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Baycare EKG Tests (Latest 2024/ 2025 Updates STUDY
BUNDLE PACKAGE WITH SOLUTIONS) Qs & As| 100%
Correct| Grade A (Verified Answers)
The most serious of the four AV blocks is: - ANSWERThird Degree An atrial arrhythmia that occurs when the pacemaker role switches from the SA node to the atria and back again is called: - ANSWERWandering Pacemaker First Degree Heart Block is caused by - ANSWERslow conduction through the AV node When you encounter a rhythm that is irregular with no mappable P waves you should suspect: - ANSWERAtrial Fibrillation In a Wenckebach, not every P wave is followed by a - ANSWERQRS complex A basic rule for ventricular arrhythmia is that the QRS will be - ANSWER0.12 seconds or greater A rhythm that is regularly irregular would describe a rhythm that - ANSWERhas a pattern to its irregularity Which of the following is NOT true about the P wave in all junctional rhythms? - ANSWERIt is unrelated to the QRS Which of the following is the LEAST accurate way to determine a heart rate? - ANSWERCount the number of QRS complexes in a 6 second strip and multiply by 10 AV dissociation is a feature of - ANSWERThird Degree Heart Block If polarizing is considered the ready state, then __________ would be considered the recovery state. - ANSWERRepolarization The most important diagnostic feature for any of the AV blocks is - ANSWERPRI The rhythm in which the atrial waves are seen as a sawtooth is called - ANSWERAtrial Flutter The presenting problem with sinus bradycardia is that - ANSWERthe rate is too slow The vertical lines on the EKG graph paper measure - ANSWERTime Which of the following is NOT true about multifocal PVC's? - ANSWERThey usually look alike.
The rate for sinus tachycardia is - ANSWERgreater than 100 bpm The inherent rate of the AV junction is - ANSWER40-60 bpm When PVC's appear in a pattern where every third beat is a PVC, the pattern is called
- ANSWERtrigeminy A compensatory pause is a - ANSWERdelay following a PVC It is very common for the P waves in atrial tachycardia to be - ANSWERhidden in the T wave Which of the following best describes the elements of a single cardiac cycle - ANSWERP wave, PR segment, QRS complex, and T wave The rate for an idioventricular rhythm is - ANSWER20- The QRS in Atrial Fibrillation should be - ANSWERLess than 0.12 seconds The standard systematic approach to arrhythmia interpretation consists of all of the following except - ANSWERrefractory periods Which of the following is a feature of the Type II second degree heart block - ANSWERThe PRI is consistent on conducted beats In Wandering Pacemaker, the heart's pacemaker site shifts between - ANSWERthe SA node and AV nodes A strong impulse can cause a premature abnormal discharge during the - ANSWERrelative refractory period In type II second degree heart block with variable conduction, the R-R interval will - ANSWERbe irregular For sinus tachycardia the QRS complex should be less than - ANSWER0.12 seconds In lead II the junctional impulse that depolarizes the atria is travelling away fromthe positive electrod, thus producing a P wave that is - ANSWERinverted A premature atria complex is - ANSWERa single ectopic beat Part of the parasympathetic branch of the autonomic nervous system is - ANSWERvagus The cardiac activity that takes place about the ventricles is referred to as - ANSWERsupraventricular activity
Which of the following is not part of a normal cardiac conduction system? - ANSWERcoronary sinus The distance between two tic marks is - ANSWER3 seconds In First Degree Heartblock, what additional features must you identify? - ANSWERunderlying rhythm The deflections above and below the isoelectric line are referred to as - ANSWERwaves Which of the following is a feature of asystole? - ANSWERno measurable waves or complexes What is the term for the fail safe mechanism that allows a lower pacemaker to take over when a higher site fails? - ANSWERescape In complete heart block, the PR interval is - ANSWERP waves are not related to QRS complexes. No impulse can cause depolarization during the - ANSWERabsolute refractory period The short period of electrical inactivity between the P wave and the start of the QRS complex is called - ANSWERPR segment The EKG machine will produce an upright deflection on the graph paper if the flow of electricity is toward the - ANSWERpositive electrode Which of the following best explains the mechanism called irritability? - ANSWERA lower pacemaker site speeds up to take control of the heart beat. When a P wave originates in the SA node, it is expected to be smooth, rounded, and
- ANSWERupright in lead II Which of the following terms does NOT apply to premature junctional complex? - ANSWERSuppression The rate for junctional tachycardia is - ANSWER100-180 bpm When a rhythm is regular with narrow QRS complexes, but firing at a rate so fast that you can't distinguish the P waves to identify it more accurately, you can call the rhythm - ANSWERsupraventricular tachycardia When a sinus rhythm has a QRS complex of 0.12 seconds or greater, you know that this is an abnormality and would note that it has - ANSWERa wide QRS
A basic rule of electricity is that current flowing toward a positive electrode (or away from a negative electrode) will produce a deflection that is - ANSWERupright Third degree heart block is also considered - ANSWERComplete Heart Block Second degree heart block is cause by - ANSWERIntermittent AV conduction Which cardiac cells are responsible for initiating and conducting pacemaker impulses
- ANSWERelectrical cells The QRS complex in all atrial rhythms is expected to be - ANSWERnormal A normal sinus rhythm should have a QRS of less than - ANSWER0.12 seconds On EKG graph paper, the time between two heavy vertical lines is five small boxes or
- ANSWER0.20 seconds The PR interval begins at the first sign of the P wave and ends at the first sign of the next deflection, which is called the - ANSWERQRS complex Two PVC's attached together are referred to as - ANSWERa couplet If a rhythm is regular is the most accurate way to calculate heart rate is to count the number of small squares between two R waves and divide the total into - ANSWER Atrial fibrillation has - ANSWERno discernible P waves In first degree heart block, the PR interval is - ANSWERGreater than 0. In third degree heart block with a rate of 40-60 bpm, with a QRS of less than 0. seconds you should suspect that the pacemaker controlling the heart is located in the - ANSWERAV junction In first degree heart block, conduction through the AV node will be - ANSWERprolonged on every beat The rate for junctional escape rhythm is - ANSWER40-60 bpm In a normal sinus rhythm, the heart rate is - ANSWER60-100 bpm In the third degree heart block the pacemaker can be in either the - ANSWERAV junction or ventricles The rate for sinus bradycardia is - ANSWERless than 60 bpm
In sinus arrhythmia, the R-R intervals are - ANSWERirregular The heart rate for ventricular tachycardia is - ANSWER150-250 bpm Which of the following is the premier diagnostic feature of ventricular fibrillation - ANSWERno measurable waves or complexes The presenting problem with sinus tachycardia is that - ANSWERthe rate is too fast If a QRS complex measures less than 0.12 seconds, you know that it did not originate in the - ANSWERventricles Atrial tachycardia usually has a rate of - ANSWER150- Which of the following is NOT a typical feature of a premature ventricular complex? - ANSWERpreceded by upward P wave The term tachycardia means - ANSWERfast heart The presenting problem with sinus arrhythmia is that - ANSWERthe rhythm is irregular In a junctional rhythm, the pacemaking impulses originate in the - ANSWERAV junction When stimulated, the ________ branch of the nervous system will increase the heart rate, AV conduction and irritability. - ANSWERsympathetic In sinus arrhythmia, the heart rate is usually - ANSWER60-100 bpm The rhythm that is the result of the total absence of cardiac electrical activity is referred to as - ANSWERasystole Which of the following is not caused by irritability? - ANSWERIdioventricular rhythm
