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.
How early can an ultrasound detect a heartbeat? I am 25, and seven weeks pregnant with my first child. I just yesterday got an ultrasound, and no heartbeat was detected. Shouldn't there be a detectable heartbeat by now? This has me worried sick. The doctor said I should come back in a week for another ultrasound. What should I expect?