Automaticity - Study guides, Class notes & Summaries

A. • Topic from Task 1A1 Mathfactfluencyconnectsthequick,effortless,andaccuraterecallofbasicmath facts of all four operations addition, subtraction, multiplication, and division. This is a fundamental skill that helps students gain mastery and advance their mathematical learning. Math fact fluency builds the skills to focus on solving complex problems (e.g: algebraic problem solving) rather than simple computation. However, many students cannot recall and retain the basic math facts. Thi...

Dysrhythmias * they can result in deviations from a normal HR and/or rhythm, causing decreases in cardiac output. Some dysrhythmias are lethal, causing a complete loss of CO, which result in cardiopulmonary arrest. Other dysrhythmias are apparent on ECG's but are symptomless correct answer: Disruptions in the cardiac conduction pathway or disorders of the electrical impulse conduction within the heart HR x SV = CO HR is how many times the heart beats per minute; SV is the amount of...

Automaticity correct answers The ability to act as an impulse, initiating electrical activity and spontaneous depolarization (this is the most important difference between cardiac and skeletal muscle cells) Excitability correct answers The ability to respond to a stimulation and initiate an impulse Conductivity correct answers The ability to transmit an impulse that has been initiated and passes along cell membrane Refractoriness correct answers The inability of a muscle cell fiber to r...

electrical properties of the heart1-automaticity 2-excitability 3-conductivity 4-contractility automaticity=the ability of cardiac cells to depolarize spontaneously w/o external stimuli -cells able to modify membrane to pull in Na+ while K+ exits -rapid depolarization when threshold potential is reached -only certain cells have property of automaticity: SA node, AV node, bundle of HIS, purkinje network

A client with asthma receives a prescription for high blood pressure during a clinic visit. Which prescription should the nurse anticipate the client to receive that is at least likely to exacerbate asthma? - ANS Metoprolol tartrate (Lopressor) Best antihypertensive med for asthmatics. Beta2 blocking agent -- also a cardioselective and less likely to cause bronchoconstriction. A male client who has been taking propranolol (Inderal) for 18 months tells the nurse that the healthcare provid...

AACN CMC EXAM 2024 WITH 100% CORRECT ANSWERS What percentage of ventricular filling is passive and what percentage is atrial kick? - correct answer Passive - 75% Atrial kick -- 25-35% What 3 components make up stroke volume? - correct answer Preload Afterload Contractility Uses of beta blockers - correct answer HTN Classic angina (Coronary artery obstruction) Ventricular and Supraventricular arrhythmia's ACS Heart failure Hypertrophic cardiomyopathy Clinical effects of b...

168. Compared to the permanent pacemaker, does a temp pacer have constant current or voltage? Also, how much voltage can it generate? 5V or 20V? - ANS Constant current, 20V. (Doubles 9.5V) 171. Which patient with acute MI is most likely to need a temp pacer? Inferior MI, Mobitz I AV Block Inferior MI, bundle branch block Anterior MI, Mobitz I AV Block Anterior MI, bundle branch block - ANS Anterior MI, bundle branch block Acute BBB post MI should be seen as a warning and often p...

CER Prep UPDATED Exam Questions and CORRECT Answers Fluency - CORRECT ANSWER- Basic definition: rate and accuracy of oral reading or proficiency in word recognition. Other components often included in the definition: smoothness and automaticity of oral reading; rapid, accurate decoding; correct prosody; anticipatory ability (P, intro section 4) Fluency is reading at an appropriate rate, with accuracy and prosody. It is the ability to read accurately yet quickly, with expression and c...

You are in the clinic with your mentor observing exercise test of a 45 year old who has been experiencing slight chest pressure almost daily during exercise. While observing your patient your mentor points out that the left ventricle wall is thinning and there is some hyperkinesia of the ventricular wall. From your time in the clinic you know that this test will be what type of result Correct Answer-positive What are the most common mechanisms to produce cardiac arrhythmias? Correct Answer-en...

What does it mean when the heart is electrically polarized at rest? - Accurate AnswersThe inside of the heart cell has a higher potassium concentration, whereas the outside has a higher concentration of sodium. • The higher positive charge outside the cell causes a relatively more negative charge inside the cell. • The difference between the charges outside and inside of the cell wall is known as its electrical potential. What occurs during depolarization within the heart cell? - Accura...