infer (推断),indicate(象征, 暗示),imply(暗示),suggest( 暗示).conclude(作出结论),assume(假定,设想)等词。 主要设题方式有: It can be inferred from the passage that___. The author strongly suggests that___ It can be concluded from the passage that___. The writer implies but not directl...
CHD is typically diagnosed using a combination of coronary angiograms, electrocardiograms (ECGs), stress tests and echocardiograms. An angiogram is an x-ray of the arteries that helps to show any blockages. An ECG is a test that measures the electrical activity of the heart and can indicate ...
An ECG test monitors your heart’s electrical activity and displays it as moving line of peaks and dips. It measures the electrical current that runs through your heart. Everybody has a unique ECG trace but there are patterns of an ECG that indicate various heart problems such as arrhythmias....
Recognizing the need for rehab can be a challenging journey. Many people struggle to identify the signs that indicate it’s time for professional help. Whether you’re concerned about yourself or a loved one, understanding these warning signs is crucial. From physical dependence to emotional shifts...
What is an ECG? What does a normal ECG indicate? In what part of the cardiac cycle is the heart completely relaxed? At the beginning of ventricular systole During ventricular systole Between diastole and systole Mid-to-late diastole After diastole ...
What would cause a thready pulse? The most common causes for a weak or absent pulse arecardiac arrest and shock. Cardiac arrest occurs when someone's heart stops beating. Shock happens when blood flow is reduced to vital organs. This causes a weak pulse, rapid heartbeat, shallow breathing,...
Dielectric absorption, also referred to as “soakage”, refers to energy storage within a capacitor’s dielectric that is absorbed and released on a longer time scale than would be predicted by the device’s nominal capacitance and ESR. In the lumped-element model, it can be represented as ...
If the vagal nerves were cut to the heart, why would your heartbeat increase by more than 25 bpm? What is borderline myocardial ischemia? What is the importance of a prolonged cardiac refractory period? What might an abnormal increase in venous pressure indicate?
The available data clearly indicate that HF affects the Asian population at younger ages than its Western counterparts (Table 2). A male predominance is clear; however, whether this finding is associated with women not receiving the necessary attention and care is a matter of debate. The signific...
How would heart function be affected if the AV valves did not completely close during ventricular contraction? What is the cardiac cycle in the heart? What happens during the isovolumic phase of ventricular systole? The normal pacemaker of the heart is the ___. What...