DETAILED SOLUTIONS RATED 100% COMPLETE
1. NSR hemodynamically stable with optimal co
Rate: 60-100
Rhythm:
Regular P
waves normal
1:1
conduction
QRS normal
ST and T waves normal
2. Sinus Arrhythmia no hemodynamic significance. p-p interval varies by more than 10%.
Rate: 60-100, speed slows with
respirations Rhythm: Irregular
P waves
normal 1:1
conduction
QRS normal
ST and T waves normal
3. Sinus
arrhythmia Asx: nothing
treatment sx: find cause and treat (e.g. digitalis toxicity, MI)
4. Sinus Can compromise CO.
Bradycar- dia
Normal in athletes and during
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,NCAL KAISER EKG EXAM QUESTIONS &
DETAILED SOLUTIONS RATED 100% COMPLETE
s except rate <60
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, NCAL KAISER EKG EXAM QUESTIONS &
DETAILED SOLUTIONS RATED 100% COMPLETE
5. sinus bradycardia primary causes: hypothermia, increased ICP, vagal stimulation, MI
(inferior and
causes and symp- posterior)
toms secondary causes: BB's, digitalis, CCB
Sx: syncope, dizzy, hypotension, angina. ectopic beats
6. sinus brady treat- only if symptomatic: 0.5mg atropine IV, pacemaker if unsuccessful, hold
drugs that
ment decrease HR
7. Sinus CO may be compromised due to inadequate ventricular filling
Tachycar- dia
Rate: 100-150 bpm
Rhythm: regular
waves normal and alike PR
interval normal
QRS normal
ST and T waves normal (unless rate is very fast: P&T waves fuse and can become
distorted)
8. sinus tachy
caus-
increased metabolic demands causes: anxiety, stress, fever, exercise, pain
es and symptoms
Stimulant causes: epinephrine, aminophylline, albuterol
decreased blood flow causes: shock, CHF,
hemorrhage Sx: palpitations, dizzy
9. what are the that are consid- ered sinus node disease?
three rhythms
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