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AMCA EKG EXAM 2 NEWEST 2025 ACTUAL EXAM|
COMPLETE 200 QUESTIONS WITH CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+ | AMCA EKG EXAM 2| BRAND
NEW!!
What are the three layers of the heart wall? - ANSWER - Epicardium (outer), Myocardium (middle), and Endocardium (inner).
During which phase of the cardiac cycle do the coronary arteries fill? - ANSWER - Early systole (contracting)
How much of the blood coming into the ventricles flows passively through the atria? - ANSWER - 70% or 80%
With the ECG paper - ANSWER - Five small squares, which make up a larger box, represent 0.20 seconds in duration.
On ECG paper, horizontal measurements are used to determine the? - ANSWER - heart rate
What is placed on the patients skin to detect the hearts electrical activity? - ANSWER - Electrodes (censors)
Duration of each small square running horizontally? - ANSWER - .04 seconds 1 / 3
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pg. 2 The initiation of the impulse in the SA node and its movement through the atria produces a? - ANSWER - P-wave
Describe the T-wave - ANSWER - has a peak which is closer to the end then the beginning
What is used as a reference point to identify the changing electrical amplitude? - ANSWER - The isoelectric line (base line)
What vital sign should not be taken of the patient confronts you with chest pain? - ANSWER - Weight
Which of the following terms is associated with the sudden onset of an ectopic atrial focus with the heart beat between 150-200bpm? - ANSWER - A-fib
What can prevent electrodes from being placed on there usual locations?
- ANSWER - Amputations, casts, or wounds
A patient of warfarin therapy is instructed to eat food high in vitamin K consistently or it will affect their therapy. What foods can be recommended with high vitamin K? - ANSWER - Cabbage and asparagus
When educating a patient about factors that increase the risk of atherosclerosis, include which of the following? - ANSWER - High BP and obesity 2 / 3
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pg. 3 When monitoring a patient with sinus arrhythmia, a gradual increasing of the heart rate is usually associated with? - ANSWER - excessive caffeine intake
A calibration mark is? - ANSWER - 10mm tall
An electrical current traveling toward a positive electrode produces a waveform that? - ANSWER - points upwards
To view the limb leads, we place electrodes on the - ANSWER - Right arm (RA), left arm (LA), and left leg (LL)
With lead 2, the positive electrode is positioned on the? - ANSWER - left leg
How many electrodes are used as part of a 12 lead ECG? - ANSWER - 10 electrodes
Which of the following is the first structure that will be seen when imaging from the suprasternal notch? - ANSWER - Aortic arch
Which one of the following tests does not permit the calculation of the cardiac ejection fraction? - ANSWER - A chest x-ray
Which of the following is the best method in an irregular rhythm? - ANSWER - 6 second intervals x 10 method
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