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.
Ultrasounds Often Used to Determine Pregnancy. The most common reason for a dog to get an ultrasound related to pregnancy is to actually confirm if the dog is pregnant. Ultrasounds can detect gestational sacs as early as 18 days past ovulation.By day 23, the first heartbeat is usually seen.he most common reason for a dog to get an ultrasound related to pregnancy is to actually confirm if the dog is pregnant. Ultrasounds can detect gestational sacs as early as 18 days past ovulation.