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Bookmark or Share- Atrial Fibrillation - Diagnosis - NHLBI, NIHTo diagnose atrial fibrillation, your provider will likely do one or more heart or blood tests. Electrocardiograms, or EKGs, record your heart’s electrical activity. Data from your pacemaker or implanted defibrillator, if you have one, may also be helpful. If the diagnosis is unclear from the EKG or if more information is needed, your ...
- Atherosclerosis - Diagnosis - NHLBI, NIHAn electrocardiogram, also called an ECG or EKG, is a simple, painless test that detects and records your heart's electrical activity. An ECG can show how fast your heart is beating, check your heart's rhythm, and assess the electrical impulses passing through each part of your heart. For an ECG, you will lie on a table.
- Asthma - Diagnosis - NHLBI, NIHLung function tests measure how well you can breathe in and out: Spirometry measures how much air you breathe out and how fast. Some people feel lightheaded or tired from the breathing effort for this test. Peak expiratory flow (PEF) tests measure how fast you can blow air out using maximum effort. The test can be done during spirometry or with ...
- Stroke - Diagnosis - NHLBI, NIHA brain CT scan can show whether there is bleeding in the brain or damage to the brain cells from a stroke. Magnetic resonance imaging (MRI) uses magnets and radio waves to create pictures of your brain. An MRI may be used instead of — or in addition to — a CT scan to diagnose a stroke. This test can identify changes in brain tissue and ...
- Sleep Apnea - Diagnosis - NHLBI, NIHBlood tests check the levels of certain hormones to check for endocrine disorders that could contribute to sleep apnea. thyroid hormones tests can rule out hypothyroidism. Growth hormone tests can rule out acromegaly. Total testosterone and dehydroepiandrosterone sulphate (DHEAS) tests can help rule out polycystic ovary syndrome (PCOS).
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