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AACN Test Questions and answers
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AACN Test Questions and answers
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Solution 2024/2025Pepper
AACN Test
Endocardium ANS✔✔ inner layer of the heart
Myocardium ANS✔✔ thick, middle layer of the heart
Epicardium ANS✔✔ outer surface of the heart muscle
RCA ANS✔✔ extends to the back of the heart and perfuses the posterior of the heart
ECG prep ANS✔✔ alcohol before skin prep
Time it takes the paper to come out of the EKG machine? ANS✔✔ 25 mm/s
Vertical axis ANS✔✔ voltage--small box = 0.1 mv
Horizontal axis ANS✔✔ time--small box = 0.4 sec
, Solution 2024/2025
Pepper
How often are tick marks? ANS✔✔ every 3 seconds
Isoelectric line ANS✔✔ electrical charges in the heart are equal
5 lead ANS✔✔ smoke over fire, clouds over grass, brown in the middle
QT prolongation ANS✔✔ - can cause torsades
- can be affected by drugs (antibiotics, Antidysrhythmic , antipsychotic drugs)
Atrial pacemaker fires... ANS✔✔ before the P wave
Ventricular pacemaker fires... ANS✔✔ before the QRS complex
Threshold ANS✔✔ the lowest amount of energy needed to produce a "capture"
Failure to pace ANS✔✔ no pacemaker activity, it is not firing. This could be a sensitivity problem or a mechanical issue
Failure to capture ANS✔✔ the pacemaker is firing but no P wave or QRS complex follows the pacer spike. The impulse is
not strong enough to depolarize the heart (increasing the mA will troubleshoot this problem)
Failure to sense ANS✔✔ If the pacer spike is in the T wave, it is failure to sense
Over-sensing ANS✔✔ - the pacemaker is too sensitive
- ex. pt is coughing and the pace maker thinks it's the pt's HR
- to decrease the sensitivity you must INCREASE the mV
too sensistive ANS✔✔ INCREASE the mV
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