How to obtain the best results from your Sensi?
The accuracy of Sensi is directly proportional to the quality of the heart sound recording. The better the quality, the more accurate results you will get.
The more you practice with Sensi and your electronic stethoscope, the better you will get.
What is a great recording?
A great recording is one where you could hear the S1 and S2 sound pulses clearly while recording with no external noises. The S1 and S2 sound pulses must also be visible within the phonocardiogram.
How do I record a great recording?
- The patient must be calm and quite
- The heart sound (lub-dub) must be audible. If you can’t hear the heart sound clearly, move the stethoscope a few millimeters till it is clearer.
- The environment must be quiet (no air-conditioning or people talking)
- Hold the stethoscope very still while recording. Remember, you can press “M” to start a recording.
- Practice, practice, practice…
When is a recording bad?
Recordings should be discarded or re-recorded if there’s finger or stethoscope rubbing noises. Overall noise recordings should also be discarded.
Some people’s heart sounds are just very feint and very difficult to record. Do not use Sensi on obese persons or people with excessive chest tissue.
What if the heart rate is incorrect?
If the S1 and S2 sound pulses are masked with noise or relatively low in amplitude the heart rate could be calculated incorrectly or displayed as 0-bpm.
Try to adjust the heart rate by selecting a more appropriate heart rate interval from the drop down menu or re-record the heart sound.