ECG EXAM NYU LANGONE UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

ECG EXAM NYU LANGONE UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS

Question:
1. you cant have a ______ without electricty
Answer:
contraction

Question:
2. ______ is the cells ability to spontaneously generate impluses
Answer:
automaticity

Question:
3. ________ Cell ability to respond to an impulse
Answer:
excitability

Question:
4. ________ Cells ability to transmit impulse
Answer:
Conductivity

Question:
5. _____ cells contract
Answer:
myocardial

Question:
6. step 1: the p wave is caused by _____ ______ initiated by the SA node
Answer:
atrial depolarization

Question:
7. step 2: with atrial depolarization complete, the impulse is delayed at the ___ _____
Answer:
AV node

Question:
8. step 3: _____ _____ begins at apex causing the QRS complex. atrial repolarization occurs
Answer:
ventricular depolarization

Question:
9. step 4: ____ ____ is complete

,Answer:
ventricular depolarization

Question:
10. step 5: the T wave is caused by ______ ______
Answer:
ventricular repolarization

Question:
11. step 6: _____ _____ is complete
Answer:
ventricular repolarization

Question:
12. implulse rate SA node :__ to ___ AV node: __ to ___ ventricles: ___ to ____
Answer:
60-100 40-60 20-40

Question:
13. what is the pathway of the electrical conduction system?
Answer:
SA node (pacemaker) to AV node to AV bundle (bundle of his) to right and left bundle branches to
purkinje fibers

Question:
14. What is the refractory period?
Answer:
a period of inactivity after a neuron has fired

Question:
15. during a refractory period (absolute or relative) if there is an implulse this will happen _____ sending
your patient to _______ _______
Answer:
R on T phenomenon, fatal dysrhythmias

Question:
16. Normal PR interval
Answer:
0.12-0.20 seconds (3-5 small boxes)

Question:
17. Normal QRS complex
Answer:
less than 0.12 seconds

Question:
18. NSR regular 60-100 p wave normal PR int: 0.12-0.20 secs QRS: < 0.12 secs

, Answer:




Question:
19. Sinus tachy regular 101-160 p wave normal PR int: 0.12-0.20 secs QRS: < 0.12 secs
Answer:




Question:
20. Normal sympathetic tone, fever, exercise, hypotension, PE, MI, stress, anxiety are the causes for ____
____
Answer:
sinus tachy

Question:
21. how do you treat sinus tachy?
Answer:
treat underlying cause (pain, fever, etc) and increased o2 requirement is a warning sign

Question:
22. sinus brady regular <60 p wave normal PR int: 0.12-0.20 secs QRS: <0.12 secs
Answer:




Question:
23. Increased vagal tone, inferior wall MI, hypothyroidism, drugs (beta blockers, digoxin, morphine,
hypothyroidism) can be a normal finding are causes of _____ _____
Answer:
sinus brady

Question:
24. how do you treat sinus brady?
Answer:
only if symptomatic-stove meds and give epi or atropine

Question:
25. sinus arrhythmia irregular 60-100 p wave normal PR int: 0.12-0.20 QRS int: <0.12 sec