Author Topic: OxSat  (Read 562 times)

Offline PlatinumGuy

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OxSat
« on: February 04, 2021, 02:29:43 PM »
Is there any data on (if/) how much confidence a 97-98% reading would give one of not having Covid?

My understanding is that in general even asymptomatic carriers will be clearly diagnosable in chest CTs, wouldn't that translate into lower oxygen levels? 

I understand someone would've noticed if it was 100% predictive or even close, but does it tell you something?

Trying to decide about going to outdoor minyan when somebody I was exposed to only very briefly (from a distance, ventilated, both with masks) tested positive.
״וזה כלל גדול: שישנא אדם כל דבר שקר. וכל מה שיוסיף שנאה לדרכי השקר Ė יוסיף אהבה לתורה.״ - אורחות צדיקים

Offline Dan

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Re: OxSat
« Reply #1 on: February 04, 2021, 02:37:42 PM »
Is there any data on (if/) how much confidence a 97-98% reading would give one of not having Covid?

My understanding is that in general even asymptomatic carriers will be clearly diagnosable in chest CTs, wouldn't that translate into lower oxygen levels? 

I understand someone would've noticed if it was 100% predictive or even close, but does it tell you something?

Trying to decide about going to outdoor minyan when somebody I was exposed to only very briefly (from a distance, ventilated, both with masks) tested positive.
Zero predictability from that.
Save your time, I don't answer PM. Post it in the forum and a dedicated DDF'er will get back to you as soon as possible.

Offline S209

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Re: OxSat
« Reply #2 on: February 04, 2021, 02:39:36 PM »
Is there any data on (if/) how much confidence a 97-98% reading would give one of not having Covid?

My understanding is that in general even asymptomatic carriers will be clearly diagnosable in chest CTs, wouldn't that translate into lower oxygen levels? 

I understand someone would've noticed if it was 100% predictive or even close, but does it tell you something?

Trying to decide about going to outdoor minyan when somebody I was exposed to only very briefly (from a distance, ventilated, both with masks) tested positive.
My family was checking their numbers regularly while they had COVID and for most of them their numbers stayed at or above that.

How brief, how distant, how ventilated, how masked? If the situation is truly as you described I think most would say itís fine to attend an outdoor minyan. If it was 1 minute 6 feet apart outdoors with KN95 masks itís definitely ok, if it was 25 minutes 3 feet apart with open windows and cloth masks you definitely should quarantine.
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Re: OxSat
« Reply #3 on: February 04, 2021, 02:56:07 PM »
 
My family was checking their numbers regularly while they had COVID and for most of them their numbers stayed at or above that.

How brief, how distant, how ventilated, how masked? If the situation is truly as you described I think most would say itís fine to attend an outdoor minyan. If it was 1 minute 6 feet apart outdoors with KN95 masks itís definitely ok, if it was 25 minutes 3 feet apart with open windows and cloth masks you definitely should quarantine.
Good DP, thank you. I understand the other factors, I have somewhat limited information bc itís guidance about an anonymous staff member. I guess better err on the side of caution
״וזה כלל גדול: שישנא אדם כל דבר שקר. וכל מה שיוסיף שנאה לדרכי השקר Ė יוסיף אהבה לתורה.״ - אורחות צדיקים

Offline AsherO

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Re: OxSat
« Reply #4 on: February 04, 2021, 03:37:07 PM »
My understanding is that in general even asymptomatic carriers will be clearly diagnosable in chest CTs

Didnít realize this was the case. Out of curiosity, when was the exposure?

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Re: OxSat
« Reply #5 on: February 04, 2021, 03:48:15 PM »
As I modified my plans for the next few days, I found myself pondering how on the one hand I'd much rather have to stay away from people because of a distant risk than a definite illness Chv, but on the other hand it was much a harder decision to make.

