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NUR 411 Exam 1 questions well answered to pass
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NUR 411 Exam 1 questions well answered to pass
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NUR 411 Exam 1 questions wellanswered to pass
Generates an electrical impulse spontaneously and repetitively - correct answer ✔✔automaticity
Responds to electrical impulse and depolarizes - correct answer ✔✔Excitability
Sends electrical impulse from cell membrane to cell membrane - correct answer ✔✔Conductivity
Muscle cells shorten their fiber length in response to electrical stimulus - correct answer ✔✔Contractility
order of conduction through the heart - correct answer ✔✔SA AV bundle of his bundle branch purkinje
fiber
the slower the beat, the [better/worse] the block - correct answer ✔✔worse
most blocks are [tachy/brady]cardic - correct answer ✔✔brady
The SA node is what part of the heart beat? - correct answer ✔✔P wave
the AV node is what part of the heart beat? - correct answer ✔✔PR interval
atrial depolarization is what part of the heart beat? - correct answer ✔✔P wave
QRS complex is what part of the heart beat? - correct answer ✔✔ventricular depolarization
when does ventricular repolarization happen for the heart beat? - correct answer ✔✔T wave
,ECG paper
one small box ____ sec
one large box ____ sec - correct answer ✔✔0.04
0.20
how many large boxes in 6 seconds - correct answer ✔✔30
more than __ boxes between R waves is brady
less than __ boxes between R waves is tachy - correct answer ✔✔5
3
if the beat is irregular monitor it for how many minutes? - correct answer ✔✔1
normal PR interval - correct answer ✔✔.12 .20
normal QRS complex - correct answer ✔✔.04 .12
[atrial/ventricular] arrhythmias are more lethal - correct answer ✔✔ventricular (these affect cardiac
output)
number one distinguishing characteristic between a stable and unstable patient - correct answer
✔✔confusion
PAC and SVT are [atrial/ventricular] dysrhyythmias - correct answer ✔✔atrial
PAC - correct answer ✔✔premature atrial contraction
SVT - correct answer ✔✔supraventricular tachycardia
, two electrolytes you may worry about in the heart - correct answer ✔✔K Mg
alcoholic and bulimics have abnormally low __ - correct answer ✔✔Mg
Ectopic focus of atrial tissue fires an impulse before next sinus impulse is due - correct answer ✔✔PAC
self-limiting arrhythmia, remove the trigger to cure - correct answer ✔✔PAC
Rapid stimulation of atrial tissue occurs at a rate of >150 to 280 beat/min with a mean of 170 beats/min
in adults. - correct answer ✔✔SVT
rate of SVT - correct answer ✔✔150 280
treatment for SVT - correct answer ✔✔vagal (first intervention if it does not resolve spontaneously)
a for a
anti-arrhythmic drug - correct answer ✔✔amiodarone
treatment of choice for recurrent SVT - correct answer ✔✔radiofrequency ablation
drug to administer if vagal doesn't work for SVT - correct answer ✔✔adenosine (cardizem, amiodarone)
when this drug is administered the patient is being treated for SVT (stops patient's heart) - correct
answer ✔✔adenosine
what class is cardizem - correct answer ✔✔calcium channel blocker
deadman's dose of amiodarone - correct answer ✔✔300 (mg)
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