AMCA EKG/ECG Pre-Test

AMCA EKG/ECG Pre-Test 2023/2024 This cavity contains the heart and lungs, among other organs. Select one: a. Cranial b. Nasal c. Thoracic d. Orbital Ans- Rationale - The thoracic cavity contains the lungs, heart, esophagus and trachea The correct answer is: Thoracic Located near the back of the body, this body cavity is a continuous internal opening that includes the cranial and spinal cavities. Select one: a. Pelvic cavity b. Posterior (dorsal) cavity c. Abdominal cavity d. Transverse plane Ans- Rationale - The dorsal cavity is divided into the cranial cavity and the spinal cavity The correct answer is: Posterior (dorsal) cavity This is the scrubbing of instruments with special brushes and detergents to remove blood, mucous, etc. Select one: a. Sanitization b. Disinfection c. Sterilization d. Distillation Ans- Rationale - Sanitization is the scrubbing of instruments and equipment with special brushes and detergents to remove blood, mucous and other contaminants The correct answer is: Sanitization This is the process that involves a soaking or wiping process and inhibits the activity of disease-causing organisms. Select one: a. Disinfection b. Sanitizing c. Treated with antiseptics d. Sterilization Ans- Rationale - Disinfection is the process that destroys most micro organisms; however it cannot kill all The correct answer is: 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. Select one: a. Distillation b. Disinfection c. Sanitization d. Sterilization Ans- Rationale - Sterilization is required for all instruments and supplies that will penetrate a patient's skin. Sterilization usually involves an autoclave or chemical (cold) process The correct answer is: Sterilization The patient has a history of cardiovascular disease. Which of the following tests would not be used as a screening procedure? Select one: a. Colonoscopy b. ECG c. Chest x-ray d. Blood work Ans- Rationale - A colonoscopy is done to visualize the large intestine and also to screen for colon cancer The correct answer is: Colonoscopy Which plane divides the body into right and left portions? Select one: a. Lateral b. Frontal c. Transverse d. Sagittal Ans- Rationale - A sagittal plane divides the body into left and right portions The correct answer is: Sagittal The amount of blood flow to the myocardium is termed: Select one: a. Influx b. Perfusion c. Contraction d. Stenosis Ans- Rationale - Sometimes thallium is injected into the patient's vein during a stress test for a better understanding of perfusion (blood flow to the myocardium): The correct answer is: Perfusion Which heart valve is between the left atrium and the left ventricle? Select one: a. Aortic semilunar b. Bicuspid c. Right atrioventricular d. Tricuspid Ans- Rationale - The bicuspid valve has two cusps and is located between the left atrium and left ventricle The correct answer is: Bicuspid The total amount of blood pumped out of the heart in one minute is known as the: Select one: a. Diastolic pressure b. Systemic circulation c. Cardiac output d. Systolic pressure Ans- Rationale - Cardiac output is the total amount of blood pumped out of the heart in one minute The correct answer is: Cardiac output Which of the following irregularities on an ECG would be considered the most severe? Select one: a. V- Fib b. PVC c. Tachycardia d. A - Fib Ans- Rationale - In true ventricular defibrillation, patients will be unresponsive when the ventricles are quivering without contracting. This will always be a Code Blue situation. The correct answer is: V- Fib The heart's ability to create its own electrical impulse is known as: Select one: a. Automaticity b. Excitability c. Conductivity d. Contractility Ans- Rationale - Automaticity is the ability of the heart to initiate an electrical impulse without being stimulated by a source outside the heart The correct answer is: Automaticity The technician is placing leads and electrodes on the patient's chest. At which location will lead V4 be placed? Select one: a. Lateral to the V4 lead b. Fifth intercostal space in the left midclavicular line c. Fourth intercostal space at the right sternal border d. Fourth intercostal space at the left sternal border Ans- Rationale - V4 is placed at the fifth intercostal space in the left midclavicular line The correct answer is: Fifth intercostal space in the left midclavicular line The horizontal flat line that separates the various waves on the ECG strip represents: Select one: a. A segment b. The baseline c. The amplitude