LuvMacs

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LuvMacs
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  • Apple Watch Series 6 oxygen sensor just as good as hospital equipment



    Just as good as hospital equipment???!!!

    The above is a screenshot of my blood oxygen levels over the past week. I do not have lung or heart disease & am physically fit. Capillary (blood) oxygen levels range from 95 to 100% in healthy adults. As you can see from the screenshot most are the readings recorded by my AppleWatch indicate that I am hypoxic (low oxygen level in the blood). 

    I am a physician & have contacted Apple regarding these inaccurate readings. The response from their engineers was that it was because of my skin pigmentation. I am Asian & while not pale skinned, am not dark either.
    ivanhTomPMRIbyronlanantksundaramrundhvid
  • Apple Watch blood oxygen feature helps doctor save air passenger's life

    omasou said:
    LuvMacs said:
    badmonk said:
    As a recently retired ICU physician, pulse oximetry is a useful tool whether it is an Apple Watch, another manufacturer such as a Masimo or a $30 knockoff.  It was critical back when Covid-19 was more lethal for letting people know when it was time to go to the ER for evaluation or tough it out in the home as well as my work in the hospital.  As well as patients with chronic lung conditions, congenital heart disease, etc.

    And on a personal note my father used pulse oximetry before he died in hospice (which was the first Apple Watch we bought as a family by the way) to monitor his limits of activity.

    It would have been useful during this flight because there is some emerging evidence that hyperoxia is deleterious in cardiac conditions.

    There is also a mistaken belief that pulse oximetry is some type of high tech rocket science but the science of sending different wavelengths of light through pulsatile tissue and assessing the difference to calculate oxyhemoglobin percentage is straightforward and been known for decades even before Masimo & their own Tim Sweeney existed.

    Masimo has appended the wikipedia page on pulse-oximetry to add some complexity in this regard and I am sure that they have offered some unique refinements because they need to detect reflected light but still…

    with millions of Apple Watches in use, it seems like a stretch to discount that their has been no utility to this feature.
    I am a physician too.

    Any of us would administer oxygen to someone who suddenly develops shortness of breath IRRESPECTIVE of their oxygen saturation. So, attributing the Apple watch feature as "helping to save" the passenger's life" is hyperbole. 
    So based solely on a clinical assessment of an individual presenting with SoB, your immediate TX is to apply O2 but performing an additional, readily available, simple and non-invasive confirmatory test prior to applying said O2 is hyperbole. OK /s.
    Administration of supplemental oxygen prior to triage, IRRESPECTIVE of oxygen saturation, is a vital component of management of a person who suddenly develops shortness of breath. A trained health professional would not withhold administration of oxygen EVEN IF oxygen saturation was normal. 
    dewmeMplsPwatto_cobra
  • Apple Watch blood oxygen feature helps doctor save air passenger's life

    When a person with a history of heart disease becomes short of breath, among the most common reasons are myocardial ischaemia (reduced blood flow to the heart) or left ventricular failure (fluid accumulating in the lungs due to abnormal function of the left side of the heart). Administration of oxygen is an important component of the treatment of both these conditions (in fact for any person who suddenly develops shortness of breath), irrespective of what the oxygen level in the blood is.

    As opposed to the ECG feature saving lives by detecting heart rhythm abnormalities in individuals without symptoms (or disregarding symptoms they may be experiencing), the Apple Watch oximeter function is not.  Let us not give undue credit to it! 
    williamlondonMplsP
  • Apple Watch blood oxygen feature helps doctor save air passenger's life

    badmonk said:
    As a recently retired ICU physician, pulse oximetry is a useful tool whether it is an Apple Watch, another manufacturer such as a Masimo or a $30 knockoff.  It was critical back when Covid-19 was more lethal for letting people know when it was time to go to the ER for evaluation or tough it out in the home as well as my work in the hospital.  As well as patients with chronic lung conditions, congenital heart disease, etc.

    And on a personal note my father used pulse oximetry before he died in hospice (which was the first Apple Watch we bought as a family by the way) to monitor his limits of activity.

    It would have been useful during this flight because there is some emerging evidence that hyperoxia is deleterious in cardiac conditions.

    There is also a mistaken belief that pulse oximetry is some type of high tech rocket science but the science of sending different wavelengths of light through pulsatile tissue and assessing the difference to calculate oxyhemoglobin percentage is straightforward and been known for decades even before Masimo & their own Tim Sweeney existed.

    Masimo has appended the wikipedia page on pulse-oximetry to add some complexity in this regard and I am sure that they have offered some unique refinements because they need to detect reflected light but still…

    with millions of Apple Watches in use, it seems like a stretch to discount that their has been no utility to this feature.
    I am a physician too.

    Any of us would administer oxygen to someone who suddenly develops shortness of breath IRRESPECTIVE of their oxygen saturation. So, attributing the Apple watch feature as "helping to save" the passenger's life" is hyperbole. 
    dewme