What Causes Fluctuations In Blood Sugar Levels?

Posted on Tue, 16 Aug 2016

Question: what is a normal fluctuation for fasting blood sugar with a normal A1C level

how long does it take to get an answer?

Answered by Dr. Dr. Abhay A Mali (1 hour later)

Brief Answer:
OGTT & HbA1c.

Detailed Answer:
Hi,
Thanks for your question.
Noted your concern.

For non diabetic person Fasting blood sugar level is always below 100.

Fasting blood sugar 100 to 125 it is called as Impaired Fasting Glucose (Prediabetes).

& Above 125 denotes diabetes.

HbA1c -
Normal - Below 5.7
Prediabetes - 5.7 to 6.4
Diabetes - 6.5 & above.

For person with diabetes under treatment -
Fasting should be 90 to 140.
HbA1c should be below 7. 5 (Preferably below 7).

Hope this helps you.

Regards,
Dr. Abhay Mali.

Above answer was peer-reviewed by : Dr. Nagamani Ng

Follow up: Dr. Dr. Abhay A Mali (3 hours later)

what i want to know is what a normal persons blood sugar fluctuates each day. not a fasting one

Answered by Dr. Dr. Abhay A Mali (9 minutes later)

Brief Answer:
There is no standard criteria for blood sugar fluctuation.

Detailed Answer:
There is no standard criteria for blood sugar fluctuation.

What has been standardized is a fasting blood sugar and blood sugar 2 hours after 75 gram glucose load called as Oral Glucose Tolerance Test (OGTT).
In clinical practice OGTT is largely replaced by fasting and post-prandial blood sugar level.

Roughly for a normal person pre-meal blood sugar level should always be below 100 and 2 hours post meal blood sugar below 140mg/dl.
Blood sugar level above this may need standard tests to confirm pre-diabetes or diabetes status.

Hope this helps you.

Note: For further follow-up, discuss your blood glucose reports with our diabetologist. Click here.

Above answer was peer-reviewed by : Dr. Veerisetty Shyamkumar