One of the things you are going to quickly discover when you are shopping for a fetal doppler is that most of them operate in pretty much the 
exact same way. After applying ultrasound jelly to your abdomen, you slide the fetal doppler probe over your abdomen as you search out the heartbeat of your unborn baby, all the while listening through headphones. It sounds very simple, but some people report having difficulties when using these devices for the first time. Below, you will find two fetal doppler tips that will help make them easier to use.
Use Them With a Full Bladder
Before you sit down to use your fetal doppler, it is important that you make sure beforehand that your bladder is full. You may recall that when you visit the doctor to have an ultrasound done, you are usually asked to come to the office with a full bladder. This is done for two reasons. The first reason is that a full bladder physically pushes the uterus into a position where it is more readily accessible by scanning equipment. The second reason is due to the manner in which fetal dopplers work. Fluid helps transmit sound waves, so a full bladder assists the baby heart beat monitor by allowing the sound waves to be more easily transmitted.
Use A Fetal Doppler With The Right Frequency
In the doctor’s office, the doctor generally will use ultrasound equipment operating at a frequency of 3 MHz. For this reason, most home fetal dopplers operate at this same frequency. If you are very tall or overweight, however, there is a better option for you. Fetal doppler units that operate instead at a frequency of 2 MHz are available, and the longer wavelength makes them much more effective for these kinds of women.
For more information about fetal dopplers, how to use them and how to pick the best model for you, visit the Baby Heartbeat Monitor Guide.
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