Use the 5 step process to decipher (decode, solve, interpret) the correct rhythm. 1. Rhythm Is the atrial (p-wave) rhythm regular or irregular? Is the ventricular (QRS) rhythm regular or irregular? 2. Rate What is the atrial rate? What is the ventricular rate? 3. P-wave Is the shape of the p-waves the same or different? Are the p-waves negative, positive, various, or absent? How many p-waves are there for each QRS waveform (written in a ratio format)? 4. PR interval: How wide is the PR interval? 5. ORS How wide is the ORS complex?

Use the 5 step process to decipher (decode, solve, interpret) the correct rhythm. 1. Rhythm Is the atrial (p-wave) rhythm regular or irregular? Is the ventricular (QRS) rhythm regular or irregular? 2. Rate What is the atrial rate? What is the ventricular rate? 3. P-wave Is the shape of the p-waves the same or different? Are the p-waves negative, positive, various, or absent? How many p-waves are there for each QRS waveform (written in a ratio format)? 4. PR interval: How wide is the PR interval? 5. ORS How wide is the ORS complex?

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter9: Cardiac Physiology

Section: Chapter Questions

Problem 12RE

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The heartbeat includes: a. the systole when the heart relaxes and fills. b. the diastole when the heart contracts and empties. c. pressure that causes the AV valves to open, filling the ventricles. d. rising pressure in the ventricles to open the AV valves and close the SL valves. e. the lub sound when the SL valves open and the dub sound when the AV valves close.
Visit this site (http://openstaxcollege.org/l/heartvalve) to observe an echocardiogram of actual heart valves opening and closing. Although much of the heart has been removed from this gif loop so the chordae tendineae are not visible, why is their presence more critical for the atrioventricular valves (tricuspid and mitral) than the semilunar (aortic and pulmonary) valves?
1. The ventricles begin to contract during what phase: 2. The ventricular volume does not change during these 2 phases (it is “fixed”), which are: 3. At the point where the mitral valve closes, two things occur. One is the closure of the mitral valve; what is the other? 4. This period (or phase) ends with the closure of the semilunar valve. What is it? 5. The pressure drops during this phase to a point low enough for the AV valve to open. 6. At the point when the aortic valve closes, something also happens, which is represented on the aortic waveform. What is this? 7. You start to see an increase in the final diastolic ventricular pressure at the end of this phase. What is this phase on the Wiggers? 8. What is this increase in pressure in the ventricle from? 8. What signifies the start of the ejection phase? (Or what causes the ventricle to eject?) 9. What is the difference between the end-systolic volume and the end-diastolic volume called? 10. During which 2 phases are all four heart…
Which represents time for the passage of the electrical impulse through the atrium, causing atrial depolarization. Which represents time for depolarization of both ventricles. Which represents time for ventricular repolarization. Which represents the time taken for the entire electrical depolarization and repolarization of the ventricles. ["QRS complex", "T wave", "P wave" , "P-R interval", "QRS interval", "ST segment", "QT interval"
6. Describe the mechanical events of the cardiac cycle (as in Figure 14.18a), including isovolumic ventricular contraction and isovolumic ventricular relaxation (pressure- volume curve of left ventricle, Figure 14.18b). What causes valves to open and close during a cardiac cycle?
14. Rate: Rhythm: Workbook #2 - Cardiac H www Conduction: P-P atrial rhythm regular? R-R ventricular rhythm regular? Ectopic Beats: bpm All waves present? Yes/No, missing. PR interval: (>5?) Name: QRS: (> 3?) ST segment: normal/elevated/depressed Twave: normal/spiked/inverted A Fib PACS? Yes/No PVCs? Yes/No #14. Interpretation: Yes/No Yes/No الستين الله Date: احمد
Looking at the wiggers diagram Why doesn’t blood volume change during isovolumetric ventricular systole?
As a result of ventricular depolarization (T wave), calcium ions are returned to the sarcoplasmic reticulum and ventricular muscles relax. As the myocardium relaxes, the semilunar valves close. At this time which of the following is true? Group of answer choices (A) ventricular pressure > aortic pressure > atrial pressure (B) atrial pressure > ventricular pressure > aortic pressure (C) aortic pressure > ventricular pressure > atrial pressure (D) aortic pressure > atrial pressure > ventricular pressure
High pressure in the systemic and pulmonary circuit often results in ventricular hypertrophy in which the ventricle enlarges to pump against the greater force. Which side(s) of the heart would affected by high pressure in the pulmonary circuit? Which side(s) of the heart would be affected by high pressure in the systemic circuit? Could you explain this answer? Thank you
6. Describe the parts of the electrocardiogram (ECG) and explain how these electrical events are related to the mechanical events of the cardiac cycle. Reference the Wigger’s diagram. Start at the P-wave and go through to the T-wave. Make sure to clearly state what each wave, interval, and segment represent. Make sure to clearly state the general rule concerning the timing of electrical and mechanical events as well as give specific examples. Mention P wave, QRS complex, T wave, PR interval, R-R interval, PR segment, ST segment, conduction system of the heart, autorhythmic cardiac cells, contractile cardiac cells, depolarization, repolarization, atria, ventricles, atrioventricular node.
If the pressure in the ventricles is higher than the pressure in the atria, but lower than the pressure in the great arteries, which of the following is true? a-semilunar valves will be closed, but the atrioventricular valves will be open, ventricles will be filling b-both the atrioventricular and semilunar valves will be closed and there will be no flow of blood c-both the atrioventricular and semilunar valves will be open and there will be flow through the ventricles d-the atrioventricular valves will be closed, but the semilunar valves will be open, ventricles will be ejecting blood
1. In the flow chart provided below, label the structures that lie along the path of blood flow in the heart OR make a similar diagram of your own showing the path of blood in a linear fashion. The top row of boxes (blue) refer to the right side of the heart (unoxygenated blood) and the bottom row of boxes (red) refer to structures in the left side of the heart (oxygenated blood.) (b) 2. Label all the structures indicated by the lines in the diagram below.