Electrocardiography Lab Report

Likewise, Blood flows from the right atrium to the right ventricle, and then is pumped to the lungs to receive oxygen. From the lungs, the blood flows to the left atrium, then to the left ventricle, forming the complete circulation.

Electrodes must be placed in the correct landmarks to prevent misinterpretation of the ECG. If the electrodes are placed incorrectly, the ECG may read as ST changes, electrical axis, location of bundle branch blocks and location of infarcts (Riddle, 2008, para. 5). During the ECG, a total of 10 electrodes are applied to the patient. Six electrodes (V1-V6) are placed on the anterior chest in the proper anatomical landmarks, and these leads must be placed precisely for an accurate ECG interpretation. Electrodes V1 and V2 are placed on the fourth intercostal space with V1 on the right and V2 on the left (Riddle, 2008). Electrodes V3-V6 are placed on the left chest wall on the fifth intercostal space in the following order: V3 to the right of V4, V4 at the midclavicular line, V5 to the right of V6, V6 to the midaxillary line (Riddle, 2008). The remaining four electrodes are placed on both upper and lower extremities without touching the chest.

The direction blood flows from the heart to lungs and back to the heart: Deoxygenated blood enters the heart through the right atrium. The contraction of the right atrium forces blood through the atrial ventricular valves known as the tricuspid and bicuspid valves. Once the atria fills up, the valves open, and blood is able to pass through the right ventricle. The right ventricle contracts to force blood into the pulmonary semi lunar valve into the pulmonary lunar artery. The blood travels through the pulmonary arteries to the lungs to get oxygenated. Once it gets oxygenated, it then returns back to heart through pulmonary veins, then the left atrium, then through the bicuspid valve to the left ventricle, then through the aortic semi lunar valve, then to all the tissues of the

The ECG halter monitors for , your pacemaker or difribulator activity, if medications are controlling your symptoms involving abnormal rythems, how your heart is during rest, evaluates your symptoms and see if it involves the heart and it picks up abnormalities in your beat or rhythm.

Measure the test person’s heart rate(age 14-63), before giving them anything, and record it on paper. Make sure that they are not moving, just sitting.

The journey of the blood through the heart begins at the point when deoxygenate blood returning from the body is entering the hearts via the superior and inferior vena cava. From the right atrium the blood passes to the right ventricle via tricuspid valve. At this point ventricular contraction begins and forcing blood out of right ventricle via opened the semilunar valve. Blood is further pumped to the lungs via the pulmonary arteries. In lungs, blood collects oxygen and release the CO2. Oxygenated blood is returning to the left atrium through pulmonary veins and is carried to the left ventricle through biscupid valve. When contraction of heart happens again the blood from left ventricle is forced to the aorta and leaves the heart. Blood circulates

Since measurements had to be done manually by a cursor using the ECG displayed on screen, due to human error the procedure cannot be considered very precise, especially for measuring the intervals for ECG waves representing increased heart rates because some T waves overlapped and fused with a subsequent P wave.

The circulation of blood starts off in the superior vena cava and goes into the right atrium, it then goes through the tricuspid valve into the right ventricle, through the pulmonary valve into the pulmonary artery , into the lungs and in the left atrium into the left ventricle to the aorta and to the rest of the body.

An electrocardiogram can be used to record activity during the cardiac process of pumping and returning blood to the body and heart because of the electric current that spreads through the tissue of the heart and to the surface of the body. By

The heart is a vital organ that pumps oxygenated blood to the whole body by repeated rhythmic contractions, and continued heart beats are essential for the body to live. The heart is an electromechanical pump, the electrical activity of the heart acts to trigger and synchronise mechanical contractions. The heart’s natural pacemaker initiates electrical activity that spreads in the ventricles as shown in Figure 1.1 (a), which shows activation isochrones for the human ventricles [1]. The electrical activity of the heart can be recorded using electrocardiogram (ECG); Figure 1.1 (b) shows the ECG recording for the normal heart rhythm where each beat is registered as a single event.

I had in 23rd of February 2016 an online exercise, and it was about performing a cardiovascular assessment. Practical Session has contained four seniors, and it was illustrated patients complain about past medical history with ECG strip for each patient. First of all, when I have seen the test I was in shocked, Although have had good experiences but it is far away from patient care centered for more than seven years, so I need to refresh my memories. The great things that were before answering this test there are useful books which names as ECG Interpretation made Incredibly Easy that makes me more relax and quite. I started to read the book but was slightly hard to know analysis tow of the sessions. Secondly, I take the time to read

Observe and document the patient’s response to activity. Evaluate the patient’s response to walking for several minutes observing HR, BP and O2 saturation. If patient demonstrates good outcome, progress to observing stair climbing.

At the start of each heartbeat, blood returning from the body and the lungs fills the heart 's two upper chambers. The mitral and tricuspid valves are located at the bottom of these chambers. As the blood builds up in the upper chambers, these valves open to allow blood to flow into the lower chambers of your heart. After a brief delay, as the lower chambers begin to contract, the mitral and tricuspid valves shut tightly. This stops blood from flowing backward. As the lower chambers contract, they pump blood through the pulmonary and aortic valves. The pulmonary valve opens to allow blood to flow from the right lower chamber into the pulmonary artery. This

Blood enters the right heart through a chamber that is called the right atrium. The right atrium is another word for “entry room”. Since the atrium is right above the right ventricle -which is the part that pumps oxygen lacking blood to the lungs-, a contraction pushes the tricuspid valve into the right ventricle. The tricuspid is made up of three things that allow blood to travel from top to bottom in the heart and it closes to prevent the blood from backwashing back to the right

To obtain the most accurate reading, the device must be placed directly over the heart where the heart pulse and respiration expansion will be the greatest. There are many different ways to secure this device to the body. It has been decided the best way to secure the device onto the body is to secure the device onto nylon which will be wrapped around the person’s chest and strapped on the back. The nylon will fit itself onto the person’s body to obtain an accurate reading with minimum outside interference even when the user is active. The components of the device must move