QUESTION 4Match the arrhythmias with their correct definitions:A. Slow heart rate caused by the AV node taking overas pacemakerB. Overly slow heart rateC. Overly fast heart rate* Bradycardia+ Fibrillation* TachycardiaD. Rapid and irregular contraction of heart muscleE. Failure of the SA node to send signals to the AV+ Heart Block+ Junctional rhythmnode

An arrhythmia is a problem with the rate or rhythm of your heartbeat. It means that your heart beats…

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e arrhythmias w

Principles Of Pharmacology Med Assist

6th Edition

ISBN:9781337512442

Author:RICE

Publisher:RICE

Chapter23: Medications Used For Cardiovascular System Disorders

Section: Chapter Questions

Problem 3RQ

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Question no 9.practice Bradycardia is all of the following except A. A heart rate of 60 beats or less B. Due to increased parasympathetic input C. Due to increased sympathetic input D. The baroreceptors and cardiac control center play a significant role in the response. Choose the correct answer?
Question 26 Which is true of the Baroreceptor response. A. Has mechano-sensors in the carotid sinus. O B. Regulates blood pressure during postural changes via the parasympathetic pathway. OC. Has mechano-sensors in the aorta. O D. Alters heart rate quickly with a stronger response to changes in pressure compared to steady-state absolute pressure. OE. All are true.
Question 7. In the ECG strip below, which arrhythmia is present? aVR II II 13 EDCent ED CRDER: A. Premature ventricular contractions B. Premature atrial contractions C. Segment elevation D. Normal sinus rhythm
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please answer multiple choiceses under line the right ones Consider venous return. Which ONE of the following could increase venous return? A decrease in sympathetic nervous system activity to the veins. Exhaling (moving) air out of the lungs An increase in skeletal muscle contractions 2. Why does the plateau phase of the cardiac action potential allow for the completion of contraction and relaxation of cardiac muscle? Because the plateau phase is absolute refractory to another stimulus Its summation of action potentials allows for smooth contraction of cardiac muscle It allows for the faster opening of K+ channels 3.Consider two ECG waveforms occurring one after another. If the R-R interval decreases, then what is happening? The QRS complexes become wider and slower -The rate of ventricular DEpolarization increases - There is an increase in heart rate 4.Given systolic pressure= 130 mmHg. Diastolic pressure=95 mmHg. Mean arterial pressure falls in which of the following…
please answer multiple choiceses Consider venous return. Which ONE of the following could increase venous return? A decrease in sympathetic nervous system activity to the veins. Exhaling (moving) air out of the lungs An increase in skeletal muscle contractions 2. Why does the plateau phase of the cardiac action potential allow for the completion of contraction and relaxation of cardiac muscle? Because the plateau phase is absolute refractory to another stimulus Its summation of action potentials allows for smooth contraction of cardiac muscle It allows for the faster opening of K+ channels 3.Consider two ECG waveforms occurring one after another. If the R-R interval decreases, then what is happening? The QRS complexes become wider and slower -The rate of ventricular DEpolarization increases - There is an increase in heart rate 4.Given systolic pressure= 130 mmHg. Diastolic pressure=95 mmHg. Mean arterial pressure falls in which of the following ranges? -100-110mmHG…
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Please answer all 3 questions below. These are the only questions left. Question 14 Select one answer.One of the determinants of blood pressure is cardiac output. Which of the following most directly determine cardiac output? a. stroke volume and vascular diameter b. stroke volume and heart rate c. viscosity and heart rate d. arteriolar diameter and viscosity NOTE: C IS INCORRECT Question 15 Select one answer. One of the determinants of blood pressure is vascular resistance. Which of the following lists each of the factors that most directly determine vascular resistance? a. vessel diameter and vessel length b. viscosity, vessel diameter, vessel length, and hematocrit c. viscosity, vessel diameter, and vessel length d. viscosity, vessel diameter, vessel length, and flow through the vessel NOTE: A IS INCORRECT Question 25 Select one answer. Right ventricular systolic pressure is less than left ventricular systolic pressure because __________. a. the right ventricle pumps less blood b.…
Please answer all A. The second heart sound is caused by? B. Describe the layers of the heart? C. What are chordae tendenae and what are they attached to?
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