How many seconds are the squares worth on ECG paper? small square: .04
large square: .20
5 large squares: 1.0
1 strip: 6.0
Questions to ask when reading ECG 1. is there a P for every QRS?
2. does it walk out?
3. what are the intervals?
4. what is the rate/rhythm?
How do you treat dysrhythmias? based upon symptoms
no symptoms=no treatment
Sinus Bradycardia <60bpm
-walks out
-SA node in control
-causes: hypoxia, hypothermia, sleep, athletes, meds
, Telemetry (EXAM 1) Questions And Answers
-symptoms: syncope, chest pain, hypotension, SOB, diaphoresis
-treatment: atropine, underlying cause
Sinus Tachycardia >100bpm
-walks out
-SA node in control
-causes: fever, anemia, hypotension, pulmonary embolism, MI
-symptoms: dizzy, syncope, SOB, diaphoresis, anxiety, palps
-treatment: underlying cause, vagal maneuvers, meds
Atrial fibrillation (AFIB) -no identifiable P wave
-AV node in control
-does not walk out
-causes: cardiomyopathy, pericarditis, HTN, CAD, cardiac surgery
-symptoms: palps, fatigue, SOB, dizziness, chest pain
-treatment: meds, cardioversion (eval for clots 1st), anticoagulants
Atrial flutter -Sawtooth pattern