Jump to content

Photo

How quickly does blood sugar change?

- - - - -

  • Please log in to reply
15 replies to this topic

#1
BAD

BAD

    Junior Member

  • 500 plus
  • PipPip
  • 20 posts
I just tested myself today: 145. Two minutes later: 170. Twenty minutes later: 160.

Has anyone tested themselves every few minutes to see what happens? I don't want to be the guinea pig!

Does anyone know how quickly glucose levels rise and fall?

Thanks all!

-Bryan

#2
Rekarb

Rekarb

    Senior Member

  • 500 plus
  • 652 posts
One of the problems with testing quickly is the accuracy of the meter. Your bgs might be changing but typically you're not going to get out of the error window of your meter. Those could all actually be the same number.
Dx'd 6/04/09 at dx -C - peptide > 1.5, GAD - Negative, BMI - 22, A1C - 9.9, FBS - 300

A1c 9/09 - 5.8, 12/16 -5.2, 3/18 - 5.6, 7/10 - 4.7
Was on Met and Insulin, now just diet (LC/HF)
Ketosis-Prone T2: http://www.annals.or...tract/144/5/350
Sudden onset T2 blog: http://ketosisprone.blogspot.com/

#3
Caravaggio

Caravaggio

    Cool runner

  • 500 plus
  • 2,907 posts
  • I am a:Type 2
If memory serves me right, Jenny Ruhl's blood sugar 101 website or book may have answers to your questions so you don't have to be your own guinea pig.

#4
aggie168

aggie168

    Senior Member

  • 500 plus
  • 1,364 posts
  • LocationTexas
  • I am a:Type 1
Hello Bad, I do not have your answer. However, I agree with Rekarb, your 3 number are essentially the same as meter can vary up to 20% and is still within tolerance. Example, your real # is 160. Your 145 is only about 10% low while your 170 is only 6% high. :)

===============================================
DX 02/2002, Minimed 530G(751) w/CGMS on Novolog
Aspirin 81mg + Lipitor 10mg + Losartan 50mg

05/2014 A1C 5.8 Chol=154 Trig=96 HDL=48 LDL=87


#5
bardley

bardley

    Member

  • 500 plus
  • 175 posts
...and as I understand, the strips can give you a variation of plus or minus 10 as well. Anyway, add 'em all up and come up with an average.

#6
Subby

Subby

    Senior Member

  • 500 plus
  • 10,158 posts
Don't forget to wash your hands well, too. Something on your hands can really screw around with your readings.
20 years T1. NPH and Novorapid.
Some essentials for my blood sugar control: dosing via i:c ratio and cf • basal testing when needed • daily 40 minutes moderate exercise (or close) • carbs somewhere below 120g currently • only eating carbs and carb/fat combos that do not cause a problem spike, with or without insulin.

#7
BAD

BAD

    Junior Member

  • 500 plus
  • PipPip
  • 20 posts
Wow. Never thought of this, but thanks!

Thank you everyone!

#8
NickP

NickP

    Senior Member

  • 500 plus
  • 1,895 posts
Hey BAD!

I would guess that your meter is giving you some error. However, my BG can change within minutes.

When I wake-up, I immediately take my wake-up BG reading. I then shower and dress. Afterwards, I take another BG reading (this is about 20-25 minutes after my wake-up reading). This reading is usually 10-20 points higher from my DP.

I also see will sometimes see a big change after work-outs.

Your BG can change rather quickly, especially when you get a dump from your liver.
Nick
Feb 17, 2010 - Initial A1C 9.3 Weight 238
May 26, 2010 - A1C 6.0
Aug 20, 2010 - A1C 5.6
Nov 19, 2010 - A1C 5.8
Mar 1, 2011- A1C 5.7 (No Meds)
Jun 3, 2011 - A1C 5.7 (No Meds)
Oct 31, 2011 - A1C 5.3
Nov 6, 2012 - A1C 5.3
Feb 18, 2014- A1C 5.6 Weight 199

Current Meds:
Metformin 500mg x 2

#9
shyam

shyam

    Senior Member

  • 500 plus
  • 1,030 posts

...and as I understand, the strips can give you a variation of plus or minus 10 as well. Anyway, add 'em all up and come up with an average.


