the graphs below are the ones i need to be interpreted and compared Introduction
ID: 3476145 • Letter: T
Question
the graphs below are the ones i need to be interpreted and compared
Introduction: Electrocardiography (ECG) is the recording of electrical signals from the surface of the body to reflect the activity of the heart. ECG is a test performed to detect problems with the heart. How is ECG generated? In living animals, there are excitable cells, such as nerve cells, muscle cells, etc. These cells can generate a small electric signal (action potential) when stimulated (Figure 1, left). The signal consists of depolarization, repolarization, and, sometimes, hyperpolarization segments (Figure 1, right). The y-axis indicates membrane potential, the difference in electric potential between the interior and the exterior of the cell. Normally, cell resting potential is at around -50mV to -70mV. action potential +30 Depolarization Electrodas Na resting potential Na Time Figure 1: Nerve impulses with external stimulation Heart cells are a type of muscle cells, which are excitable. During each heartbeat, a healthy heart goes through an orderly progression of depolarization, which starts with pacemaker cells in the sino-atrial node and spreads out through the atrium, it then passes through the atrio-ventricular node down into the bundle of His and into the Purkinje fibers, and finally reaches to the entire ventricles (Figure 2). This orderly pattern of depolarization gives rise to the characteristic ECG trace, consisting of P, QRS complex and T wavesExplanation / Answer
Ecg-1 is psvt (paroxysomal supraventricular tachycardia).
Premature p wave , broad qrs complex, short pr interval that signify psvt.
Ecg -2 is of ventricular tachycardia where premature qrs complex present there is also premature beat.in ventricular tachycardia presense of fusion beat.
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