Don't be intimidated by this important ECG measurement. This cardiologist describes four methods for easily calculating the mean electrical axis and discusses what the abnormalities you may find signify.Deborah M. Fine, DVM, MS, DACVIM (cardiology)...
most commonly with a clip device to determine the ratio of oxygen saturated hemoglobin to total hemoglobin. This measurement is used to tell how well red blood cells are transporting oxygen from the lungs to other parts of the body. Normal SpO2levels...
In this patient population, the higher percentage changes in ES-GLS are mainly due to the lower absolute values of ES-GLS. The lack of available data makes it very difficult to determine the clinical relevance of a certain measurement error in regional strain measurements. We assume, however, ...
There are several diagnostic algorithms to determine the site of origin using the 12 lead ECG [29, 30]. QT prolongation and torsades de pointes (Tdp) polymorphic VT The patients who are admitted to the ICU/CCU usually have several risk factors that can predispose them to QT prolongation and...
What would happen to the ECG trace if the subject sneezed or laughed during a recording? Why? Describe the characteristic of the lymph nodes associated with chronic inflammation. Include patient examples with intervention needed. Determine whether the following is a clinic...
The limb leads record the ECG in the coronal plane, and so can be used to determine the electrical axis (which is usually measured only in the coronal plane). The limb leads are called leads I, II, III, AVR, AVL and AVF. Figure 2 shows the relat...
There are several diagnostic algorithms to determine the site of origin using the 12 lead ECG [29, 30]. QT prolongation and torsades de pointes (Tdp) polymorphic VT The patients who are admitted to the ICU/CCU usually have several risk factors that can predispose them to QT prolongation and...
In the case of severe epicardial spasm, it may not be possible to determine whether microvascular spasm coexists. Reflecting the role of the right coronary artery to supply the sinus and atrioventricular nodes (or circumflex in left-dominant anatomy), transient bradycardia commonly occurs. Given ...
Answer to: How does the ECG vary and what is occurring during these conditions: junctional rhythm, second degree heart block and ventricular...
The first 3 human trials with the Farapulse PFA system (IMPULSE, PEFCAT, and PEFCAT II)1,4 were designed to allow continuous changes of the ablation settings to determine the optimal pulsed field waveform, configuration, and number of applications. Over time, with use of the optimized biphasic...