Purkinje fibers rate - Study guides, Class notes & Summaries

ATE 1211 Final Exam Questions with Certified Solutions **1. What does the P-wave on an ECG indicate about cardiac activity?** Options: - Represents the start of ventricular systole - Marks the onset of ventricular diastole - Indicates atrial depolarization - Reflects ventricular depolarization atrial depolarization **2. Which physiological event generates the initial heart sound?** Options: - Closure of the AV valves leading to pressure change - Turbulent flow as blood passe...

Test Bank For Applied Pathophysiology for the Advanced Practice Nurse, 1st Edition Lucie Dlugasch, Lachel Story. Which of the following coenzymes is(are) necessary for normal red blood cell nuclear maturation and DNA synthesis pathway? A) Vitamin D B) Folate C) Calcium D) Vitamin B12 (cobalamin) E) Both folate and vitamin B12 (cobalamin) Ans: E Complexity: Easy Ahead: Hematopoietic System Subject: Chapter 3 Title: Hematopoietic Function 2. von Willebrand factor is directly involved ...

PCT NHA EXAM WITH 100% CORRECT ANSWERS 2023 1. The lavender-topped tube contains: a. No additive b. SPS c. Na+ citrate d. EDTA - Correct answer-d. EDTA 1. The additive in a gray-topped tube is: a. K+ oxalate b. Na+ citrate c. EDTA d. None of the above - Correct answer-a. K+ oxalate 1. Which of the needle has the largest gauge? a. 16 g b. 20 g c. 21 g d. 25 g - Correct answer-a. 16 g 1. Which of the following gauge needle is used for the typical adult venipuncture? a. 23 g b. 1...

P wave - ANSWER Depolarization of the atria PR interval - ANSWER -Normal is 0.12 to 0.2 seconds - onset of atrial depolarization until onset of ventricular polarization QRS complex - ANSWER -Normal is 0.06 to 0.11 seconds -Ventricular depolarization -systole T wave - ANSWER -appears after QRS complex - Ventricular repolarization -Spiked T-wave occurs with hyperkalemia U wave - ANSWER - repolarization of the purkinje fibers - seen in patients with hypokalemia SA node - ANSWER...

Relative refractory periods - ️️occurs towards the end of the T-wave when most ventricular cells are repolarized and vulnerable to new stimuli; can lead to VT if PVC lands during this time Refractory = resistant Supraventricular Tachycardia (SVT) - ️️§ regular but fast rhythm § rate 150-250 § P wave merged with T wave § PRI variable & difficult to measure § QRSà typically narrow § Common causes: stimulants, electrolyte imbalance, hypoxia Sinoatrial Node (SA node) Rate? ...

What is the difference between sinus rhythm and sinus bradycardia? a. different rhythm b. different QRS complex c. different rates d. different p waves c. different rates Which intervals are traditionally measured to be able to evaluate an electrocardiogram? SATA a. QRS b. PR interval c. TR interval d. PT interval a. QRS b. PR interval Which is the correct order of normal electrical activity in the cardiac cycle? a. Bundle branches, Purkinje fibers, SA node, AV node b. SA node, AV node, Bundle...

NURS 420 Exam #1 Questions and Answers | 100% Verified and Updated a wide QRS is defined as - Answer-greater than .12 sec Conduction system of the heart - Answer-SA node, AV node, bundle of His, r and l bundle branches, and Purkinje fibers What is the P wave of an ECG? - Answer-atrial depolarization What is the QRS complex of an ECG? - Answer-ventricular depolarization and atrial repolarization What is the T wave of an ECG? - Answer-ventricular repolarization PR interval - Answer-delay ...

Basic Dysrhythmias Part I & II Questions & Answers A+ 1 / 29 Pacemakers of the Heart P wave AV node conduction AV Valves QRS complex Sinoatrial (SA) node Atrioventricular (AV) node Bundle of His Bundle Branches Purkinje Fibers -SA node: p wave -SA node to AV node: PR segment -Impulse travels from Bundle of His to Bundle branches and then to Purkinje fibers: QRS complex -Repolarization of ventricles: T wave sinoatrial node (SA node) starts an im￾pulse, as the wave of depolari...

The largest vein in an animal's body is: - Answer- vena cava If immature neutrophils are observed in peripheral blood, the condition is called a: - Answer- left shift What type of cell is responsible for immunity against intracellular pathogens? - Answer- T-Lymphocytes The ductus arteriousus in a fetus allows blood to flow directly: - Answer- into the aorta from the pulmonary artery During hemostasis, which process occurs first? - Answer- Platelet adhesion Jaundice (icterus) coul...

depolarization - ANS - inside of cell becomes positive, outside negative - contraction - na+ channel opens - ELECTRICAL repolarization - ANS movement of cells = inside is negative again - na+ channels close, k+ channels open - MECHANICAL p wave qrs wave t wave - ANS - (p) atrial depolarization - (qrs) ventricular depolarization - (t) ventricular repolarization refractory period - ANS per of time where cardiac cells cannot respond to stimulus absolute refractor...