Answers6
SR & Treatment - ANSWERS-rate= 60 to 100
rhythm= regular
PR= 0.12-0.20 sec
QRS = ≤ .10 sec
ST: rate >100 treat the cause whether its hypertension, dehydration, fever, etc.
SB: rate <60 if its symptomatic we will give atropine or do TCP
*Atropine may be contraindicated for inferior wall MI
Sinus Arrhythmia - ANSWERS-Rate= 60 to 100
*Rhythm is irregular*
PRI= .12-.20 sec
QRS= ≤.10
associates with phases of respiration
* inc. HR = inspiration
* dec. HR = expiration
Premature Atrial Contraction (PAC) & treatment - ANSWERS-Heart Rate: Depends on underlying
rhythm
Rhythm: depends on underlying rhythm with early beat from atria
Abnormality is seen on P-Wave: premature; can be abnormal in size, shape or direction
PRI: .12-.20 secs and can be prolonged
QRS: ≤.10; pause follows early beat
, *biggest giveaway is the pause*
Treatment: infrequent = no treatment
Frequent= search for cause and eliminate
Atrial Tachycardia/SVT & Treatment - ANSWERS-rhythm: regular
rate: 140-250
PR: not measurable
QRS= <.10
p waves: abnormal, usually hidden in preceding T wave
Treatment: hemodynamically stable: Adenosine
Hemodynamically unstable= cardioversion
*SVT is an umbrella term for ALL tachycardia rhythms originating above the ventricles*
Atrial Fibrillation & Treatment - ANSWERS-rhythm: irregular
rate: atrial-350 to 500, not measurable ventricular rate-varies w/ # of impulses
PR: absent
QRS:≤ .10 seconds
Stable: Pharmacological (Ca2+ channel blockers, beta blockers, digoxin)
Unstable: Cardioversion !!!
A-flutter & Treatment - ANSWERS-rhythm: regular or irregular
rate: atrial 250 to 400 ventricular: varies with # of impulses
PR: not measurable
QRS: ≤0.10 seconds