AMCA EKG - Practice Questions with Certified Solutions

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? ✔✔u ...

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? ✔✔Pwave 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 which patient education process lets you know that the teaching plan is working? ✔✔evaluation which of the following actions is helpful in assisting patients with their needs? ✔✔keeping a list of community resources that can further assist the patient what is used to mark an ECG paper? ✔✔a stylus is a patient is said to be in asystole, the characteristics would be described as: ✔✔rate of 0 and no pulse what method of preparation for the patient that will ensure a successful ECG recording? ✔✔making sure the patients legs are not crossed and the arms are resting at each side when education a patients about factors that increase the risk of atherosclerosis include which of the following? ✔✔high blood pressure and obesity the ECG should be performed in a quiet environment because: ✔✔interference is minimized 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 diseasecausing 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 The heart's ability to create its own electrical impulse is known as: ✔✔automaticity The technician is placing leads and electrodes on the patient's chest. At which location will lead V4 be placed? ✔✔Fifth intercostal space in the left midclavicular line The horizontal flat line that separates the various waves on the ECG strip represents: ✔✔the baseline When applying chest leads, V2 is placed: ✔✔At the fourth ICS, left sternal border Which body plane divides the body into equal portions? ✔✔midsagittal When you are facing someone in normal anatomical position, at which body plane are you looking? ✔✔frontal Which body plane divides the body into upper and lower portions? ✔✔transverse The term "distal" means: ✔✔Farthest from the point of attachment 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 bundle branches ✔✔branches off the bundle of HIS that conduct impulses to the left and right ventricles contractibility ✔✔Ability of the heart muscle cells to shorten in response to an electrical stimulus conductivity ✔✔ability of the heart cells to receive and transmit an electrical impulse automaticity ✔✔Ability of the heart to initiate an electrical impulse, AV Node - Delays the electrical conduction through the hear SA Node ✔✔Initiates the heartbeat, Excitability - Ability of the heart muscle cells to respond to an impulse or stimulus purkinje fibers ✔✔Distribute electrical impulses from cell to cell throughout the ventricles repolarization ✔✔Heart muscle cells return to their resting electrical state and the heart muscle relaxe Depolarization ✔✔An electrical current that initiates teh contraction of the heart muscle