6347 results found
Medical tests
… recent infection, find out if an HIV infection is present when antibody test results were uncertain, and screen blood … is done to: Detect an HIV infection. Screen blood, blood products, and organ donors to prevent the spread of HIV. Screen … is done to: Detect an HIV infection. Screen blood, blood products, and organ donors to prevent the spread of HIV. Screen …
Health topics
… breathe compressed air. Pressure changes can cause injuries when you drop down into the water (descend) and come back up … There are three kinds of injuries from pressure changes when diving: Barotrauma. Tissues near the air-filled spaces … Often called "the bends," decompression sickness happens when a scuba diver ascends too quickly. Divers breathe …
Health topics
… fraction (HFrEF) is a type of heart failure. It happens when the heart's lower left chamber (left ventricle) doesn't … enough during systole, which is the phase of your heartbeat when your heart pumps blood. So the amount of blood being … out with each heartbeat. You may be diagnosed with HFrEF when the ejection fraction is 40% or less. You may be …
Medical tests
… between the heart and other structures in the chest when the heart beats. Some diseases cause fluid to collect … few hours. How It Feels You will feel a brief stinging pain when the local anesthetic is injected. When the needle is inserted into the pericardial sac, you …
Health topics
… ideas. Balance work and personal life. Unplug from work when you're home. For example, try not to check company email when you're off work or spending time with friends and … You can do this by turning off email and text alerts when you leave work. Or set your phone to "do not disturb" …
Medical tests
… produced by cells, called G cells, in the stomach lining. When food enters the stomach, G cells trigger the release of … acid (gastric acid) that helps break down and digest food. When enough gastric acid has been produced by the stomach, … at 30 minutes after the secretin injection. How It Feels When a blood sample is taken, you may feel nothing at all …
Health topics
… the symptoms of degenerative disc disease in some people. When the discs break down, they can lose fluid and dry out, … depends on which discs are affected. Pain that gets worse when you move, such as when you bend over, reach up, or twist. Pain that may occur …
Health topics
… DBS is used to relieve symptoms of Parkinson's disease when they can't be controlled by medicines. But it can also … symptoms of Parkinson's disease , especially tremor, when they can't be controlled with medicine. It's the … between "on" and "off" time and dyskinesia . "On" time is when medicine taken for Parkinson's is helping your …
Health topics
… You may notice enlargement of your scrotum. Symptoms, when present, can include pain, swelling, or redness of the … Hydroceles are not usually dangerous and are treated only when they cause pain or embarrassment or when they decrease the blood supply to the penis (rare). …
Health topics
… child at all times. Always hold onto your toddler’s hand when on a dock or near a pool - your toddler might suddenly … wearing a lifejacket you still need to watch her carefully. When buying a child sized lifejacket, check the labels for …
