You had a tea with sugar at 8 am and the test done at 9:30 am so you had a test for post prandial glucose test.The reading of 133 mg% is only slightly higher than normal.The upper limit for Glucose tolerance test
is 126mg% as per harrisons medicine.
You should have a fasting and post-prandial glucose test done which is also known as glucose tolerance test along with glycelated Hb levels(Hba1c
) which will give a better diagnosis and idea about your sugar levels.
You may have these test done after consulting a diabetologist
.The slightly impaired test can be managed by diet and exercise therapy