How to Take Your Own Pulse With a Stethoscope

You will also need something to keep track of time with in seconds. A watch with a second hand is much easier than a digital watch because you do not have to count the seconds, you can just look at where the second hand should end up on your watch at the end of the time that you want.

To take your pulse, you will be listening to your heart through your chest. Depending on the quality of your stethoscope you can usually listen through about two T-shirt layers of clothing (just for the beats, not quality). Take any extra heavy clothing off if you cannot hear your heart clearly.

Be sure not to put them in backwards. The earpieces of the stethoscope are usually angled and in order to hear correctly and have them be comfortable you need to place the tips in facing FORWARD, in the direction that you are looking. If they are not comfortable, you may gently bend them forward or backwards to get a good fit.^[1]

The piece that goes on your chest is called the chestpiece. Many stethoscopes have chestpieces with two sides that can be rotated around the tubing to better hear high frequency and low frequency lung sounds, a diaphragm and a bell. When one is in use the other cannot be used. With the earpieces in your ears, GENTLY rub the diaphragm side (the one with the flat plastic piece) of the stethoscope and listen for a sound. If you do not hear a sound, turn the chest piece over (you should hear it click into position) and try again. This should resolve any issues.^[2]

Position the chestpiece on your chest, find the imaginary line between your nipples. You want to put the chestpiece diaphragm side down on that line slightly to your left of center. Experiment to find where you can hear your heart best. If you are having trouble and still cannot find it, it may be helpful to lie down or lean forward slightly while doing this.^[3]

You are now ready to count your heart beat for a given time period. When you listen to the heart, remember that it has TWO beats, which represent the succession of valves in your heart contracting to pump blood (lub-dub lub-dub). HOWEVER ONLY ONE OF THOSE BEATS IS COUNTED IN YOUR PULSE. The first beat is usually stronger and it is recommended only listening to that beat and tuning the first one out.^[4]

Look at the second hand on your watch/clock, and when the second hand hits one of the 5 minute markers start counting the beats through your scope. In a clinical setting they typically count the pulse for 30 SECONDS as this is the minimum that is considered accurate. As mentioned earlier, you do not need to note each time the second hand moves, keeping track of that is too much work! Instead, look at where the second hand WILL end up at the end of 30 seconds.

• For example, if you start counting at the "2" mark, the hand will have passed 30 seconds at the "8" marker, or if you start at 12, 30 sec. will be at 6. Stop counting beats when the second hand reaches the marker and 30 seconds have elapsed. If you would like to be even more accurate (because the pulse is not always completely regular), you may count beats for 1 minute.^[5]

If you counted for an entire minute you are all set and have your pulse. However, in most cases you now need to do a little math because pulse values are expressed in beats per minute (BPM). You counted the beats for 30 seconds, but as there are 60 seconds per minute you must multiply that by 2 to get beats per 60 seconds.

• For example, if you counted your pulse at 36 beats over 30 seconds, your pulse would be 72 because 36beats/30seconds = 72beats/60seconds. If, for some reason, you counted beats for only 15 seconds (as is sometimes done in moving ambulances because taking pulses is a PAIN in there), you would need to multiply by 4 as 15 x 4 = 60 = bpm.^[6]