Arterial Blood Gases. Test Overview. An arterial blood gas (ABG) test measures the acidity (pH) and the levels of oxygen and carbon dioxide in the blood from an artery. This test is used to check how well your lungs are able to move oxygen into the blood and remove carbon dioxide from the blood.
Stethoscope it s the medical definition and terms used by doctors it s used to listen to your heart beat/ Rythem in heart beat and checking all is ok if you have a steady heart beat with them or if there is any signs of all of an irregular heartbeat...
Most women first hear their baby's heartbeat during a routine checkup that uses the fetal Doppler early in their pregnancy. Many ultrasound machines also allow the heartbeat to be heard even before it can be heard with a handheld Doppler. Most women now get an ultrasound prior to 12 weeks. What the Test Does. The fetal Doppler uses sound waves to pick up your baby's heartbeat. How the Test Is Done. You'll lie down and a technician will hold a small probe against your belly. It's safe and painless. Some companies sell Dopplers for use at home. The FDA suggests that you avoid them. Although Dopplers are generally safe, using them too much -- without medical supervision -- could pose risks to your baby.