Questions and CORRECT Answers
Name the three pacemakers of the heart and their rate: - CORRECT ANSWER - SA node
(60-100bpm)
AV node (40-60bmp)
Bundle branches (20-40bpm)
Absolute refractory period - CORRECT ANSWER - Cardiac cells will not respond to
further stimulation
Myocardial cells will not contract
Relative refractory period - CORRECT ANSWER - Vulnerable period (T-wave)
Cardiac cells can be stimulated to contract
Peaked p wave - CORRECT ANSWER -
Notched p wave - CORRECT ANSWER -
Inverted p wave - CORRECT ANSWER -
ST depression - CORRECT ANSWER - MI ischemia
ST elevation - CORRECT ANSWER - Active STEMI
Lead II - CORRECT ANSWER - Negative to Positive deflection