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
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)
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
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
This sets the rate of the heart at 20-40. The tertiary pacemaker if the other two fail.
Purkinjie Fibers
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
main treatment- monitor and treat underlying cause
PAC
preventricular atrial contractions