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This sound, also called Hamman’s sign, tells your doctor that air is trapped in the space between your lungs (called the mediastinum). It’s a crunchy, scratchy sound, and it happens in time ...
2024年2月11日 · An electrocardiogram, also called an ECG or EKG, is a simple and painless test that measures the electrical impulses of your heart to check for signs of heart disease. It's done through small ...
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- Function
- Causes
A ruptured eardrum, like a clap of thunder, can happen suddenly. You may feel a sharp pain in your ear, or an earache that you've had for a while suddenly goes away. It's also possible that you may not have any sign that your eardrum has ruptured. A ruptured eardrum -- also known as a perforated eardrum or a tympanic membrane perforation -- can lea...
The eardrum serves two important functions in your ear. It senses vibrating sound waves and converts the vibration into nerve impulses that convey the sound to your brain. It also protects the middle ear from bacteria as well as water and foreign objects. Normally, the middle ear is sterile. But when the eardrum is ruptured, bacteria can get into t...
A number of things can cause the eardrum to rupture; one of the most common causes is an ear infection. When the middle ear is infected, pressure builds up and pushes against the eardrum. When the pressure gets too great, it can cause the eardrum to perforate. When that happens, you may suddenly notice that the pain and pressure you've felt from th...
2023年11月28日 · An alanine aminotransferase (ALT) test can show whether you have a liver disease or injury. Learn how this test works and how it can help your doctor diagnose you.
2024年3月19日 · A complete blood count (CBC) is a test that counts the cells that make up your blood: red blood cells, white blood cells, and platelets. Your doctor may order a CBC as part of a routine checkup or ...
2022年2月5日 · Many conditions or health problems can cause sudden confusion, and some are more serious than others: They include: Alcohol or drug abuse. Carbon monoxide poisoning. Very low amounts of sodium or ...
2020年8月17日 · There are separate growth charts for weight, height, and head circumference. These simply represent the average weight, height, or head circumference of a bunch of normal children. You will see ...
