What is the gold standard diagnostic test for pulmonary embolism? A. Chest X-ray B. Electrocardiogram (ECG) C. Computed tomography pulmonary angiography (CTPA) D. Pulmonary function tests 相关知识点: 试题来源: 解析 c) Computed tomography pulmonary angiography (CTPA) 反馈 收藏 ...
The standard 3-week inpatient regime in the Airedale Allergy Centre for investigation of chronic symptoms involves a 5-day fast, followed by three single-food challenge meals a day. Endpoint titration [1] is used to curtail adverse reactions, and to test inhalants and chemicals. In 19 ...
1. If the two false-positive samples are all near the positive control tube, it can be inferred that it is caused by improper sample adding operation. 2. There are several positive results in a certain batch of test results, and the retest is still positive, but it is negative in other...
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The main tests are: Viral load. This is the gold standard for tracking your HIV treatment. It’s the amount of HIV in your blood. The goal of your treatment is to make it so low that it’s undetectable. That means you have too few viruses for tests to pick up, and that you can...
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Any factors that influence the hormonal pulsing in your brain can influence your ovulation. Can I track exactly when I have ovulated? For some people, like those trying to conceive, it is important to know when you are ovulating. Among medical professionals, the ‘gold standard’ test for ...