, 1. normal heart rhythm originating in the sinoatrial node
sinus with a rate in patients at rest of 60 to 100 beats
rhythm per minute
2. Sinus Appearance is ALMOST NORMAL:
Arrhyth- mia Respiratory - Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
3. Sinus <60
Bradycar- dia normal sinus rhythm
4. Sinus >100 (100-150)
Tachycar- dia normal sinus rhythm
5. Premature Atri- Heart Rate: Depends on underlying rhythm
al Contraction Regularity: Interrupts the regularity of
(PAC) underlying rhythm P-Wave: can be flattened,
notched, or unusual. May be hidden within the T
wave
PRI: measures between .12-.20 seconds and can
be pro- longed; can be different from other
complexes
QRS: <.12 seconds
6. Sinus Ar-
rest/Pause
- SA node doesn't fire
- notice absence of P-wave for a complete cycle (a
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