1- What is the proper lead placement for a 3-lead ECG ? 2- How to identify...
1- What is the proper lead placement for a 3-lead ECG ?
2- How to identify a heart with a valve replacement on an isolated specimen?
3- How to calculate HR from and ECG?
Homework Answers
1. ANSWER: FIRST LEAD: Red electrode is to be placed under right clavicle, near right shoulder, within the rib cage frame.
SECOND LEAD: Yellow electrode is to be placed under left clavicle, near left shoulder, within the rib cage.
THIRD ELECTRODE: Green electrode is to be placed on the left side below pectoral muscles, lower edge of left rib cage.
2. ANSWER: Mostly the heart valves after a valular surgery will be replaced by a prosthetic ones. By that one can identify the heart with a valve replacement.
3.ANSWER: In an ECG heart rate can be calculated by the interval between two successive QRS complex.
Add Answer to:
1- What is the proper lead placement for a 3-lead ECG ?
2- How to identify...
Identify what colors corresponds to each lead placement P wave: 1. Indicates? 2. Normal interval: 3....
Identify what colors corresponds to each lead placement P wave: 1. Indicates? 2. Normal interval: 3. Abnormal P waves indicates what disease process? QRS wave: 1. Indicates? 2. Normal interval: 3. Abnormal QRS waves indicates what disease process? T wave: 1. Indicates? 2. Normal interval: 3. Abnormal T waves indicates what disease process?
Answer the following questions related to the cardiac cycle and lead placement. 1.Describe the purpose of...
Answer the following questions related to the cardiac cycle and lead placement. 1.Describe the purpose of the electrocardiogram. 2.List the placement of the ten leads. 3.Describe how to prepare the patient for an electrocardiogram. 4.Where does the heartbeat originate? 5.Describe the cardiac cycle. 6.Define depolarization and repolarization. 7.Define systole and diastole. 8.What does the P wave represent? 9.What does the QRS complex represent? 10.What does the T wave represent? 11.What is an artifact related to the ECG? 12.Describe how to...
Which lead was used to collect the data for the ECG? Circle tile correct answer. Lead...
Which lead was used to collect the data for the ECG? Circle tile correct answer. Lead 1 /Lead2/Lead3 Complete the following table for ECG and heart sounds: 2 Calculate the heart rate for your subject using the following equation: 60 (sec. per min) /avg. heat period (sec/beat) = heart rate (beats/mm) Subject heart rate _________ beats/mm What does the R-S1 interval represent in the cardiac cycle? What is/are the electrical and mechanical events that occur during this interval of the...
Procedure 1 Interpreting an ECG You will now perform some basic ECG interpretation. Following are two...
Procedure 1 Interpreting an ECG You will now perform some basic ECG interpretation. Following are two tracings for which you will calculate the heart duration of key periods of the ECG. 1 Identify and label the P wave, QRS complex, T wave, P-R interval, R-R interval, and Q-T interval on Tracings 1 and 2 in Figure 11.27 Tracing 1 Tracing 2 FIGURE 11.27 ECG tracings 2 Cakulate the heart rate for each tracing, Are the values normal or abnormal? Heart...
leads or pictures D. 12-Lead ECG electrodes and lead wires create 2. The following questions refer...
leads or pictures D. 12-Lead ECG electrodes and lead wires create 2. The following questions refer to the bipolar or standard leads. a. What are names of the leads? b. The bipolar leads provide pictures of the plane of the heart. c. What electrodes and lead wires are used to create the bipolar leads? d. If you see an artifact on lead I, which two electrodes and lead wires should you look at? e. If you see an artifact on...
Procedure 1 Correlating Points on an ECG with Electrical Events of the Heart Let's start by...
Procedure 1 Correlating Points on an ECG with Electrical Events of the Heart Let's start by correlating the following points on the ECG with the electrical activity occurring in the heart Identify the electrical events taking place in cardiac cells at each of the six points int the ECG in Figure 19.8, and explain the events in the answer lines provided. Do remember though that the ECG shows only electrical events, not mechanical events. A heart can have electrical activity...
B. SHORT QUESTIONS Answer in the booklet provided. Ensure the correct numbering. A 2-lead electrocardiogram (ECG...
B. SHORT QUESTIONS Answer in the booklet provided. Ensure the correct numbering. A 2-lead electrocardiogram (ECG) trace below shows a progressive prolongation of PR interval (more than 0.2 sec) which result in a dropped QRS complex. PR PR PR PR 1. Which pathophysiological condition does the ECG trace above represent? 2. Br-adrenegic receptor blocker reduces blood pressure by inhibiting both the chronotrophic (affecting the heart rate) and inotropic (affecting contractility) effects on the heart however also decrease the release of...
AAAAA Label P. QRS, and Twaves on the ECG strip in Figure 4.5. Figure 1.5: ECG...
AAAAA Label P. QRS, and Twaves on the ECG strip in Figure 4.5. Figure 1.5: ECG strip. DETERMINE HEART RATE FROM AN ECG The range of normal heart rates is called normal sinus rhythm (NSR). In an average adult NSR is between 60 and 100 bpm. A heart rate below 60 bpm is called bradycardia. However, a highly acro bically conditioned persons often have a normal heart rate below 60 bpm. A heart rate above 100 bpm in an adult...
