Impulse conduction - Study guides, Class notes & Summaries

Test Bank Porth Pathophysiology Concepts of Altered Health States 2nd Canadian EditionTable of Contents Chapter 01: Concepts of Health and Disease .......................................................................................................... 2 Chapter 02: Concepts of Altered Health in Children ............................................................................................. 13 Chapter 03: Concepts of Altered Health in Older Adults ............................................

CCDS IBHRE LATEST UPDATE ALREADY GRADED A Rheobase the lowest point on a strength duration curve at an infinitely long pulse duration Chronaxie time the pulse width at twice the rheobase value. It approximates the most efficient stimulation pulse duration Charge (formula) Charge= I(current) x T(time) Furman's formula Energy(microjoules)= I(current)xV(voltage)xT(pulse width) Ohms law formula Voltage(electromotive force)= I(current/flow of electrons) x R(resistance to current flow in ohms) Fu...

Advent Health EKG (New 2023/ 2024 Update) Questions and Verified Answers with Diagrams and Illustrations_ 100% Correct QUESTION Junctional Tachycardia Answer: Same criteria as Junctional Rhythm, except the Ventricular rate is 100-150 QUESTION Premature atrial complexes Answer: The impulse is an irritable focus within the Atrium which fires prematurely and produces a single ectopic beat • Key to diagnosis: early P wave noted, which may appear slightly diff ...

Exam 1: BIOS 252 / BIOS252 (Latest 2024/ 2025 Update) Anatomy and Physiology II Exam Review| Questions and Verified Answers| 100% Correct| Grade A - Chamberlain Q: What is the name of the chemical that is secreted by the synaptic end bulb and is used to stimulate or inhibit another cell? A. Chemical receptors B. Meninges C. Neurotransmitters D. Saltatory conduction Answer: C. Neurotransmitters Q: Using stimulation like pressure or stretching to open a cell membran...

CCDS IBHRE Exam Questions & Answers 2023/2024 Rheobase - ANSWER-the lowest point on a strength duration curve at an infinitely long pulse duration Chronaxie time - ANSWER-the pulse width at twice the rheobase value. It approximates the most efficient stimulation pulse duration Charge (formula) - ANSWER-Charge= I(current) x T(time) Furman's formula - ANSWER-Energy(microjoules)= I(current)xV(voltage)xT(pulse width) Ohms law formula - ANSWER-Voltage(electromotive force)= I(current...

_____________ occurs when a cell is injured and the cell body swells and shifts its nucleus to the periphery. - Chromatolysis ________________ occurs when a cell is injured and the cell body swells and shifts its nucleus to the periphery. - Chromatolysis _________________ fibers are fibers that connect one hemisphere to another. - Commissural ____________________ conduction occurs when an impulse jumps from node to node on an axon. BE SURE TO SPELL CORRECTLY - saltatory __________________...

MAYO ECG Exam Tested Questions & Revised Correct Answers < UPDATED & ALREADY PASSED > PR interval represents: - ANSWER : electrical conduction time from the atria to the AV node Is atrial flutter benign? - ANSWER : no PR interval - ANSWER : .12-.20 QRS interval - ANSWER : <.12 What lead do you look at - ANSWER : V1 Interventions - ANSWER : assess the patient QRS wave - ANSWER : ventricular depolarization P wave - ANSWER : atrial depolarization AV node purpose - ANSWER : de...

Midterm/ Final Exam: NR 509 / NR509 (Latest 2023/2024) Advanced Physical Assessment Quiz Bank | Questions and Verified Answers with Rationales | Chamberlain College A patient has been diagnosed with venous stasis. Which of these findings would the nurse most likely observe? a. Unilateral cool foot b. Thin, shiny, atrophic skin c. Pallor of the toes and cyanosis of the nail beds d. Brownish discoloration to the skin of the lower leg Answer: D A brown ...

Excitability - Answer- the ability of non-pacemaker heart cells to respond to an electrical impulse that begins in pacemaker cells. Depolarization - Answer- occurs when the normally negatively charged cells within the heart muscle develop a positive charge. Conductivity - Answer- the ability to send an electrical stimulus from cell membrane to cell membrane. As a result, excitable cells depolarize in rapid succession from cell to cell until all cells have depolarized. Ex: the wave of depolarizat...

Health Assessment Exam 3 test bank questions and answers 100% verified. While auscultating the heart at the third intercostal space, left sternal border, the nurse notes a high-pitched, scratchy sound that increases with exhalation with the client leaning forward. The nurse would document which of the following? A) Pericardial friction rub B) Midsystolic click C) Summation gallop D) Aortic ejection click - correct answers.A) Pericardial friction rub During chest auscult...

dysrhythmia aka arrhythmia - Correct answer - abnormal cardiac rhythms which can cause disturbances of: rate, rhythm, or both rate and rhythm how are dysrhythmias identified? - Correct answer Electrographic Waveform Analysis (ECG) what controls the rate and rhythm of the heartbeat? - Correct answer the heart's electrical system explain the heart's electrical system - Correct answer Each electrical signal (impulse) begins in a group of cells called the sinus node or sinoatrial (SA...