Biphasic deflection - Study guides, Class notes & Summaries

2 types of cardiac cells - Electrical -specialized cells which conduct electrical impulses -these cells start and transmit electrical activity in the heart Mechanical -cells which make up bulk musculature in the heart -these cells contract in response to stimuli from the electrical cells 2 types of cardiac cells - Electrical -specialized cells which conduct electrical impulses -these cells start and transmit electrical activity in the heart Mechanical -cells which make up bulk musculat...

ECG Course Exam Questions Correct Answers Current Update (Verified A+ Pass) -membranes resting potental -becomes less negative - Answers - Depolarization -return of cells membrane potential to resting potentil after depolarization - Answers - Repolarization -1st deflection of cardiac cycle -caused by depolarization of R & L atria - Answers - P wave -time from onset of atrial depol to the onset of ventricular depol -measured from begining of the P wave as it leaves baseline to the...

What is most useful when determining localization and polarity? a. activation b. montage c. frequency d. amplitude correct answers montage Negative polarity a. triphasic waves b. lambda c. alpha rhythm d. POSTS correct answers alpha rhythm Positive polarity a. PLEDs b. Mu rhythm c. Lambda d. vertex sharp wave correct answers Lambda The polarity convention for EEG states that the deflection is up if: a. input 2 is more negative than input 1 b. input 1 is more negat...

EXPH 387 - Exam 4 Questions & Answers Solved 100% Correct!!

MLPAO Test Prep ~ ECG Latest 2023 Graded A V1 placement 4th intercostal space R sternal border 4th intercostal space R sternal border V1 V2 placement 4th intercostal space L sternal border 4th intercostal space L sternal border V2 V3 placement Between leads V2 and V4 Between leads V2 and V4 V3 V4 placement 5th L intercostal space in midclavicular line 5th L intercostal space in midclavicular line V4 V5 placement Horizontally even with V4, but in the anterior axillary line Horizontally e...

A ______________ wave on EKG paper indicates atrial contraction correct answer: p A _____________ complex on EKG paper indicates ventricular construction. correct answer: QRS A ________ wave on EKG paper indicates ventricular relaxation. correct answer: t The PR interval extends from where to where? correct answer: Beginning of the p wave to beginning of the QRS complex The QRS complex measures from where to where? correct answer: Beginning of the Q wave to end of the S wave ...

Electrocardiogram (ECG) correct answer: Since you can't see the heart beating we use a ECG to provide a picture that replicates the actual cardiac issue. Myocardial Infraction (MI) correct answer: Heart Attack -Have abnormal rhythms. -Death of cardiac muscle due to ischemia Doe the ECG machine monitor or control the hearts rhythm? correct answer: Only monitors Straight line when machine is turned on but not connected to the patient correct answer: Isoelectric = no current ...

Med Surg 2 HESI Latest 2023 Topics Practice Questions and Answers, 100 Correct with Explanations, Highly Recommended, Download to Score A+ Med Surg HESI Topics 1. ICP Hazards - Increased ICP is the main concern in head injury; it is related to edema, hemorrhages, impaired cerebral auto regulation, and hydrocephalus. Symptoms of increased ICP are:  Change in level of responsiveness (the most important indicator of increased ICP)  Changes in vital signs (slowing of respirations or ...

ALU 301 Chapter 7 Exam Questions With 100% Correct Answers Dr. William Einthoven - answerDutch doctor and physiologist; invented the first practical electrocardiogram (EKG, ECG) in 1901. EKG - answerHas remained the most commonly used non-invasive diagnostic cardiac test worldwide. It serves as an important tool for the diagnosis of ischemia and myocardial infarction. It is the most accurate means of identifying significant arrhythmias and conduction abnormalities that carry extra mortali...

Ionotropy - Pertains to the contractility of the heart Lenegre's disease - The sclero-degenerative process involving the cardiac conduction system Ebstein's anomaly - Downward displacement of the tricuspid valve into the right ventricle with a large atrium and small right ventricle Mahaim fiber - Term for a 'nodofascicular' accessory pathway Right coronary artery - Supplies blood to the SA node in the majority of patients Infra-nodal block - Conduction that involves the His-Purkinje sy...