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100

This is caused from fever, anemia, anxiety, it has a rate over 100BPM, can lead to decreased perfusion. treat with beta blocker, verapamil or ditalizem 

Sinus Tachycardia 

tx- treat underlying cause meds, perfusion, address anxiety

100
  • Appearance: PR interval gets longer, longer, longer… then a QRS is dropped.

  • Why it’s important: Often benign, but shows AV node dysfunction; may cause bradycardia or dizziness.

  • Treatment: Usually just monitor; treat if symptomatic (atropine, pacing if severe).

Second-Degree AV Block – Type I (Wenckebach / Mobitz I)

200

this has a rate of 60 bpm or less, normal QRS and PR interval. can be caused from metoprolol, digoxin, baring down during a BM 

We should assess perfusion, treat the underlying cause, use atropine, and increase IV fluids if needed. Worse case pacing might be needed

Sinus Bradycardia

300

This has irregular P waves and Q waves

can be over 100BPM or controlled 

can be chronic or paroxysmal 

reduces atrial kick by 25-30%

main complication is thrombus 

tx- anticoagulation, assess perfusion, amiodarone, CCB (verapamil and ditalazem), beta blockers and digitalis 

a fib 

pt must have anticoagulation before cardioversion if this is needed

400

This sets the rate of the heart at 20-40. The tertiary pacemaker if the other two fail. 

Purkinjie Fibers 

500

this has an atrial rate of 250-350 BPM, but usually a normal ventricular rate. 

The AV node will reduce the HR and choose which impulses have a ventricular contraction 

tx- anticoagulation, rate control, cardioversion 

A flutter 

500
This usually asymptomatic caused from caffeine, nicotine, excessive alc intake, electrolytes, or stress. It is an extra P wave (atrial depolarization) pt might say they have palpitations. if occur frequently this can lead to other dysarrythmias 

main treatment- monitor and treat underlying cause 

PAC

preventricular atrial contractions