Spirometry is the most common lung function test. It measures how much and how quickly you can move air out of your lungs. You breathe into a mouthpiece attached to a machine called a spirometer. The machine records your results.
Confirming the presence of your babyâs heartbeat. You may have gone to your doctor with vaginal bleeding or you may be anxious because of problems in a previous pregnancy (such as miscarriage). This ultrasound can routinely detect a heartbeat in your baby as early as 6-7 weeks.
While it may be possible to detect a pregnancy as early as 5 1/2 weeks. Because the tiny sac containing the baby and its heart is so tiny, an ultrasound may not be able to detect pregnancy at this stage. If the baby can be seen at 6 to 7 weeks, their heart beat may even be detected. Between 7 and 8 weeks, the baby and their heart beat can both be detected relatively easily. After the 8th week of pregnancy the heart beat and the baby can be clearly seen.