answers already passed 2026/2027
P wave - correct answer atrial depolarization
- do not exceed 2.5mm in amplitude
- usually <0.12 seconds wide
QRS - correct answer ventricular depolarization and atrial repolarization
- should less than 0.12 seconds, even if no Q wave is present
T wave - correct answer ventricular repolarization--> ventricles relax
1mm= - correct answer 0.04 seconds (small square)
5mm= - correct answer 0.2 seconds (big square)
Normal paper speed - correct answer 25 mm/sec
Standard calibration - correct answer 10mm/mV
How is voltage measured? - correct answer vertically in millimeters
How is time measured? - correct answer horizontally in seconds
Biphasic waveform - correct answer A wave of electrical activity moving at right angles to a positive
electrode