…resistant to resolution. Known predictors of cardiac arrest The only risk biomarker in genuinely widespread use is left ventricular ejection fraction (LVEF), measured by echocardiography…

…precipitating state resolves. The distinction is therefore not based on the BP value alone: Feature Hypertensive emergency Hypertensive urgency BP Often ≥180/110 mmHg; no…

…patients whose initial findings are less definitive. The defining electrocardiographic feature is the absence of persistent ST segment elevation. This does not imply low risk…

…or electrical instability are absent. A resting transthoracic echocardiogram is useful before stress testing when previous echocardiographic information is unavailable. It may identify significant valve…

…Imaging (coronary CT angiography, myocardial perfusion scintigraphy, stress echocardiography) has greater diagnostic accuracy. Contraindications Absolute: Acute coronary syndrome within 48 hours, or ongoing unstable angina…

…energy consumption at rest (sitting). METs may be used to describe the functional capacity during exercise stress testing. Results of treadmill tests are typically described…

…Patients with previous acute coronary syndromes (ACS) Exercise stress testing is routinely performed after acute myocardial infarction in order to assess the presence of myocardial…

…detail. Symptom during exercise stress testing Perceived exertion The patient's perceived exertion is a way of estimating the intensity of the physical activity. It…

…during exercise testing (exercise ECG). Indications for exercise stress test Indications have been discussed in Introduction to Exercise ECG. The most common indications are as…

…Thus, the clinical utility of exercise stress testing is immense and the procedure may be used in numerous situations, ranging from health screening to assessment…