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Cardiac Dysrhythmias Key points from lecture Questions and Answers 2024
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Cardiac Dysrhythmias Key points from lecture
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Cardiac Dysrhythmias Key points fromlecture
1)Syncopal episodes- - answer-Vasovagal syncope;
A sudden drop in heart rate and blood pressure leading to fainting, often in reaction to a
stressful trigger (Bearing down to poop may stimulate this, due to parasympathetic
nervous response)
2)Av node is in the _______.
A) Right atrium
B) Left Atrium
C) Left Ventricle
D) Right Ventricle - answerA) Right Atrium (Comes out of the interatrial septum near the
coronary sinus)
3) A 12 Lead ECG is one single view of the heart at a point in time: True or false -
answerFalse (An 12 Lead ECG is multiple portions of the heart electrical activity)
4) A rhythm strip 1mm square is ____ seconds. - answer0.04
5) 0.06-0.12 is the normal duration of the QRS complex: True or false? - answerTrue
6)Wide complex QRS indicates:
A) A Block
B)A Lazy heart
C) Tachycardia
D)Bradycardia - answerA) A block (there is damage or trouble conducting)
9)0.12-0.20 seconds is the normal ___ Interval - answerPR
10) Paroxysmal: - answerComes and goes
11) Dysrhythmias are a result of what? - answerEither an alteration of the formation of
the impulse through the SA node to the rest of the myocardium or irritability of the
myocardium cells
12) Dobutamine, dopamine, epinephrine, midodrine, phenylephrine, fenoldopam are
what kind of drug?
A) Vasopressors
B) Antihypertensive
C) Allergy medication
, D) Beta Blockers - answerA)Vasopressors (Antihypotensive, Vasoactive adrengenics)
13) The nurse caring for a patient who is receiving beta1 agonist drug therapy needs to
be aware that these drugs cause which effect?
a) Increased cardiac contractility
b) Decreased heart rate
c) Bronchoconstriction
d) Increased GI tract motility - answera) Increased cardiac contractility
14) What is the "widowmaker"?
A) Digoxin toxicity
B) Super Tachycardia
C) Left anterior descending and left main artery
D) Right anterior descending and right main artery - answerC) Left anterior descending
and left artery (is a branch of the left coronary artery)
15)Medical management of Sinus bradycardia would include which drugs?
A) Atropine, dopamine, epinephrine
B) Albuterol (INH), Dopamine, Epinephrine
C) Lithium, midodrine, phenylephrine
D) A pacemaker - answerA) Atropine, dopamine, epinephrine
16)F0or a patient receiving a vasoactive drug such as intravenous dopamine, which
action by the nurse is most appropriate?
a) Monitor the gravity drip infusion closely, and adjust as needed.
b) Assess the patient's cardiac function by checking the radial pulse.
c) Assess the intravenous site hourly for possible infiltration.
d) Administer the drug by intravenous boluses according to the patient's blood pressure.
- answerb) Assess the patient's cardiac function by checking the radial pulse.
17) A patient is receiving dobutamine for shock and is complaining of feeling more
"skipping beats" than yesterday. What will the nurse do next?
a) Monitor for other signs of a therapeutic response to the drug.
b) Titrate the drug to a higher dose to reduce the palpitations.
c) Discontinue the dobutamine immediately.
d) Assess the patient's vital signs and cardiac rhythm. - answerd) Assess the patient's
vital signs and cardiac rhythm.
18) When a drug is characterized as having a negative chronotropic effect, the nurse
knows to expect which effect?
a) Reduced blood pressure
b) Decreased heart rate
c) Decreased ectopic beats
d) Increased force of cardiac contractions - answerb) Decreased heart rate
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