MA: EKG Exam Multiple Choices Questions And Accurate Verified Answers.

define tachycardia - correct answer fast, rapid heartbeat bradycardia - correct answer slow heartbeat arrhythmia - correct answer improper beating of the hear (irregular/too fast/ too slow) cardiac ischemia - correct answer lack of blood flow and oxygen to the heart muscle ventricular fibrillatin - correct answer life-threatening heart rhythm that results in a rapid, inadequate heartbeat premature contractions - correct answer extra, abnormal heartbeats that begin in the ventricles holter monitor - correct answer portable device that records the rhythm of the heart continuously myocarditis - correct answer inflammation in the muscle of the heart dyshythmia - correct answer abnormality in physiological rhythm, in the activity of the brain/heart athersclerosis - correct answer diseases of the arteries by the deposition of plaques of fatty material on their inner walls myocardial infarction - correct answer another term for heart attack sinus rhythm - correct answer any cardiac rhythm where depolarization of the cardiac muscle begins at the SA node. what part from the ECG waveform represents ventricular repolarization? - correct answer T wave what part from the ECG waveform represents atrial depolarization? - correct answer P wave this part from the waveform represents the time it takes for the cardiac impulse to travel from the atria to the ventricles - correct answer PR interval what part from the ECG waveform represents ventricular depolarization - correct answer QRS complex what part from the ECG waveform represents the end of ventricular depolarization and the beginning of ventricular repolarization - correct answer ST segment what speed does the paper move while recording a normal electrolcardiogram - correct answer 25 mm/s why would the paper be advanced to a faster speed? - correct answer if the patient has tachycardia, the paper would need to be in a faster speed what is a Holter Monitor? - correct answer a portable ambulatory monitoring system, that monitors over a 24 hour period what is the purpose for a holter monitor? - correct answer to get a view of the heart beat over an extended time frame what is the stress test? - correct answer monitors the heart beat with an increasing work load. what are artifacts? - correct answer appearances on the EKG tracing that are not natural and interfere with the normal appearence what is another term for a muscle artifact? - correct answer Somatic interference what are wandering baselines caused by? - correct answer loose electrodes, dried out electrodes, excess body oil, lotions and somatic movement. what does AC interference stand for? - correct answer alternating current what causes AC interference/60 cycle interference? - correct answer other electrical equipment in use near the electrocardiograph what does teletransmission do? - correct answer it is an EKG that is recorded in digital format and can be transmitted electronically to an EKG data interpretation site. define Interpretive Electrocardiograph - correct answer helps provide immediate information on the heart's activity, which leads to earlier diagnosis and treatment. define EMR connectivity - correct answer allows the electrocardiograph to be linked with the offices computer system, either wirelessly or through a USB port explain the maintance of the electrocardiograph - correct answer needs to be cleaned frequently with a soft cloth that has detergent, to remove dust and dirt. Also, make sure the cables are not damaged what are the Bipolar leads? - correct answer the first 3 leads (V1-V3) what is the measurement of electricity - correct answer amplitude what picks up the impulses from the heart? - correct answer electrodes what is the substance that facilitates the transmission of the hearts impulses - correct answer electrlytes what are the number of leads in a standard EKG - correct answer 12 when a hear rate is less than 60 BPM - correct answer braycardia what represents one heartbeat? - correct answer cardiac cycle define lead - correct answer the tracing/recording of the electrocardiogram of the heart define the electrode - correct answer small tab to pickup the electricity of the heart what is located inside of the elctrocardiograph to enhance the electrical impulses of the heart - correct answer ampliphier what does the augmented lead consist of - correct answer right arm, left arm, right leg, left leg what does the cardiac cycle represent - correct answer one complete heartbeat