while a typical ECG tracing is shown, many things can alter and be perfectly normal for that individual. list some of the factors that change the standard tracing:.......?
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while a typical ECG tracing is shown, many things can alter and be perfectly normal for that individual. list some of the factors that change the standard tracing:.......?
Electrocardiogram is simple type of test which can measure the activity of heart.
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- The ST segment in the EKG is typically quiet and on the isoelectric line (like the T-P segment). What is happening during the ST segment in the EKG such that we see no waves? a) There is no electrical activity happening in the ventricles between the S and T waves b) The heart is relaxed and filling with blood c) The ST segment is representative of the plateau of the many ventricular action potentials happening at that point d) There is no longer Na+ influx during the ST segment so no waves are visible e) The ST segment is during ventricular repolarization and repolarization is not seen on the EKGWhich of the following is most likely to be present on the resting EKG recording of a patient with AV node damage?A) An R-R interval of 0.52 seconds at rest.B) A P-R interval of 0.28 seconds at rest.C)An inverted T waveD) Normal sinus rhythmA variety of ways to calculate heart rate from an ECG may be used. The quickest way to calculate heart rate on a rhythm strip is: Count the number of large squares between one R-R interval, and divide this number into 1500. Calculate the number of QRS complexes in 1 minute Count the number of R-R intervals in 6 seconds, and multiply by 10 Count the number of small squares between one R-R interval, and multiply this number by 300.
- A patient’s ECG tracing shows a consistent pattern of two P waves followed by a normal QRS complex and T wave. What is the cause of this abnormal wave pattern?10. An EKG with a higher QRS complex than normal... A)None of these are true B)Must mean that the end diastolic volume is higher C)Must mean that the ventricular contraction is stronger than normal D)Must mean that the person is exercising and innervating more cardiomyocytes E)Must mean that atrial repolarization is smaller than usual so we see more ventricular repolarizationSelect the FALSE statement: /////////////////www. OA) This abnormal ECG results in increased stroke volume O B) In this abnormal ECG, the ventricles are not stimulated to contract by the SA node, the natural pacemaker. of the heart O C) This abnormal ECG is compatible with life so far as the individual does not engage in strenuous activities OD) This abnormal ECG results in decreased in CO OE) None of the above
- The exact cause of blood clotting in the left atrium of the heart during atrial fibrillation (AF) is not known. In part it might be due to blood stasis (not moving) or it may result in combination with endothelial cells damage. (A) What are the potential mechanisms that might drive clotting and what markers might you look for in the blood to predict potential risk? (B) Other than treating the arrhythmia, what other pharmacological intervention might be provided to AF sufferers?Unlike the discrete waveform from an electrocardiogram, the electromyogram waveform is irregular. Why do you suppose this is?what is reference node in ECG? what is its significance? placement of reference node?
- a) Electrocardiogram signal is shown In Figure 2. Figure 2 Discuss the physiological changes happened In: P wave I1) PR Interval I) ORS Interval ST IntervalI 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.a) Define a J unctional Tachycardia. b) What is happening to the cells in the AV junction that leads to a Junctional Tachycardia?