CARDIAC DYSRHYTHMIA
COMPETENCY EXAM QUESTIONS WITH
CORRECT ANSWERS
Normal PR interval - Answer-0.12-0.20 seconds
Normal QRS duration - Answer-0.04-0.10 seconds
Normal QT interval - Answer-<0.46 seconds (2.5 large boxes)
How much time is 1 large box on a strip - Answer-0.2 sec
How much time is 1 small box on a strip - Answer-0.04 sec
6 steps for rhythm interpretation - Answer-HR
Regularity
P-wave
P-R interval
QRS
Rhythm
**Atrial kick comprises of ___ of CO - Answer-30%
Measure what interval to assess for sinus block/arrest - Answer-R-R
Interventions for afib/aflutter - Answer-AB(3)CD
-anticoagulant
-BB
-CCB
-Cordarone (Amiodarone)
-Cardioversion
-Digoxin
5 critical rhythms - Answer-ST elevation
3rd degree AVB
Vtach
Vfib
Asystole
what are some causes of QT prolongation - Answer--anti (antiemetic, antibiotic,
antidepressants, etc)
-hypo (kalemia, calcemia, magnesemia)
-massive blood transfusions
, what is the danger with QT prolongation - Answer-PVC
what QRS interval will you see with a BBB - Answer->/= 0.12
how to identify first degree AV block - Answer-prolonged PR interval (>0.2 sec)
how to identify second degree block type II - Answer-there are dropped QRS complexes
but PR marches out
how to identify second degree block type I - Answer-prolonged PR intervals (each PR
interval gets longer until a QRS complex drops)
normal SA node rate - Answer-60-100 bpm
normal AV node rate - Answer-40-60 bpm
normal purkinje fibers rate - Answer-20-40 bpm
what does QT interval represent - Answer-ventricular depolarization & repolarization
interval
right atrium receives ___ blood from ___ - Answer-unoxygenated blood from
superior/inferior vena cava
left atrium receives ___ blood from ___ - Answer-oxygenated blood from lungs
right ventricle pumps ___ blood to ___ - Answer-deoxygenated blood to lungs
left ventricle pumps ___ blood to ___ - Answer-oxygenated blood to body
what valve is in between right atrium and ventricle - Answer-tricuspid (RT)
what valve is in between left atrium and ventricle - Answer-mitral/bicuspid
systemic circulation - Answer-carries oxygenated blood to body; returns deoxy. blood to
right heart
pulmonary circulation - Answer-carries deoxygenated blood from heart to lungs for
oxygenation & returns to heart
P wave represents - Answer-atrial depolarization
QRS complex represents - Answer-ventricular depolarization & atrial reploarization
intervention for ST elevation - Answer-MONA
-morphine
COMPETENCY EXAM QUESTIONS WITH
CORRECT ANSWERS
Normal PR interval - Answer-0.12-0.20 seconds
Normal QRS duration - Answer-0.04-0.10 seconds
Normal QT interval - Answer-<0.46 seconds (2.5 large boxes)
How much time is 1 large box on a strip - Answer-0.2 sec
How much time is 1 small box on a strip - Answer-0.04 sec
6 steps for rhythm interpretation - Answer-HR
Regularity
P-wave
P-R interval
QRS
Rhythm
**Atrial kick comprises of ___ of CO - Answer-30%
Measure what interval to assess for sinus block/arrest - Answer-R-R
Interventions for afib/aflutter - Answer-AB(3)CD
-anticoagulant
-BB
-CCB
-Cordarone (Amiodarone)
-Cardioversion
-Digoxin
5 critical rhythms - Answer-ST elevation
3rd degree AVB
Vtach
Vfib
Asystole
what are some causes of QT prolongation - Answer--anti (antiemetic, antibiotic,
antidepressants, etc)
-hypo (kalemia, calcemia, magnesemia)
-massive blood transfusions
, what is the danger with QT prolongation - Answer-PVC
what QRS interval will you see with a BBB - Answer->/= 0.12
how to identify first degree AV block - Answer-prolonged PR interval (>0.2 sec)
how to identify second degree block type II - Answer-there are dropped QRS complexes
but PR marches out
how to identify second degree block type I - Answer-prolonged PR intervals (each PR
interval gets longer until a QRS complex drops)
normal SA node rate - Answer-60-100 bpm
normal AV node rate - Answer-40-60 bpm
normal purkinje fibers rate - Answer-20-40 bpm
what does QT interval represent - Answer-ventricular depolarization & repolarization
interval
right atrium receives ___ blood from ___ - Answer-unoxygenated blood from
superior/inferior vena cava
left atrium receives ___ blood from ___ - Answer-oxygenated blood from lungs
right ventricle pumps ___ blood to ___ - Answer-deoxygenated blood to lungs
left ventricle pumps ___ blood to ___ - Answer-oxygenated blood to body
what valve is in between right atrium and ventricle - Answer-tricuspid (RT)
what valve is in between left atrium and ventricle - Answer-mitral/bicuspid
systemic circulation - Answer-carries oxygenated blood to body; returns deoxy. blood to
right heart
pulmonary circulation - Answer-carries deoxygenated blood from heart to lungs for
oxygenation & returns to heart
P wave represents - Answer-atrial depolarization
QRS complex represents - Answer-ventricular depolarization & atrial reploarization
intervention for ST elevation - Answer-MONA
-morphine