4. To interpret an ECG, we must look at the regularity of heart beats (regular, irregular),...
4. To interpret an ECG, we must look at the regularity of heart beats (regular, irregular), rhythm (sinus or other), heart rate, cardiac axis, duration, a description of the P wave, QRS complexes, Enlargement Figure 1-4. Standard graph paper measurements A Graph paper. conduction intervals. of one square of graph paper The ECG paper speed is 25 mm/sec. Calculate from the heart rate shown in the ECG tracing (a). Show your work. (3) a. b. Lead 1 ii) Which is...
Introduction to Electrocardiography Curriculum Name: Class: ECG Leads and Obtaining Rhythm Strips 1. What does an...
Introduction to Electrocardiography Curriculum Name: Class: ECG Leads and Obtaining Rhythm Strips 1. What does an electrocardiogram record? 2. Who invented the ECG and distinguished five deflections in a waveform? 3. In the diagram to the right place a circle around the waves produced in the atria. 4. In the diagram to the right place a square around the waves produced in the ventricles. 5. Leads pick up electrical activity from different 6. Which ECG, 3-lead or 12-lead, is the...
Identify what colors corresponds to each lead placement P wave: 1. Indicates? 2. Normal interval: 3. Abnormal P waves indicates what disease process? QRS wave: 1. Indicates? 2. Normal interval: 3. Abnormal QRS waves indicates what disease process? T wave: 1. Indicates? 2. Normal interval: 3. Abnormal T waves indicates what disease process?
Which lead was used to collect the data for the ECG? Circle tile correct answer. Lead 1 /Lead2/Lead3 Complete the following table for ECG and heart sounds: 2 Calculate the heart rate for your subject using the following equation: 60 (sec. per min) /avg. heat period (sec/beat) = heart rate (beats/mm) Subject heart rate _________ beats/mm What does the R-S1 interval represent in the cardiac cycle? What is/are the electrical and mechanical events that occur during this interval of the...
Procedure 1 Interpreting an ECG You will now perform some basic ECG interpretation. Following are two tracings for which you will calculate the heart duration of key periods of the ECG. 1 Identify and label the P wave, QRS complex, T wave, P-R interval, R-R interval, and Q-T interval on Tracings 1 and 2 in Figure 11.27 Tracing 1 Tracing 2 FIGURE 11.27 ECG tracings 2 Cakulate the heart rate for each tracing, Are the values normal or abnormal? Heart...
leads or pictures D. 12-Lead ECG electrodes and lead wires create 2. The following questions refer to the bipolar or standard leads. a. What are names of the leads? b. The bipolar leads provide pictures of the plane of the heart. c. What electrodes and lead wires are used to create the bipolar leads? d. If you see an artifact on lead I, which two electrodes and lead wires should you look at? e. If you see an artifact on...
Procedure 1 Correlating Points on an ECG with Electrical Events of the Heart Let's start by correlating the following points on the ECG with the electrical activity occurring in the heart Identify the electrical events taking place in cardiac cells at each of the six points int the ECG in Figure 19.8, and explain the events in the answer lines provided. Do remember though that the ECG shows only electrical events, not mechanical events. A heart can have electrical activity...
B. SHORT QUESTIONS Answer in the booklet provided. Ensure the correct numbering. A 2-lead electrocardiogram (ECG) trace below shows a progressive prolongation of PR interval (more than 0.2 sec) which result in a dropped QRS complex. PR PR PR PR 1. Which pathophysiological condition does the ECG trace above represent? 2. Br-adrenegic receptor blocker reduces blood pressure by inhibiting both the chronotrophic (affecting the heart rate) and inotropic (affecting contractility) effects on the heart however also decrease the release of...
AAAAA Label P. QRS, and Twaves on the ECG strip in Figure 4.5. Figure 1.5: ECG strip. DETERMINE HEART RATE FROM AN ECG The range of normal heart rates is called normal sinus rhythm (NSR). In an average adult NSR is between 60 and 100 bpm. A heart rate below 60 bpm is called bradycardia. However, a highly acro bically conditioned persons often have a normal heart rate below 60 bpm. A heart rate above 100 bpm in an adult...
4. To interpret an ECG, we must look at the regularity of heart beats (regular, irregular), rhythm (sinus or other), heart rate, cardiac axis, duration, a description of the P wave, QRS complexes, Enlargement Figure 1-4. Standard graph paper measurements A Graph paper. conduction intervals. of one square of graph paper The ECG paper speed is 25 mm/sec. Calculate from the heart rate shown in the ECG tracing (a). Show your work. (3) a. b. Lead 1 ii) Which is...
Introduction to Electrocardiography Curriculum Name: Class: ECG Leads and Obtaining Rhythm Strips 1. What does an electrocardiogram record? 2. Who invented the ECG and distinguished five deflections in a waveform? 3. In the diagram to the right place a circle around the waves produced in the atria. 4. In the diagram to the right place a square around the waves produced in the ventricles. 5. Leads pick up electrical activity from different 6. Which ECG, 3-lead or 12-lead, is the...
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