramedic should concentrate on determining the underlying ____.

A) abnormality
B) secondary rhythm
C) primary rhythm
D) abnormality.

Question 25

Any rate below 60 is considered a(n) ____.

A) relative bradycardia
B) absolute bradycardia
C) lateral bradycardia
D) false bradycardia

Question 26

A horizontal left-to-right movement on an oscilloscope manifests on the screen as a(n) ____.

A) trace
B) track
C) signal
D) loop

Question 27

A(n) ____ provides Paramedics with information about the electrical activity of the patient's heart.

A) electroencephalogram
B) echocardiogram
C) Thallium scan
D) electrocardiogram

Question 28

Making sure that sweep speed and gain is up to standard is called ____.

A) baseline
B) standardization
C) normalization
D) calibration

Question 29

When an ectopic complex occurs at every other complex, it is called ____.

A) bigeminy
B) angina
C) fibrillation
D) palpitation

Question 30

____ fluctuations on an oscilloscope represent the voltage change from zero, either positive or negative.

A) Horizontal
B) Vertical
C) Lateral
D) Linear

Question 31

If there is no relationship between P waves and the QRS complex (AV dissociation), there may be a(n) ____.

A) complete heart block
B) ectopic focus
C) atrial blockage
D) ventricular blockage

Question 32

A trace can be measured and fluctuations expressed in terms of ____.

A) amplitude
B) phase
C) time
D) size

Question 33

Enlarge the tracing shown on the ECG monitor is called increasing the ____.

A) gain
B) sensitivity
C) echo
D) flow

Question 34

In some cases, the patient may experience a sensation of his or her heart racing, a phenomena called ____.

A) murmurs
B) palpitations
C) artifact
D) bigeminy

Question 35

A(n) ____ is a rate that is too slow for the patient's metabolic needs.

A) absolute bradycardia
B) absolute tachycardia
C) relative tachycardia
D) relative bradycardia

Question 36

When a P wave is ____, that means that it begins as a positive deflection then becomes a negative wave or vice versa.

A) aphasic
B) ectopic
C) equiphasic
D) biphasic

Question 37

To allow a patient to begin walking in his hospital room or out in the hallway, some places use ____ monitors.

A) telemetry
B) event
C) hard wire
D) local

Question 38

____, a disturbance in the isoelectric line, is the result of outside interference with the signal.

A) Artifact
B) Anomaly
C) Abnormality
D) Variance

Question 39

A(n) ____ analysis provides the building blocks to an ECG interpretation.

A) quantitative
B) qualitative
C) interpretive
D) descriptive

Question 40

If the differences in the flow of electricity in an ECG tracing resulted in a zero net difference in direction, then the resulting signal is ____.

A) diastolic
B) equiphasic
C) systolic
D) aphasic

Question 41

In the eyes of the public and many healthcare providers, the distinction between basic life support and advanced life support is the ____________________ machine.

Question 42

If the ectopic focus is ventricular, and the ventricular pacemaker becomes dominant, the patient may experience a rhythm called ventricular ____________________.

Question 43

An alteration in the speed of the tracing is an alteration in ____________________ speed.

Question 44

An ECG ____________________ is a view of the heart from one particular vantage point that helps to ascertain the dysrhythmia

Question 45

Portable ECG equipment consists of a(n) ____________________ and a printer needed to review and record ECG.

Question 46

A(n) ____________________ is a device that is a little larger than a credit card.

Question 47

Like bigeminy, ectopic complexes that occur three or four at a time are considered to be a(n) ____________________ or a run of ventricular tachycardia.

Question 48

Ventricular depolarization and repolarization is represented on the surface ECG tracing as the ____________________ interval.

Question 49

____________________ is the ability to broadcast the ECG via telephone or radio to a distant receiver, typically located at a hospital.

Question 50

A congenital abnormal pathway is called a(n) ____________________ pathway.