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.
It can show if your baby is getting enough oxygen. The ultrasound can show the heart but you won't be able to hear it. You are in the phase of pregnancy when the fetal heart beats can be heard for the first time. The doctor will use the Doppler instrument to detect the heart beats.