AACN test
Endocardium - Answers -inner layer of the heart
Myocardium - Answers -thick, middle layer of the heart
Epicardium - Answers -outer surface of the heart muscle
RCA - Answers -extends to the back of the heart and perfuses the posterior of the heart
ECG prep - Answers -alcohol before skin prep
Time it takes the paper to come out of the EKG machine? - Answers -25 mm/s
Vertical axis - Answers -voltage--small box = 0.1 mv
Horizontal axis - Answers -time--small box = 0.4 sec
How often are tick marks? - Answers -every 3 seconds
Isoelectric line - Answers -electrical charges in the heart are equal
5 lead - Answers -smoke over fire, clouds over grass, brown in the middle
QT prolongation - Answers -- can cause torsades
- can be affected by drugs (antibiotics, Antidysrhythmic , antipsychotic drugs)
Atrial pacemaker fires... - Answers -before the P wave
Ventricular pacemaker fires... - Answers -before the QRS complex
Threshold - Answers -the lowest amount of energy needed to produce a "capture"
Failure to pace - Answers -no pacemaker activity, it is not firing. This could be a
sensitivity problem or a mechanical issue
Failure to capture - Answers -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 - Answers -If the pacer spike is in the T wave, it is failure to sense
Over-sensing - Answers -- the pacemaker is too sensitive
Endocardium - Answers -inner layer of the heart
Myocardium - Answers -thick, middle layer of the heart
Epicardium - Answers -outer surface of the heart muscle
RCA - Answers -extends to the back of the heart and perfuses the posterior of the heart
ECG prep - Answers -alcohol before skin prep
Time it takes the paper to come out of the EKG machine? - Answers -25 mm/s
Vertical axis - Answers -voltage--small box = 0.1 mv
Horizontal axis - Answers -time--small box = 0.4 sec
How often are tick marks? - Answers -every 3 seconds
Isoelectric line - Answers -electrical charges in the heart are equal
5 lead - Answers -smoke over fire, clouds over grass, brown in the middle
QT prolongation - Answers -- can cause torsades
- can be affected by drugs (antibiotics, Antidysrhythmic , antipsychotic drugs)
Atrial pacemaker fires... - Answers -before the P wave
Ventricular pacemaker fires... - Answers -before the QRS complex
Threshold - Answers -the lowest amount of energy needed to produce a "capture"
Failure to pace - Answers -no pacemaker activity, it is not firing. This could be a
sensitivity problem or a mechanical issue
Failure to capture - Answers -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 - Answers -If the pacer spike is in the T wave, it is failure to sense
Over-sensing - Answers -- the pacemaker is too sensitive
