Describe the Cardiac Cycle The Cardiac cycle is a description of the activities that take place in the period from the start of one heart the next. The conducting system autonomically controls the heart beat impulses it is also called the cardiac conduction system or the nodal system. It is made up of six main components the sinoatrial node (SA-Node)‚ internodal paths‚ atrioventricular node (AV-Node)‚ atrioventricular bundle (AV bundle) or bundle of His‚ bundle branches and Purkinje fibres. Contractile
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Summary: AED Defibrillators: Having access to an AED is essential for resuscitating those who have suffered from SCA (sudden cardiac arrest). Because the incidences of SCA are increased during and after strenuous physical activity‚ every school should have AED(s) that can be accessed very quickly. Sudden Cardiac Arrest: Sudden cardiac arrest is the leading cause of death in young athletes. NATA convened an inter-association task force in Atlanta in 2006 to create guidelines on emergency management
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Muscles are all made of the same materials‚ a type of flexile tissue of thousands narrow tissues that make up all the muscles. There are three types of muscle tissue in the human body which are Cardiac‚ Smooth and Skeletal Muscles. Cardiac Muscles are muscles that conduct‚ forced‚ being completely in heart‚ responsible for pumping activity of heart‚ very heavy and solid. Smooth are non band‚ not under voluntary force found in comfortable organs of body accountable for growth like absorption of food
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Activity 4: Generation of Action Potentials Name: Instructor: Date: PREDICTIONS 1. Exceeding the threshold depolarization at the trigger zone DECREASES the likelihood of generation of action potential. 2. Action potential amplitude: DOES NOT CHANGE with distance 3. Increasing frequency of stimulation to the trigger zone: DOES NOT increase the production of action potentials. MATERIALS AND METHODS Experiment 1: Effect of Stimulus Strength on Action Potential Generation 1. Dependent Variable
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sufficient background and information about cardiac pacemakers to allow interpretation of electrocardiograms (ECGs) and telemetry strips of normal pacemaker behavior. For more in-depth information‚ such as would be necessary for programming pacemakers‚ a standard pacing text should be consulted. Several of these are listed in the bibliography. Most italicized terms are defined in the glossary at the end of the chapter. Anatomy The pertinent anatomy for cardiac pacing includes the sinoatrial (SA) node
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Purpose ● What is the purpose of this exercise? The purpose of this exercise is to become familiar with the terms and usage of a microscope. ●Are there any safety concerns associated with this exercise? If so‚ list what they are and what precautions should be taken. Care must be taken while handling the microscope so as not to accidentally drop anything and harm oneself. Questions A. The following statements are true or false. If true‚ write a “T” on the answer line. If false‚ write
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Name: Christina Hale Exercise 3: Neurophysiology of Nerve Impulses: Activity 4: The Action Potential: Importance of Voltage-Gated Na+ channels Lab Report Pre-lab Quiz Results You have not completed the Pre-lab Quiz. 02/28/15 page 1 Experiment Results You have not completed the Experiment. Experiment Data: 02/28/15 page 2 Post-lab Quiz Results You have not completed the Post-lab Quiz. 02/28/15 page 3 Review Sheet Results 1. What does TTX do to voltage-gated Na+ channels? Your answer: It
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Cardiac Care Nursing Occupations in the healthcare field will always be around‚ especially nursing occupations. Registered nurses provide patients care‚ educate patients and the public about different health conditions‚ and provide advice and support to patients and their family members. Some work in hospitals‚ physicians’ offices‚ healthcare services‚ and nursing homes. However‚ others work in correctional facilities‚ schools‚ or serve in the military. The average nurse makes about $66‚000 per year
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Medications for cardiac arrest * Epinephrine 1mg iv bolus every 3-5 mins * Vasopressin- alternative to epinephrine * Treatment for vf‚ vt‚ pea‚ asystole * Dose: 40 units iv single * Norepinephrine – for severe hypotension * For low total peripheral resistant * Dose 0.1-0.5 mcg/kg/min infusion * Not use for cardiac arrest * Dopamine – Dose: 2-20 mcg/kg/min infusion‚ titrate to patient response * Do not administer in same iv line as Na bicarb * Dobutamine
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Wall The heart is composed of cardiac muscle which enable the heart to contract and allow the synchronization of the heart beat. The heart wall is divided into three layers: the epicardium‚ myocardium‚ and endocardium. * Epicardium - outer protective layer of the heart. * Myocardium - muscular middle layer wall of the heart. * Endocardium - inner layer of the heart that is continuous with the inner lining of blood * Cardiac Conduction * Cardiac conduction is the rate at which
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