RELIAS DYSRHYTHMIA BASIC A ACTUAL
TEST FULL QUESTIONS AND CORRECT
ANSWERS EXAMPREP STUDY SHEET
●● Cardiac rhythm should be reviewed on admission and Q ____ by
telemtry certified RN.
Answer: every 4 hours
●● Batteries are to be changed every _____. And ECG electrodes should
eb changed ______.
Answer: 24 hours btw 8 pm -10 pm; minimum of every 24 hours btw 8
pm - 10 pm
●● When should a patient travel with a nurse and monitor?
Answer: - going to MRI
- post Cardiac/Cath/EP procedure
- Post Cardiac Arrest
- Post Cardiac Surgery
- Chest pain/Positive Troponin/Nitroglycerin infusion
- New-onset arrhythmia present
●● EKGs can tell us about ______.
, Answer: electrical function (rhythm/conduction distrubances)
●● Summarize the sodium-pump chemical basis of impulse formation?
Answer: 1. Polarization: The cell is negative on the inside (with K on the
inside) and positive externally (Na on the outside). This is the resting
state of the cell.
2. Depolarization: Stimuli open voltage-gated sodium channels, letting
Na flood inward, and the inside of the cell is briefly positive. Heart
muscle contracts to pump blood OUT (ex. P wave from atria and QRS
wave from ventricles)
3. Repolarization: Potassium channels open to let K+ out, restoring
internal negativity. Heart muscle relaxes so it can fill up with blood
again (ex. ST segment). This is the recovery period.
●● Summarize the electrical conduction system through the heart
Answer: 1. SA Node: Pacemaker of the heart, in the right atrium, 60-100
beats
2. AV Node: Gatekeeper of the heart, responsible for "holding" impulses
until the ventricles are able to receive them, 40-60 beats
3. Bundle of His
4. Right and Left Bundle Branches
5. Purkinje Fibers: ventricles, 20-40 beats
●● Summarize the anatomy of the heart
TEST FULL QUESTIONS AND CORRECT
ANSWERS EXAMPREP STUDY SHEET
●● Cardiac rhythm should be reviewed on admission and Q ____ by
telemtry certified RN.
Answer: every 4 hours
●● Batteries are to be changed every _____. And ECG electrodes should
eb changed ______.
Answer: 24 hours btw 8 pm -10 pm; minimum of every 24 hours btw 8
pm - 10 pm
●● When should a patient travel with a nurse and monitor?
Answer: - going to MRI
- post Cardiac/Cath/EP procedure
- Post Cardiac Arrest
- Post Cardiac Surgery
- Chest pain/Positive Troponin/Nitroglycerin infusion
- New-onset arrhythmia present
●● EKGs can tell us about ______.
, Answer: electrical function (rhythm/conduction distrubances)
●● Summarize the sodium-pump chemical basis of impulse formation?
Answer: 1. Polarization: The cell is negative on the inside (with K on the
inside) and positive externally (Na on the outside). This is the resting
state of the cell.
2. Depolarization: Stimuli open voltage-gated sodium channels, letting
Na flood inward, and the inside of the cell is briefly positive. Heart
muscle contracts to pump blood OUT (ex. P wave from atria and QRS
wave from ventricles)
3. Repolarization: Potassium channels open to let K+ out, restoring
internal negativity. Heart muscle relaxes so it can fill up with blood
again (ex. ST segment). This is the recovery period.
●● Summarize the electrical conduction system through the heart
Answer: 1. SA Node: Pacemaker of the heart, in the right atrium, 60-100
beats
2. AV Node: Gatekeeper of the heart, responsible for "holding" impulses
until the ventricles are able to receive them, 40-60 beats
3. Bundle of His
4. Right and Left Bundle Branches
5. Purkinje Fibers: ventricles, 20-40 beats
●● Summarize the anatomy of the heart
