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...
1 Your doctor can use a Holter monitor to keep track of your heart function if youâre having heart problems or they think there may be a problem.  Make sure to engage in your normal activities and keep the Holter monitor dry while your heart is being monitored.