NURS 440 EXAM ( Tammie Davis / EKG
Dysrhythmias / Pacemakers / ICD / Conduction
EKG Intro) – Questions & Solutions
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Practice questions for this set
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Retrograde junctional P
Rate 101-180
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1 sinus brady hallmarks 2 sinus block hallamarks
3 analyzing the ST segment 4 hallmarks junctional tachycardia
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Terms in this set (197)
,sinus brady hallmarks like sinus rhythm but less than 60 beats per min
SA node fires at slower rate
meds that cause sinus brady -Digitalis
-B-blockers: atenolol, metoprolol
-Ca++ channel blockers: verapamil, diltiazem
-amiodarone
causes of sinus brady Vagal stimulation-cough
strain
sudden cold exposure
carotid sinus pressure
SA node damage post MI
cardiac surgery
what electrolyte/ body imbalances Hypoxia
can cause sinus brady Hypothermia
Hypokalemia
Hyperkalemia
Hypothyroidism
,treatment of sinus brady Only if symptomatic-s/s decreased CO
D/C meds causing bradycardia
Atropine if symptomatic
Pacer-external temp/perm
sinus tach hallmarks Like SR except rate > 100
SA node fires at faster rate
Usually in response to body needs-compensation
causes of sinus tach Response in healthy to- pain, exercise, anxiety,
caffeine, smoking, MI, meds, anemia, hypoxia,
hyperthyroidism
signs of sinus tach palpitations
racing/ pounding in chest
chest pain
treatment for sinus tach treat underlying cause
meds to slow hr
, sinus arrhythmia hallmarks Like SR except rhythm is irregular
SA node fires irregularly
causes of sinus arrhythmia Normal variations with respirations r/t changes in
intrathoracic pressure
Usually children, young adults < 30 years
treatment of sinus arrhythmia no clinical significance and no treatment
sinus block hallamarks -Pause; length of pause is multiple of R-R; regular;
NSR resumes on time
-Some impulses from SA node not conducted,
blocked, do not reach atria
cause of sinus block ↑vagal tone; carotid sinus sensitivity
MI, CAD, HF, Myocarditis, meds
signs of sinus block lower BP
SOB
syncope with increased pauses
Dysrhythmias / Pacemakers / ICD / Conduction
EKG Intro) – Questions & Solutions
Save Groups
Practice questions for this set
Learn 1 /7 Study using Learn
Retrograde junctional P
Rate 101-180
Choose an answer
1 sinus brady hallmarks 2 sinus block hallamarks
3 analyzing the ST segment 4 hallmarks junctional tachycardia
Don't know?
Terms in this set (197)
,sinus brady hallmarks like sinus rhythm but less than 60 beats per min
SA node fires at slower rate
meds that cause sinus brady -Digitalis
-B-blockers: atenolol, metoprolol
-Ca++ channel blockers: verapamil, diltiazem
-amiodarone
causes of sinus brady Vagal stimulation-cough
strain
sudden cold exposure
carotid sinus pressure
SA node damage post MI
cardiac surgery
what electrolyte/ body imbalances Hypoxia
can cause sinus brady Hypothermia
Hypokalemia
Hyperkalemia
Hypothyroidism
,treatment of sinus brady Only if symptomatic-s/s decreased CO
D/C meds causing bradycardia
Atropine if symptomatic
Pacer-external temp/perm
sinus tach hallmarks Like SR except rate > 100
SA node fires at faster rate
Usually in response to body needs-compensation
causes of sinus tach Response in healthy to- pain, exercise, anxiety,
caffeine, smoking, MI, meds, anemia, hypoxia,
hyperthyroidism
signs of sinus tach palpitations
racing/ pounding in chest
chest pain
treatment for sinus tach treat underlying cause
meds to slow hr
, sinus arrhythmia hallmarks Like SR except rhythm is irregular
SA node fires irregularly
causes of sinus arrhythmia Normal variations with respirations r/t changes in
intrathoracic pressure
Usually children, young adults < 30 years
treatment of sinus arrhythmia no clinical significance and no treatment
sinus block hallamarks -Pause; length of pause is multiple of R-R; regular;
NSR resumes on time
-Some impulses from SA node not conducted,
blocked, do not reach atria
cause of sinus block ↑vagal tone; carotid sinus sensitivity
MI, CAD, HF, Myocarditis, meds
signs of sinus block lower BP
SOB
syncope with increased pauses
