AMCA EKG exam. questions and answers verified 2025, Exams of Nursing

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AMCA EKG exam

Gastro means - correct answer stomach Waveforms may be displayed on a screen called - correct answer oscilloscope The breastbone is referred to as - correct answer sternum What are the three layers of the heart? - correct answer epicardium, myocardium, endocardium The use of non-invasive and painless ultrasound to examine the heart, its chambers and valves is known as - correct answer echocardiography Which of the following actions is helpful in assisting patients with their needs? - correct answer Keeping a list of community resources that can further assist the patient Automaticity means - correct answer The ability of certain cells to produce an electrical impulse without the need for outside stimulation ventricular depolarization - correct answer QRS Contraction or Systole of the cardiac muscle - correct answer Depolarzaon Relaxation or Diastole of the cardiac muscle - correct answer Repolarization Atrial depolarization - correct answer P wave Ventricular repolarization - correct answer T Two PVCs in a row - correct answer couplet Atrial fibrillation has - correct answer no P-waves On an ECG horizontal lines measure - correct answer heart rate Lowers overall resistance in the vascular beds - correct answer ACE inhibitors The PR interval gets progressively longer in - correct answer 2nd degree AV heart block

Touching a person's body without their consent - correct answer battery An idioventricular rhythm has a rate of - correct answer 20-40 bpm Which patient education process lets you know that the teaching plan is working? - correct answer Evaluation Which of the following marks the ECG paper? - correct answer Stylus The normal standardization mark should be how high? - correct answer 10 mm The pericardial sac that surrounds the heart - correct answer allows the heart to expand & contract with minimal friction Making false statements orally - correct answer slander Before placing electrodes on the patient's body, interference may occur if there is a lot of hair covering their body and will need to be shaved. What should you do prior to shaving the patient? - correct answer Ask the patient's permission before shaving them Dysrhythmia means - correct answer ECG rhythm differs from normal sinus rhythm The contraction phase of the heartbeat is called - correct answer Systole Where is V2 located? - correct answer 4th intercostal space to the left of the sternum If a patient is said to be in asystole, the characteristics would be - correct answer Rate of 0 and no pulse Premature atrial complexes originate from the - correct answer Atria Which of the following is treated with hydrocholorothiazide? - correct answer high blood pressure and fluid retention When no abnormalities show during a resting ECG the physician may order an exercise ECG Another name for this is - correct answer stress test Junctional tachycardia has - correct answer PR intervals less than 0.12 seconds Characteristics of premature ventricular complexes include that they - correct answer Have a wide and bizarre QRS complex When preparing a patient to wear a Holter monior instruct the patient t - correct answer Depress the event marker for significant symptoms

The 3rd step of analyzing an ECG is to: - correct answer Examine the P wave A medication that can be used as a local anesthetic as well as a first line anti-arrhythmic used to treat acute life threatening ventricular arrhythmia is: - correct answer Xylocaine Tall and symmetrical peaked P waves may be seen with - correct answer Increased right atrial pressure and right atrial dilation The category of anti-hypertensive medications that will cause vasodilation, block aldosterone secretion and increase urine output - correct answer ACE inhibitor Which of the following is the first structure that will be seen when imaging from the suprasternal notch? - correct answer Aortic arch The wall that separates the two superior chambers of the heart is called - correct answer Interatrial septum The skeleton of the heart: - correct answer Separates the atria from the ventricles The heart receives most of its own blood supply via the: - correct answer coronary arteries Regulation of the heart rate, speed of electrical conduction and strength of contraction are influenced by the brain via the _______ nervous system - correct answer Autonomic The cardio accelerator center - correct answer Is part of the sympathetic nervous system How much blood coming into the ventricles flows passively through the aorta? - correct answer 70% During which phase of the cardiac cycle do the coronary arteries fill? - correct answer Early diastole During depolarization: - correct answer Impulses are generated and transmitted when positively charged ions move inside the cell causing interior to be positive The most muscular chamber of the heart that forces blood through the aortic valve into the aorta would be the: - correct answer Left ventricle

The T wave: - correct answer Is normally oriented in the same direction as the preceding QRS complex The initiation of the impulse in the SA node and its movement through the atria produces - correct answer P wave What is used as a reference point to identify the changing electrical impulse? - correct answer Isoelectric line With lead II, the positive electrode is positioned on the: - correct answer Left leg A standardization mark is: - correct answer 10 mm tall; 2 large squares high An electrical current traveling toward a positive electrode produces a waveform that - correct answer Points upward The most accurate way to measure heart rate is: - correct answer 1500 method The electrocardiogram measures - correct answer the heart's electrical activity The electrocardiograph can do all of the following EXCEPT - correct answer determine perfusion status of the patient The limb leads are obtained by placing electrodes on the - correct answer right arm, left arm and left leg R-on-T PVC: - correct answer Occurs on or near the T wave of the previous beat The normal QRS complex: - correct answer Has a duration of 0.06 to 0.12 seconds A flat line going across the screen is known as: - correct answer Asystole