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AMCA EKG - Practice Questions with
Certified Solutions
what is the most accurate method for acquiring heart rate? ✔✔1500 method
As an impulse moves toward a positive electrode it produces what type of deflection? ✔✔upward
on ECG papers horizontal measurements are used to determine what? ✔✔heart rate
the initiation of the impulse in the SA Node and its movement through the atria produce? ✔✔P- wave
repolarization of the ventricles is represented by the? ✔✔T-wave
artifact is? ✔✔problematic because it can mimic life-threatening dysrhythmias
two PVC's in a row are called a: ✔✔couplet
the heart valve that is situated between the right atrium and the right ventricle is called? ✔✔the tricuspid valve
automaticity means: ✔✔the ability of certain cells to produce an electrical impulse without the need for outside nerve stimulation
each small square running horizontally represents: ✔✔0.04 seconds
how many electrosdes are used as part of a 12-lead ECG? ✔✔ 10
the third step of analyzing an ECG rhythm is? ✔✔evaluate the P-wave
the PR-intervals get progressively longer in: ✔✔2nd degree AV heart block, Type I
a heart rate below 60 bpm is called: ✔✔bradycardia
atrial fibrillation has: ✔✔no P-waves
when preparing a patient to wear a Holter Monitor, instruct the patient to: ✔✔depress the event marker for significant symptoms
when no abnormalities show during a resting ECG, the physician may order an Exercise ECG. Another name for this is: ✔✔stress test
which of the following terms refers to the ventricular ectopic discharge at a rapid, regular rate in excess of 100 BPM? ✔✔ventricular tachycardia
This cavity contains the heart and lungs, among other organs: ✔✔thoracic
Located near the back of the body, this body cavity is a continuous internal opening that includes the cranial and spinal cavities: ✔✔posterior (dorsal) cavity
This is the scrubbing of instruments with special brushes and detergents to remove blood, mucous, etc: ✔✔sanitization
This is the process that involves a soaking or wiping process and inhibits the activity of disease- causing organisms: ✔✔disinfection
The process used for supplies that would come in contact with internal body tissue or an open wound. It involves the use of heat (steam) and an autoclave: ✔✔sterilization
The patient has a history of cardiovascular disease. Which of the following tests would not be used as a screening procedure? ✔✔colonoscopy
Which plane divides the body into right and left portions? ✔✔sagittal
The amount of blood flow to the myocardium is termed: ✔✔perfusion
Which heart valve is between the left atrium and the left ventricle? ✔✔bicuspid
The total amount of blood pumped out of the heart in one minute is known as the: ✔✔cardiac output
Which of the following irregularities on an ECG would be considered the most severe? ✔✔V-fib
Which ECG lead is considered bipolar? ✔✔lead II
An example of a dorsal cavity is the: ✔✔spinal cavity
You are obtaining an ECG using a 10 lead ECG machine. The patient accidentally coughs while the strip is running, causing an artifact on the strip. This can be identified as a: ✔✔somatic tremor
The P wave on the ECG strip should be: ✔✔Upright reflection and in front of the QRS complex
Select the method of preparation for the patient that will ensure a successful ECG recording. ✔✔Making sure the patient's legs are not crossed and arms are resting at each side
The heart is surrounded by a thin fluid-filled sac called the: ✔✔pericardium
The middle layer of the heart is called the: ✔✔myocardium
How many chambers are there in the human heart? ✔✔ 4
This heart chamber delivers oxygen-rich blood to the ascending aorta. ✔✔left ventricle
The heart muscle gets its blood supply from the: ✔✔coronary arteries
This heart chamber receives blood from the systemic system. ✔✔right atrium
Marks on the ECG tracing caused by another source of activity are: ✔✔artifacts
The patient is asymptomatic during the ECG recording and you notice normal sinus rhythm. What should you do? ✔✔continue recording
The average normal heart rate is: ✔✔72 bpm
What sinus rhythm has a rate of less than 60 beats per minute? ✔✔sinus bradycardia
What sinus rhythm has a rate of more than 100 beats per minute? ✔✔sinus tachycardia
Depolarization ✔✔An electrical current that initiates teh contraction of the heart muscle