I agree. I've sometimes tested different fingers, different hands etc. and come with fluctuations. But in the long run, it's the averages that matter
DX Type II Nov 2007 (219 fasting)
Diet/Exercise since Aug 2010
1stAug10 : BG 178 Fasting / A1C : 8.00, Oct'10 6.9 / Jan'11 6.4
Apr'11 6.0 / June'11 5.9 / Oct'11 5.8 / Jan'12 5.6 / Apr'12 5.3
Now between 70-125 all the time
;)

#10
Stuboy

Stuboy

    Senior Member

  • 500 plus
  • 1,956 posts
because of the tolerance on the meters, they are really just a guide, if you are looking for a trend on a result (is it on it's way up, or on it's way down) then your best bet is to test once.... then again 15-30 minutes later. Unless your level is running flat at that time, this will give you a better idea, otherwise you're still in that window of tolerance.

The best meter for accuracy, in my opinion, are the OneTouch meters because they have built in technology that tests the sample twice and takes an average of the two, it's called SureTest I believe, it's always been there but only recently marketed by LifeScan.
Stu
Posted Image
Posted Image
Type 1 Since 24.07.2006
Pumping NovoRapid with Animas 2020MDI- Levemir & NovoRapidMDI - Lantus & NovoRapidMixtard 30

Posted Image Ya gots to work with what ya gots to work with!

#11
MCS

MCS

    Senior Member

  • 500 plus
  • 4,637 posts
I can go from mid to low 80's pre meal, 1 hr PP be in the 140's and back to mid to low 90's post 2 Hr PP, so there is a lot of changes going on in those two hours. I have tested every 15 minutes before and have seen 10-30 pt rise and fall in that time. Your BG levels are constantly changing.
---------------------------------
Asprin 2-6 325mg per day
Amino Acids, Vitamins Bx, C, D, E
Hi-Maize 260, Ground and Whole Flax Seed
COQ10, Magnesium, Zinc, Fish Oil, Lisinopril
A1C estimate of 10-12 at dxed 5.6, 4.8, 4.6
Everyone has something to offer, you just have to listen

#12
KatGirl

KatGirl

    Member

  • 500 plus
  • 138 posts
I asked my doctor this once and he told me it can change as quickly as your blood pressure. In other words, every few minutes.

However, like others have said, meters have a margin of error so you have to take that into account if you are testing every few minutes.
Recent A1c: 11/5/10: 5.0 :D

Completed Races:
6/13/10: North Shore 1/2 Marathon: Chip Time: 2:46
9/13/10: Chicago 1/2 Marathon: Chip Time: 2:35
10/31/10: Monster Dash 1/2 Marathon: Chip Time: 2:37
11/6/10: Chicago Hot Chocolate 15K: Chip Time: 1:48

Upcoming Races:
Disney Princess Half Marathon (Orlando): 2/27/11
Chicago Shamrock Shuffle 8K: 4/10/11
Cincinnati Flying Pig Marathon: 5/1/11

#13
BAD

BAD

    Junior Member

  • 500 plus
  • PipPip
  • 20 posts
I got my first double digit reading upon waking this morning. Usually I am high in the mornings, and go down as the day progresses...

Strips should cost about 5 cents a piece. Okay, you want a better profit margin? Make it 10 cents. The cost of those things is ridiculous. However, testing is the only way to find out what works for you, and what doesn't.

Thanks all!

#14
confussedt2

confussedt2

    Member

  • 500 plus
  • 196 posts
On the cost of test strips consider there are about 24million diabetics that test before and after each meal = at least 6times that =
144,000,000 strips at least per day at 1.00 each paid by insurance or personaly,unless my math is wrong this is alot of money and
then carry it out to 365 days mind boggling my pc probaly can not count that high. alright just had to do it about 52billion dollars.

Edited by confussedt2, 28 September 2010 - 11:42 AM.
math


#15
Brandy0126

Brandy0126

    Junior Member

  • Members
  • Pip
  • 1 posts

On the cost of test strips consider there are about 24million diabetics that test before and after each meal = at least 6times that =
144,000,000 strips at least per day at 1.00 each paid by insurance or personaly,unless my math is wrong this is alot of money and
then carry it out to 365 days mind boggling my pc probaly can not count that high. alright just had to do it about 52billion dollars.


This seems a trifle pricey for little ol' test strips - just checked the cost on mine and it works out to $1.33 per strip....is there a less expensive way (or place, either online or locally) to buy these strips? Thanks everyone for your assistance!

Brandy0126

#16
patricia52

patricia52

    Senior Member

  • 500 plus
  • 2,513 posts

This seems a trifle pricey for little ol' test strips - just checked the cost on mine and it works out to $1.33 per strip....is there a less expensive way (or place, either online or locally) to buy these strips? Thanks everyone for your assistance!

Brandy0126

Walmart ReliOn Prime meter about $17.00. Strips for the meter are $9.00 for 50. Thats 18 cents each.
Patricia


Today is the first day of the rest of my life.


Lantus
Apidra
Diet & Exercise
Most recent A1C 5.6




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users