Guest guest Posted December 15, 2007 Report Share Posted December 15, 2007 My experience tells me your results will be skewed, if you test to see how a single carb affects your blood glucose level, when your pretest bs is either high or low. It would be best to test the effects of a single carb on your bs level when your pretest bs is in the normal range 80-120. If your bs is in the normal range consume say 12 grams of carbs or three 4 gram glucose tablets, and take another bs test 72 minutes later to see what the reading is. For example assume your bs is in the normal range, say 100. Now eat three glucose tablets or consume 12 grams of carbs. The glucose tablets are recommended, because they contain an exact amount of grams of carbs in each tablet. Now after doing this, take your bs once again. Suppose your new bs level is 220 an hour after consuming all of those tablets. You now know three things. Your pretest bs was 100 and it is now 220. You consumed 12 grams of carbs. These carbs caused your bs to rise 120 points. Now derive what I call your C factor. Divide 120, the difference between 100, your pretest bs level and 220 by the number of grams you consumed, which is 12. Now you know your C factor or how much 1 gram of carb will affect your bs level. In this example your C factor is 10. 120/12=10. Now you know a single gram of carb will raise your bs 10 points. Glucose monitors traditionally do not make precise measurements when the bs level is extremely low, below 45 or when the bs is very high, even though they seem to be more acdurate at the high bs measurements than at the low ones. Harry -- Testing Glucose Affect Harry, you have often talked about seeing how you are affected by intake. So, you say measure BS and then take a known carb amount, such as a glucose tab, and measure again in two hours, etc. I am wondering if it matters when you do this. For instance, if you fast for a given time to get your BS low or what about if it is very high, say after a sugar binge. I just wonder will the results be skewed by jumping so much or dropping. I hope that was clear as mud. Thanks for your help, as always! Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 15, 2007 Report Share Posted December 15, 2007 Harry, this is great! Thank you for the explanation. It has only taken a year so far but I will get to finding this out. Baby steps... The best! Re: Harry -- Testing Glucose Affect My experience tells me your results will be skewed, if you test to see how a single carb affects your blood glucose level, when your pretest bs is either high or low. It would be best to test the effects of a single carb on your bs level when your pretest bs is in the normal range 80-120. If your bs is in the normal range consume say 12 grams of carbs or three 4 gram glucose tablets, and take another bs test 72 minutes later to see what the reading is. For example assume your bs is in the normal range, say 100. Now eat three glucose tablets or consume 12 grams of carbs. The glucose tablets are recommended, because they contain an exact amount of grams of carbs in each tablet. Now after doing this, take your bs once again. Suppose your new bs level is 220 an hour after consuming all of those tablets. You now know three things. Your pretest bs was 100 and it is now 220. You consumed 12 grams of carbs. These carbs caused your bs to rise 120 points. Now derive what I call your C factor. Divide 120, the difference between 100, your pretest bs level and 220 by the number of grams you consumed, which is 12. Now you know your C factor or how much 1 gram of carb will affect your bs level. In this example your C factor is 10. 120/12=10. Now you know a single gram of carb will raise your bs 10 points. Glucose monitors traditionally do not make precise measurements when the bs level is extremely low, below 45 or when the bs is very high, even though they seem to be more acdurate at the high bs measurements than at the low ones. Harry -- Testing Glucose Affect Harry, you have often talked about seeing how you are affected by intake. So, you say measure BS and then take a known carb amount, such as a glucose tab, and measure again in two hours, etc. I am wondering if it matters when you do this. For instance, if you fast for a given time to get your BS low or what about if it is very high, say after a sugar binge. I just wonder will the results be skewed by jumping so much or dropping. I hope that was clear as mud. Thanks for your help, as always! Quote Link to comment Share on other sites More sharing options...
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