סנהדרין (קג.) ברש"י

Quote
שלא תמצא אשתך וכו', והיינו באהלך באשתך כדאמרי' [במו"ק ז:] אין אהלו אלא אשה, ובשעה שאדם בא מן הדרך קשה לו כשימצא את אשתו ספק נדה יותר מנדה ודאית, שעל ספק הוא מיצר ויצרו תוקפו ואומר טהורה היא ועל חינם אני מונע

Didnít realize this was the case. Out of curiosity, when was the exposure?
I'm not sure. I was notified on Weds of the positive test, although I don't know when the last exposure was. There are hundreds of people in my position, many of whom I know already are getting tested, so I'm assuming if there was some transmission, I'd know by Monday at the latest.
״וזה כלל גדול: שישנא אדם כל דבר שקר. וכל מה שיוסיף שנאה לדרכי השקר Ė יוסיף אהבה לתורה.״ - אורחות צדיקים

Offline AsherO

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Re: OxSat
« Reply #6 on: February 04, 2021, 03:51:16 PM »
As I modified my plans for the next few days, I found myself pondering how on the one hand I'd much rather have to stay away from people because of a distant risk than a definite illness Chv, but on the other hand it was much a harder decision to make.

סנהדרין (קג.) ברש"י
I'm not sure. I was notified on Weds of the positive test, although I don't know when the last exposure was. There are hundreds of people in my position, many of whom I know already are getting tested, so I'm assuming if there was some transmission, I'd know by Monday at the latest.

You mean since youíre all being exposed to eachother at the same location at a regular/daily basis, then if there was transmission itís likely youíll be seeing more of these?

Offline Dan

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Re: OxSat
« Reply #7 on: February 04, 2021, 03:57:35 PM »
Why not take a rapid test?
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Re: OxSat
« Reply #8 on: February 04, 2021, 04:14:58 PM »
Why not take a rapid test?
Painful and won't tell me much. Nobody would isolate if I test positive and I'd be just as careful if I test negative.

You mean since youíre all being exposed to eachother at the same location at a regular/daily basis, then if there was transmission itís likely youíll be seeing more of these?
Yeah, not so much to each other, just hundreds of people exposed to the same staff. The staff are all testing. If viable virus was being transmitted where I was exposed, it is very likely other people will test positive soon.
״וזה כלל גדול: שישנא אדם כל דבר שקר. וכל מה שיוסיף שנאה לדרכי השקר Ė יוסיף אהבה לתורה.״ - אורחות צדיקים

Offline Dan

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Re: OxSat
« Reply #9 on: February 04, 2021, 04:16:55 PM »
Painful and won't tell me much. Nobody would isolate if I test positive and I'd be just as careful if I test negative.
Yeah, not so much to each other, just hundreds of people exposed to the same staff. The staff are all testing. If viable virus was being transmitted where I was exposed, it is very likely other people will test positive soon.
Find a saliva version?
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Offline points 99

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Re: OxSat
« Reply #10 on: February 04, 2021, 04:25:11 PM »
Painful and won't tell me much.

The Labcorp test is not painful at all. They don't go into your brain, just the inside of your nose
« Last Edit: February 04, 2021, 04:27:04 PM by Dan »

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Re: OxSat
« Reply #11 on: February 04, 2021, 04:48:01 PM »
Find a saliva version?
That's a good idea but I'm sure if it's feasible where I am, and wouldn't affect my behavior either way. Maybe next week if it does turn out there was some transmission.
״וזה כלל גדול: שישנא אדם כל דבר שקר. וכל מה שיוסיף שנאה לדרכי השקר Ė יוסיף אהבה לתורה.״ - אורחות צדיקים

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Re: OxSat
« Reply #12 on: February 04, 2021, 07:38:03 PM »
That's a good idea but I'm sure if it's feasible where I am, and wouldn't affect my behavior either way. Maybe next week if it does turn out there was some transmission.
https://www.vaulthealth.com/covid

But you need to order a day or two in advance
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Re: OxSat
« Reply #13 on: February 04, 2021, 09:52:44 PM »
When I had (quite an unpleasant case) of corona back in March I checked my blood SAT levels and they were 98. My wife who is currently positive tested them today and they were 97. So I'd say based at least on that anecdotal evidence that there is no predictive value that.

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Re: OxSat
« Reply #14 on: February 04, 2021, 09:53:16 PM »
When I had (quite an unpleasant case) of corona back in March I checked my blood SAT levels and they were 98. My wife who is currently positive tested them today and they were 97. So I'd say based at least on that anecdotal evidence that there is no predictive value that.
Ty
״וזה כלל גדול: שישנא אדם כל דבר שקר. וכל מה שיוסיף שנאה לדרכי השקר Ė יוסיף אהבה לתורה.״ - אורחות צדיקים