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Arrhythmias
Question | Answer |
---|---|
What can cause an increased heart rate? | SA node as pacemaker, Cocaine, anxiety, caffeine, smoking, pain, shock, heart failure, fever, exercise, respiratory distress, dehydration |
Clinical symptoms of sinus tachycardia? | Rapid, regular on auscultation, usually relatively asymptomatic, occasional palpitations, dyspnea, increases work load of the heart |
Treatment for sinus tachycardia? | Treat the cause |
What can cause decreased heart rate? | SA node as pacemaker, beta blockers, ca+ channel blockers, digoxin, hypothermia, valsalva maneuver, athletes (exercise a lot), narcotic overdose, hypothyroidism (myxedema coma) |
What are the clinical features of sinus bradycardia? | slow, regular apical pulse |
What are the symptoms of sinus bradycardia? | symptoms will be present only if cardiac output is decreased- fatigue, SOB, hypotension, dizziness, syncope |