Color may be adequate for the most simple configuration of patient monitoring, but remains a problem for the 4,700 red green colorblind anesthesia providers.In summary, the following points should be taken into account: The general consensus appears to be that standardization of colors would be useful, but most likely could not be fully implemented in many patient monitoring systems.ĭiscussion of these issues leads to the recognition that 1 factor, such as color, will probably not satisfy requirements for unique identification of physiologic parameters as discussed above. The issue is not just waveforms but includes numerics as well, especially if they display respiratory gas information. Most monitors that display 6 or 8 waveforms on a screen will undoubtedly require more colors than are presently available. A more unusual form of color blindness is blue yellow, which occurs equally in men and women but is limited to 5% of the 10% of color blind individuals (0.5% of the population). If color becomes a standard as a visual indicator of important information, you will fail to convey the information intended with color to roughly 4,686 red green colorblind anesthesia providers (32,103 male anesthesiologists and 14,760 male CRNAs currently in practice).
Red green is much more common in men with an occurrence of approximately 10% in the population. One significant problem concerning standardizing colors is that color is limited as a display feature for many people due to the prevalence of color blindness. Goggles worn during cases employing lasers present another problem by filtering out certain wavelengths or colors of light. Two ECG waveforms with ST segment depression from multiple leads along with one impedance plethysmography waveform with numerics for respiratory rate, all come from the ECG module. This raises the question as to which numerics are which which ones will be used to treat the patient? Upon careful inspection the NIBP numerics contain information about the cycle time and the age of the data, which will not be found on the arterial line. The arterial waveform and both sets of numerics will be in red. For example, a patient has an arterial line and an automated blood pressure cuff. Problems arise when multiple measurements of a single parameter appear on the screen. An anesthesiologist supervising multiple rooms has the advantage of looking at the data they are interested in with only a glance, and in a crisis could gather the important physiologic data very quickly. If heart rate is always green and arterial pressure is always red, pulse oximetry is always yellow, carbon dioxide is always white, and temperature is always cyan, then the most basic form of patient monitoring can be achieved unambiguously.
#HEART MONITOR LINES HOW TO#
The second issue is how to distinguish one set of numerics from another, since not all numerics are associated with waveforms, and this is where standardizing color may be helpful, but not practical. The first issue is how to link numerics to waveforms, assuming the patient is treated based upon numerics and the waveform is used to validate the data. Clinical practice illustrates different color schemes are the norm not just between institutions but also within institutions. Many clinicians like to customize their screens and create specific configurations, including color, for each type of surgery, and the monitor manufacturers are quite accommodating. Various groups from clinicians to industry have discussed this issue, without resolution. Are there any established guidelines regarding the colors designated for ECG tracings, SpO 2 pulse oximetry on patient monitors in the OR and the ICU?
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