ECG CPO EXAM 2025/2026 ACTUAL COMPLETE REAL
EXAM QUESTIONS AND ACCURATE ANSWERS
(VERIFIED ANSWERS) |ALREADY PASSED
/2025 BRAND NEW EXAM!!
How do you treat Long QT? - ANSWER-In an emergency: IV Mg,
Defib, Pacing, Meds that increase HR
Long term: monitor the interval, discontinue drugs that
increase QT interval if it increases over 0.5 sec
What are the number intervals used in the 300 method? -
ANSWER-300, 150,
100, 75, 60, 50, 43,
37
How do you distinguish a wandering pacemaker? - ANSWER-
There will be a P
wave before every QRS and a QRS after P, but the PR interval
will vary, and
the morphology of the P waves will vary (all
look different)
,What are the causes of a wandering pacemaker? - ANSWER--
May be normal
-More frequent in recent cardiac
disease, MI, HF
-Long term cardiac disease, CAD, cardiac
ischemia
-
Digoxin
What is the cause of sick sinus syndrome? - ANSWER-
Dysfunction of the SA
node
What is the treatment for sick sinus syndrome? - ANSWER-
-Cardiac meds
temporarily
-Insert permanent
pacemaker
What is the cause of tachy-brady syndrome? - ANSWER--SA
node fibrosis
-AV nodal artery
disease
-
Other
,What is the treatment for tachy-brady syndrome? - ANSWER--
Insert permanent
pacemaker
-Cardiac meds that depress the
fast HR
-Ablation may treat rapid A fib
feature
What is the drug therapy regimen in a cardiac arrest? -
ANSWER-Epi IV/IO, 1
mg Q3-
5mins
Amiodarone IV/IO. First dose 300mg bolus. Second
dose 150mg
How do you distinguish PVC's? - ANSWER--Wide and
bizarre QRS
-T wave will have an opposite deflection
of the QRS
What are the causes of PVC's? - ANSWER--Catecholamine
release (fear, exercise, anxiety, caffeine, alcohol, tobacco)
-CNS stimulants (dopamine, epi, aminophylline, thyroxine,
amphetamines, cocaine) -Cardiac disease
, -Electrolyte imbalance
-Hypoxia (COPD)
How do you treat a PVC? - ANSWER--Consider treatment if they
are increasing
in frequency or severity (ie associated with MI, couplets,
bigeminy, trigeminy,
multifocal, more than 6 in a
minute)
-Treat underlying
cause
-Meds: Amiodarone, Mg,
Lidocaine
What are the causes of a ventricular escape rhythm? -
ANSWER--MI, myocardial ischemia -Pacemaker failure
-Metabolic imbalance
-Cardiac meds
How do you treat a ventricular escape rhythm? - ANSWER--
Treat cause
-Maintain ventricular rate to produce adequate BP
-Pacing
-Atropine not given because it acts on the atria's and not
ventricles (won't work)
EXAM QUESTIONS AND ACCURATE ANSWERS
(VERIFIED ANSWERS) |ALREADY PASSED
/2025 BRAND NEW EXAM!!
How do you treat Long QT? - ANSWER-In an emergency: IV Mg,
Defib, Pacing, Meds that increase HR
Long term: monitor the interval, discontinue drugs that
increase QT interval if it increases over 0.5 sec
What are the number intervals used in the 300 method? -
ANSWER-300, 150,
100, 75, 60, 50, 43,
37
How do you distinguish a wandering pacemaker? - ANSWER-
There will be a P
wave before every QRS and a QRS after P, but the PR interval
will vary, and
the morphology of the P waves will vary (all
look different)
,What are the causes of a wandering pacemaker? - ANSWER--
May be normal
-More frequent in recent cardiac
disease, MI, HF
-Long term cardiac disease, CAD, cardiac
ischemia
-
Digoxin
What is the cause of sick sinus syndrome? - ANSWER-
Dysfunction of the SA
node
What is the treatment for sick sinus syndrome? - ANSWER-
-Cardiac meds
temporarily
-Insert permanent
pacemaker
What is the cause of tachy-brady syndrome? - ANSWER--SA
node fibrosis
-AV nodal artery
disease
-
Other
,What is the treatment for tachy-brady syndrome? - ANSWER--
Insert permanent
pacemaker
-Cardiac meds that depress the
fast HR
-Ablation may treat rapid A fib
feature
What is the drug therapy regimen in a cardiac arrest? -
ANSWER-Epi IV/IO, 1
mg Q3-
5mins
Amiodarone IV/IO. First dose 300mg bolus. Second
dose 150mg
How do you distinguish PVC's? - ANSWER--Wide and
bizarre QRS
-T wave will have an opposite deflection
of the QRS
What are the causes of PVC's? - ANSWER--Catecholamine
release (fear, exercise, anxiety, caffeine, alcohol, tobacco)
-CNS stimulants (dopamine, epi, aminophylline, thyroxine,
amphetamines, cocaine) -Cardiac disease
, -Electrolyte imbalance
-Hypoxia (COPD)
How do you treat a PVC? - ANSWER--Consider treatment if they
are increasing
in frequency or severity (ie associated with MI, couplets,
bigeminy, trigeminy,
multifocal, more than 6 in a
minute)
-Treat underlying
cause
-Meds: Amiodarone, Mg,
Lidocaine
What are the causes of a ventricular escape rhythm? -
ANSWER--MI, myocardial ischemia -Pacemaker failure
-Metabolic imbalance
-Cardiac meds
How do you treat a ventricular escape rhythm? - ANSWER--
Treat cause
-Maintain ventricular rate to produce adequate BP
-Pacing
-Atropine not given because it acts on the atria's and not
ventricles (won't work)
