EP CONNECT ONLINE ACCESS FOR BIOLOGY
20th Edition
ISBN: 9781260494655
Author: Raven
Publisher: MCG COURSE
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 48, Problem 4S
Summary Introduction
To determine:
The clinical symptoms that indicate that a person requires surgical implantation of mechanical pacemaker.
Introduction:
The heart’s natural pacemaker is the SA (sinoatrial) node. It is also known as the sinus node. The work of SA node is to generate electrical impulses of the heart. It is a major part of cardiac conduction system and helps to control the heart rate. It consists of cells that are located in the upper part of the right atrium wall.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
How much does a pacemaker cost?
How much does it cost to produce pacemaker?
Why should we maintain a patient in a compensated heart failure state?
Your 70-year-old neighbor, Mr. Michael, tells you he has been diagnosed with a second degree heart block. The physician told him he would need a pacemaker implanted. He knows you are a registered nurse and he wants you to explain pacemakers to him. He is worried he will not be able to use a cell phone. Describe for Mr. Michael what a pacemaker is and what precautions, if any, he has to take after the pacemaker is implanted.
Chapter 48 Solutions
EP CONNECT ONLINE ACCESS FOR BIOLOGY
Ch. 48.1 - Prob. 1LOCh. 48.1 - Prob. 2LOCh. 48.2 - Prob. 1LOCh. 48.2 - Prob. 2LOCh. 48.2 - Prob. 3LOCh. 48.3 - Prob. 1LOCh. 48.3 - Prob. 2LOCh. 48.4 - Prob. 1LOCh. 48.4 - Prob. 2LOCh. 48.5 - Prob. 1LO
Ch. 48.5 - Prob. 2LOCh. 48.5 - Prob. 3LOCh. 48.5 - Prob. 4LOCh. 48 - Prob. 1DACh. 48 - Prob. 1IQCh. 48 - Prob. 2IQCh. 48 - An ECG measures a. changes in electrical potential...Ch. 48 - Systole is vitally important to heart function and...Ch. 48 - Which of the following is the correct sequence of...Ch. 48 - Which of the following statements is not true? a....Ch. 48 - Prob. 5UCh. 48 - Prob. 6UCh. 48 - When a sphygmomanometer is used, a. blood pulses...Ch. 48 - Prob. 8UCh. 48 - In vertebrate hearts, atria contract from the top,...Ch. 48 - Prob. 2ACh. 48 - The difference between the amphibian and mammal...Ch. 48 - Prob. 4ACh. 48 - Humans have a number of mechanisms that help to...Ch. 48 - Prob. 2SCh. 48 - Is the evolution of the four-chambered heart...Ch. 48 - Prob. 4S
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Why is it so difficult to get to the heart during open heart surgery?arrow_forwardPick all the correct answers for electrocardiogram (EKG). A) measures the electrical activity of the heart B) measures the cardiac output of the heart C) utilized to diagnose abnormal rhythms of the heart D) utilized to measure brain function CHAarrow_forwardwhy cardiac therapy is for the worst?arrow_forward
- Select the correct statement regarding the AV node B) it produces the P wave on the EKG C) it is also known as the heart's pacemaker D)it contains autorhythmic cellsarrow_forwardon an EKG strip, a nurse determines that a patient's heart is beating 5 times every 4 seconds. Calculate the time for each heart beat in seconds: Calculate the patient's heart rate in beats/min: (Hint: Divide 60 by the time per beat)arrow_forwardYou are a nursing student who is assigned to a busy medical-surgical unit that specializes in the care of patients with various cardiac related disorders. One of your patients for the day is Mr. Stein, a 66 year old male with a primary diagnosis of a myocardial infarction. You enter the room to conduct your morning assessment and you find that Mr. Stein does not appear to be in a positive mood. As you begin your assessment, Mr. Stein criticizes your technique and berates you for anything you seem to do. Should you continue with your assessment? If so, could you say or do anything different to help improve the situation? How do you think receiving criticism and negative feedback may affect your job performance, if at all? Prior to beginning your assessment, could you have said or done anything that may have prevented or reduced Mr. Stein's hostility towards you?arrow_forward
- I need to calculate the approximate heart rate based on the given ECG results, but I can't get how to determine the length of time between two consecutive R waves. What I see, it's one second between the two highest waves (I suppose they are R waves). But it means the heart rate should be 60 beats per minute, but there is no option for this answer. Teach me how to determine correctly the length of time between two consecutive R waves.arrow_forwardYou are caring for a 50-year-old male who is recovering from open heart surgery and you are unable to palpate the radial pulse. What additional intervention should be done in this scenario?arrow_forwardA patient in the ICU is receiving continuous electrocardiogram (ECG) monitoring. The nurse identifies which dysrhythmia as potentially life-threatening and requiring immediate intervention? a) Sinus bradycardia b) Atrial fibrillation c) Premature ventricular contractions (PVCs) d) Ventricular tachycardia (VT)arrow_forward
- My question is about surgeries, do cardiovasular surgeons prefer one surgery over another or would it just be based off the severity of the disease?arrow_forwardThe standard EKG consists of 10 sensors that record 12 leads of the heart’s electrical activity from different angles, allowing for a thorough three-dimensional interpretation of its activity. This is transmitted by the electrodes to the equipment to be interpreted and is used to diagnose cardiac medical conditions. In case of an abnormal EKG, the second step would be to use a Holter monitor. How would you explain to your classmates how to perform an EKG (steps)? Where will you place the electrodes when performing and EKG? Why? What are the different lead types, connections, and placements? When you conclude an EKG, what are the different components that you need to observe and confirm before you disconnect the patient? Can you explain the difference between normal, abnormal, and artifacts? What is a Holter monitor? Under what circumstances would one be ordered for a patient? How do you use a Holter monitor? Educate a patient: What you will do before, during, and after an…arrow_forwardThe events of the cardiac cycle cause cyclical changes in left ventricular pressure and volume over time. Another way to represent these events is with a pressure-volume loop, as shown below. Drag the labels from the left into the appropriate boxes on the pressure- volume loop to demonstrate your understanding of the cardiac cycle. Aortic valve closure AV valve opening Systolic pressure Isovolumetric relaxation Isovolumetric contraction 120 Diastolic pressure Ventricular filling 80 End-diastolic volume Ventricular ejection 40 AV valve closure End-systolic volume Aortic valve opening 60 120 LV volume (mL) O McGraw-Hill Education Reset LV pressure (mm Hg)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Medical Terminology for Health Professions, Spira...Health & NutritionISBN:9781305634350Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. SchroederPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Medical Terminology for Health Professions, Spira...
Health & Nutrition
ISBN:9781305634350
Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. Schroeder
Publisher:Cengage Learning
Phlebotomy: Venipuncture Procedure; Author: Medical Lab Lady Gill;https://www.youtube.com/watch?v=LC9LABPts7M;License: Standard Youtube License