rate of SA node - ANSWER 60-100
Rate of AV node - ANSWER 40-60
rate of ventricles/ perkinje - ANSWER 20-40
each small box on strip represents - ANSWER 0.04 seconds
each larger box on strip represents - ANSWER 0.20 seconds
u wave can be caused by - ANSWER hypokalemia or digitalis toxicity
Long PR interval can mean - ANSWER heart block
V1 is placed - ANSWER on 4th inrercostal space to right of sternum
v2 is places - ANSWER on 4th intercostal space to left of sternum
V3 is placed - ANSWER between v2 and v4
v4 is placed - ANSWER on the fifth intercostal space in the midclavicular line
v5 is placed - ANSWER between v4 and v6
v6 is placed in - ANSWER the fifth intercostal space in midaxillary line
, Sinus arrhythmia is - ANSWER normal rate but speeds and slows with respirations, rhythm is irregular. p-
p varies by more than 10%
regularly irregular rhythm - ANSWER sinus arrhythmia
txt for bradycardia - ANSWER is symptomatic, atropine 0.5mg. if unsuccessful, pacemaker
sinus pause - ANSWER one or two beats arent formed
sinus arrest - ANSWER 3 or more beats are not formed
sinoatrial exit block - ANSWER SA node gernerates an impulse but its blocked before being transmitted
hence dropped beats. underlying rhythm is maintained
sick sinus syndrome - ANSWER sinus bradycardia (heart rate < 40 bpm), sinus pauses (sudden pauses of
the sinus node shorter than 2-3 seconds), and sinus arrest (sudden pauses of the sinus node longer than
2-3 seconds).
sick sinus syndrome txt - ANSWER pacemaker, atropine and epinephrine
atrial ectopic beat - ANSWER PAC
PAC txt - ANSWER rarely treated, observe and document frequency and pt condition
What drug can control/ convert rhythm - ANSWER amiodarone
Atrial flutter txt - ANSWER beta blockers, diltiazem, verapimil, digoxin
amiodorone to control rhythym
anticoag
IF SYMPTOMATIC, SYNCHRONIZED CARDIOVERSION