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#1
07-07-2009, 03:53 PM
 Unregistered Guest Posts: n/a
conversion from mg/dL to percentage

This is in regards to a blood alcohol level reported as 252mg/dL. How does that convert to percentage regarding the legal limit in California of 0.08%
#2
07-07-2009, 05:06 PM
 JohnS Moderator Join Date: Dec 2007 Location: SE Michigan, USA Posts: 9,533 Rep Power: 19
Re: conversion from mg/dL to percentage

Quote:
 Originally Posted by Unregistered This is in regards to a blood alcohol level reported as 252mg/dL. How does that convert to percentage regarding the legal limit in California of 0.08%
The US uses a weight over volume method (in essence, assuming 1 dL of blood weighs 100 g; it really weights 105-106 g)

1% is 1 g (1000 mg) per deciliter
0.1% is 100 mg/dL
The 0.08% limit is 80 mg/dL
252 mg/dL is a whopping 0.252%, and at 3X limit, a huge pile of trouble for somebody.

Even in a true weight/weight system, it is about 0.238%.
#3
07-14-2009, 06:28 AM
 Unregistered Guest Posts: n/a
Re: conversion from mg/dL to percentage

John,
I am doing a correlation study to compare glucose reading from a glucometer vs. the glucose determination obtained by lab analytical procedure.

The units from the glucometer are mg/dL and the units from the lab are mg/100g

It seems to me that both units are equivalents and eventually I can do the correlation directly without any conversion. Is that Ok? or what kind of conversion I have to do before running the correlation analysis?

I will appreciate if you could send me your reply to kmanriquek@yahoo.com

Kurt
#4
07-14-2009, 07:55 AM
 JohnS Moderator Join Date: Dec 2007 Location: SE Michigan, USA Posts: 9,533 Rep Power: 19
Re: conversion from mg/dL to percentage

Quote:
 Originally Posted by Unregistered John, I am doing a correlation study to compare glucose reading from a glucometer vs. the glucose determination obtained by lab analytical procedure. The units from the glucometer are mg/dL and the units from the lab are mg/100g It seems to me that both units are equivalents and eventually I can do the correlation directly without any conversion. Is that Ok? or what kind of conversion I have to do before running the correlation analysis? I will appreciate if you could send me your reply to kmanriquek@yahoo.com Kurt
They are at least very close and there may be a "gentlemen's agreement" they are the same thing. Technically, they should be corrected for the density of blood, which I understand is around 1 dL = 106 g.

I DON'T know whether it is customary to account for this (minor) difference.
#5
07-14-2009, 08:43 AM
 Unregistered Guest Posts: n/a
Re: conversion from mg/dL to percentage

Quote:
 Originally Posted by JohnS They are at least very close and there may be a "gentlemen's agreement" they are the same thing. Technically, they should be corrected for the density of blood, which I understand is around 1 dL = 106 g. I DON'T know whether it is customary to account for this (minor) difference.
Many thanks for your reply. Actually I am doing this study not on blood samples, but on samples of potato extracts. Its a common practice in the Canadian potato processing industry to use glucometers as a field method to meassure glucose content.
Therefore we are trying to proof the correlation of both methods to see the feasibility of using the glucometer in Southamerica as well.
Kurt
#6
11-17-2010, 02:13 PM
 idav@alamo1.com Guest Posts: n/a
Re: conversion from mg/dL to percentage

Please convert 37 mg/dl to percentage
#7
02-13-2012, 11:02 AM
 Unregistered Guest Posts: n/a
Re: conversion from mg/dL to percentage

Quote:
 Originally Posted by Unregistered This is in regards to a blood alcohol level reported as 252mg/dL. How does that convert to percentage regarding the legal limit in California of 0.08%
278mg/dl. How does that convert to percentage regarding the legal limit in Mississippi?
#8
02-13-2012, 02:28 PM
 JohnS Moderator Join Date: Dec 2007 Location: SE Michigan, USA Posts: 9,533 Rep Power: 19
Re: conversion from mg/dL to percentage

Quote:
 Originally Posted by Unregistered 278mg/dl. How does that convert to percentage regarding the legal limit in Mississippi?
See postv #2. The legal limit in all states is 80 mg/dL. States may set it lower, but not higher. 278 mg/dL is 0.278 or about 3.5X the legal limit. In many states, it is considered a "super drunk" offence with higher penalties.
#9
06-04-2012, 10:37 PM
 Unregistered Guest Posts: n/a
Re: conversion from mg/dL to percentage

34 mg/dL is what percent and is it considered drunk
#10
06-05-2012, 09:14 AM
 JohnS Moderator Join Date: Dec 2007 Location: SE Michigan, USA Posts: 9,533 Rep Power: 19
Re: conversion from mg/dL to percentage

Quote:
 Originally Posted by Unregistered 34 mg/dL is what percent and is it considered drunk
0.034%. The general limit is 0.08%, but there are special (lower) limits in many states for special categories such as people underage, pilots, commercial drivers, etc.

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