HOAG ECG COMPREHENSIVE TEST PAPER ACCURATE QUESTIONS WITH COMPLETE SOLUTION

HOAG ECG COMPREHENSIVE TEST PAPER
ACCURATE QUESTIONS WITH COMPLETE
SOLUTION

●● Normal PR interval
Answer: 0.12-0.20 seconds


●● Normal QT interval
Answer: 0.36-0.44


●● one small box
Answer: 0.04 seconds


●● one large box
Answer: 0.20 seconds


●● Six second tracing method
Answer: Count number of R waves that appear within that 6 second
period and multiply it by 10


●● The 300 method

, Answer: use the number 300 divided by the number of big boxes
between R waves


●● The 1500 method
Answer: Count number of small squares between two consecutive R-
waves and divide that number by 1500, it is the most accurate method of
obtaining the heart rate but can only be used on regular rhythms.


●● P wave
Answer: atrial depolarization (contraction)


●● QRS wave complex
Answer: ventricular depolarization


●● Q wave
Answer: first negative deflection after P wave


●● R wave
Answer: first positive deflection after P wave


●● S wave
Answer: first negative deflection after R wave