![]() ![]() In one study, success rates were as low as 45% in identifying the presence of a pulse (2) and in another, junior doctors took an average of 18 seconds to identify a pulse (3). In the late 90’s several studies were conducted to assess the accuracy of lay people (1), First Aiders, Paramedics and even Doctors in assessing simply the presence of a pulse. On a fit, healthy casualty in low stress situations it can sometimes be easy to feel a nice juicy pulse but in reality, with a poorly casualty, and you’re having a bit of a moment and you are not in a nice, quiet training environment, don’t bother. Understanding Heart Conditions - Part 1 Heart Attack & AnginaĬhecking a pulse is hard.Trauma Basics - Catastrophic Haemorrhage.Hyponatremia - the effects of over-hydration.Please contact us again if you require additional information. If the blood flow in your finger drops below a certain level, the pulse oximeter will not be able to function. Remember your pulse oximeter is measuring your SpO2 and PR based on your blood flow. You can do this simply by rubbing your hands together. We suggest that you warm your hands and fingers before taking the measurements. Sometimes, it may not even register a reading. when your blood perfusion level is low, the device may have a hard time registering an accurate reading. If possible, switch to an unpolished nail or consider another application site. if applicable, nail polish and false fingernails may also cause false readings. This will cause readings to fluctuate and be inaccurate. keep your hand still because any movement can cause the device to reset its’ reading. While the device is doing this, the readings will keep fluctuating until it stabilizes. Some people require a longer time for the pulse oximeter to optimize its sensitivity. after you insert your finger and turn the power button on, please wait about 30 seconds for the readings to stabilize. ![]() Usually, the top number is the oxygen level and the bottom number is the pulse/heart rate.įollowing are some tips that will help you get accurate readings when using the pulse oximeter: Hi Carla! For your information, the pulse oximeter registers your blood oxygen level and your pulse/heart rate. If it reads 95/24 what does that mean I’m not understanding the bottom number could you help me out In general, the height of the pulse bar graph should be at least 30% when a reading is taken. The height of the pulse bar graph correlates to pulse strength. It is a useful feature used to determine the reliability of a reading. Pulse bar graph is a visual representation of your pulse beat. In general, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness. The normal pulse rate values for adults typically range from 60-100 bpm (beats per minute). Your PR reading is a measure of the number of times your heart contracts per minute. People who live at high altitudes may display lower SpO 2 readings. A reading of 94% or less (at sea level) suggests that your blood oxygen saturation level is low. According to Mayo Clinic, an SpO 2 reading of 95% or more is generally considered to be a normal blood oxygen level*. Your SpO 2 reading is a measure of the amount of oxygen in your blood. ![]()
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