BAYCARE EKG CORE EXAM SET 2025/2026 QUESTIONS
AND ANSWERS GRADED A++
✔✔Which of the following sinus rhythms would be expected with stimulation of the
sympathetic nervous system?
Select one:
a. Sinus rhythm rate 68
b. Sinus bradycardia rate 45
c. Sinus arrhythmia rate 45-73
d. Sinus tachycardia rate 125 - ✔✔Sinus tachycardia rate 125
✔✔In which rhythm is an escape beat sometimes seen?
Select one:
a. Sinus rhythm
b. Sinus bradycardia
c. Sinus arrhythmia
d. Sinus arrest - ✔✔Sinus arrest.
✔✔Sinus rhythms all have
Select one:
a. Uniform shape P waves preceding the QRS complexes.
b. Multiple shapes of P waves preceding the QRS complexes.
c. A wavy baseline without P waves or QRS complexes.
d. Inverted P waves in lead II. - ✔✔Uniform shape P waves preceding the QRS
complexes
✔✔Atropine's mode of action is to
Select one:
a. Speed up the rate of sinus node firing and speed conduction through the AV node.
b. Speed impulse conduction through the bundle branches and AV node.
c. Slow the rate of conduction through the AV node and slow sinus node firing.
d. Speed sinus node firing and slow AV node conduction. - ✔✔Speed up the rate of
sinus node firing and speed conduction through the AV node..
✔✔Treatment for sinus tachycardia associated with a high fever would be to
Select one:
a. Give atropine.
b. Start CPR.
c. Give acetaminophen or ibuprofen to get the temperature down.
d. Give beta-blockers. - ✔✔Give acetaminophen or ibuprofen to get the temperature
down.
✔✔Thyrotoxicosis is a condition associated with which rhythm?
Select one:
a. Sinus block
, b. Sinus arrest
c. Sinus tachycardia
d. Sinus bradycardia - ✔✔Sinus tachycardia.
✔✔Sinus tachycardia's causes can include which of the following?
Select one:
a. Fever
b. Anxiety
c. Congestive heart failure
d. All of the above - ✔✔All of the above
✔✔A junctional escape beat is a beat from the
Select one:
a. Ventricle.
b. AV junction.
c. Bundle branches.
d. Sinus node. - ✔✔AV junction.
✔✔Which of the following has a heart rate less than 60?
Select one:
a. Sinus rhythm
b. Sinus bradycardia
c. Sinus tachycardia
d. Atrial tachycardia - ✔✔Sinus bradycardia
✔✔Which of the following is an irregular rhythm originating in the sinus node?
Select one:
a. Sinus arrhythmia
b. Sinus rhythm
c. Sinus tachycardia
d. Sinus bradycardia - ✔✔Sinus arrhythmia.
✔✔Sinus arrhythmia has a pattern that often corresponds with the
Select one:
a. PR intervals.
b. Breathing pattern.
c. P-P intervals.
d. Patient's age. - ✔✔Breathing pattern.
✔✔In sinus block,
Select one:
a. The pause is a multiple of the R-R intervals.
b. There are P waves inside the pause.
c. All R-R intervals are constant.
AND ANSWERS GRADED A++
✔✔Which of the following sinus rhythms would be expected with stimulation of the
sympathetic nervous system?
Select one:
a. Sinus rhythm rate 68
b. Sinus bradycardia rate 45
c. Sinus arrhythmia rate 45-73
d. Sinus tachycardia rate 125 - ✔✔Sinus tachycardia rate 125
✔✔In which rhythm is an escape beat sometimes seen?
Select one:
a. Sinus rhythm
b. Sinus bradycardia
c. Sinus arrhythmia
d. Sinus arrest - ✔✔Sinus arrest.
✔✔Sinus rhythms all have
Select one:
a. Uniform shape P waves preceding the QRS complexes.
b. Multiple shapes of P waves preceding the QRS complexes.
c. A wavy baseline without P waves or QRS complexes.
d. Inverted P waves in lead II. - ✔✔Uniform shape P waves preceding the QRS
complexes
✔✔Atropine's mode of action is to
Select one:
a. Speed up the rate of sinus node firing and speed conduction through the AV node.
b. Speed impulse conduction through the bundle branches and AV node.
c. Slow the rate of conduction through the AV node and slow sinus node firing.
d. Speed sinus node firing and slow AV node conduction. - ✔✔Speed up the rate of
sinus node firing and speed conduction through the AV node..
✔✔Treatment for sinus tachycardia associated with a high fever would be to
Select one:
a. Give atropine.
b. Start CPR.
c. Give acetaminophen or ibuprofen to get the temperature down.
d. Give beta-blockers. - ✔✔Give acetaminophen or ibuprofen to get the temperature
down.
✔✔Thyrotoxicosis is a condition associated with which rhythm?
Select one:
a. Sinus block
, b. Sinus arrest
c. Sinus tachycardia
d. Sinus bradycardia - ✔✔Sinus tachycardia.
✔✔Sinus tachycardia's causes can include which of the following?
Select one:
a. Fever
b. Anxiety
c. Congestive heart failure
d. All of the above - ✔✔All of the above
✔✔A junctional escape beat is a beat from the
Select one:
a. Ventricle.
b. AV junction.
c. Bundle branches.
d. Sinus node. - ✔✔AV junction.
✔✔Which of the following has a heart rate less than 60?
Select one:
a. Sinus rhythm
b. Sinus bradycardia
c. Sinus tachycardia
d. Atrial tachycardia - ✔✔Sinus bradycardia
✔✔Which of the following is an irregular rhythm originating in the sinus node?
Select one:
a. Sinus arrhythmia
b. Sinus rhythm
c. Sinus tachycardia
d. Sinus bradycardia - ✔✔Sinus arrhythmia.
✔✔Sinus arrhythmia has a pattern that often corresponds with the
Select one:
a. PR intervals.
b. Breathing pattern.
c. P-P intervals.
d. Patient's age. - ✔✔Breathing pattern.
✔✔In sinus block,
Select one:
a. The pause is a multiple of the R-R intervals.
b. There are P waves inside the pause.
c. All R-R intervals are constant.
