What are a1c's = to bg numbers?

[MinimedPumper07]

i read on here somewhere that a 6.2 was equal to a 145 average, but on Glycosylated hemoglobin - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Glycosylated_hemoglobin)

it says that a 6 is a 120.

so which is right? is there any site that has it perfectly accurate?

[princesslinda]

This is a chart I found when googling Hgb A1C blood glucose equivalent. I know there's also a chart by Dr. Bernstein, but this is the one i've printed out and keep to refer to. If you look under some of the posts from MarkTN, he has an equation for figuring it yourself as well.
Linda


HbA1c Test Results (%) & Their Plasma Blood Glucose Equivalents (mg/dl)


HbA1c 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9
Glucose 65 69 72 76 79 83 86 90 93 97

HbA1c 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9
Glucose 101 104 108 111 115 118 122 126 129 133

HbA1c 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9
Glucose 136 140 143 147 151 154 158 161 165 168

HbA1c 7.0 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9
Glucose 172 175 179 183 186 190 193 197 200 204

HbA1c 8.0 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9
Glucose 207 211 215 218 222 225 229 232 236 240

HbA1c 9.0 9.1 9.2 9.3 9.4 9.5 9.6 9.7 9.8 9.9
Glucose 243 247 250 254 257 261 264 268 272 275

HbA1c 10.0 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9
Glucose 279 282 286 289 293 297 300 304 307 311

HbA1c 11.0 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9
Glucose 314 318 321 325 329 332 336 339 343 346

HbA1c 12.0 12.1 12.2 12.3 12.4 12.5 12.6 12.7 12.8 12.9
Glucose 350 353 357 361 364 368 371 375 378 382

HbA1c 13.0 13.1 13.2 13.3 13.4 13.5 13.6 13.7 13.8 13.9
Glucose 386 389 393 396 400 403 407 410 414 418



Chart posted for general educational use. Data represent averages. Individual values may vary.

Consult your healthcare professional for interpretation of test results.



Conversion: HbA1c = (Plasma Blood Glucose + 77.3) / 35.6; Plasma Blood Glucose = (HbA1c * 35.6) - 77.3

Source: Curt L. Rohlfing, BES, Hsiao-Mei Wiedmeyer, MS, Randie R. Little, PHD, Jack D. England, Alethea Tennill, MS and David E. Goldstein, MD "Defining the Relationship Between Plasma Glucose and HbA1c, Analysis of glucose profiles and HbA1c in the Diabetes Control and Complications Trial," Diabetes Care 25:275-278, 2002. Abstract
Chart design © 2002 diabeteschart.org

What is the HbA1c test?



Home meter a couple of years old? It may read whole blood glucose. Click here to convert HbA1c to whole blood glucose. More info on plasma blood glucose vs. whole blood

[JediSkipdogg]

The problem is you have to look at it two ways. One, plasma blood and whole blood. The two can vary and it depends on how old the chart is.

Here is the formula though....

HbA1c = (Plasma Blood Glucose + 77.3) / 35.6

Since most meters use Plasma now days....a 6.0% A1C is equal to about 136.3 mg/dl. In whole blood that is 121.7 mg/dl.

[FTW]

Here's a link to a printable chart. (http://www.geocities.com/diabeteschart/bloodsugarchart.html)

FTW

[MinimedPumper07]

so do the doctors use plasma or whole blood?

[JediSkipdogg]

so do the doctors use plasma or whole blood?

Plasma....lab tests are 99.999% of the time done using Plasma.

[REDLAN]

for those who work in mmols I worked out a simple formula

average BG in mmols = 1.7 x HbA1C - 3.6

it matches the wiki amounts to +/- 0.1 mmol. The linear realtionship does not appear to hold much below 6.0%

[MinimedPumper07]

so i guess the mm link meter is plasma?