Rhythm strip interpretation and sinus rhythms Flashcards
5 steps to interpretation
- rhythm
- rate
- P wave configuration
- PR interval
- QRS duration measurement
What is the normal PR interval?
0.12 - 0.20 second
What is the range for a normal QRS?
0.06 - 0.10 second
Name 4 important QRS questions you should be asking yourself.
- Are all QRS equal of length?
- In normal range?
- Do they look alike?
- Associated with ectopic beat?
If patient has returned to sinus rhythm from another dysrhythmia, what should be your next move?
check cardiac output
Define normal cardiac output
The heart is beating adequately, pumping blood to the bodies vital organs
What is IST?
inappropriate sinus tachycardia
What are the criterias for sinus dysrhythmia?
- Irregular Heart Rate
- P, PR and QRS are the same as in normal rhythm
What causes dysrhythmia?
R-R will progressively widen following the patient’s breathing pattern
What is Sinus Arrest, describe the EKG findings?
- SA node stops firing
- interval between two P and two R waves is irregular
What is asystole?
Flatline or Ventricular Standstill