What Causes Low Blood Sugar Levels After Having Novolog?

Posted on Tue, 23 Sep 2014

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Tue, 23 Sep 2014 Answered on

Thu, 9 Oct 2014 Last reviewed on

Question : I have diabetes..My blood sugar was 300..I gave myself 6 units of Novolog..I then checked it again 75..I ate something sweet and checked it after 30 min, it's still 75..My sugars have been around 99-145. Is this something to be concerned about tonite?

Answered by Dr. Binu Parameswaran Pillai (9 minutes later)

Brief Answer:
Please take a carbohydrate containg snack

Detailed Answer:
Good day,
Noted your concern.
Novolog acts in around 30 minutes and he effects stays for 4 to 5hrs. You must take a snack cotaining carbohydrate before you sleep. For exampe: 2 slices of brown bread or 2 wheatabix pieces or a cup of milk with 2-3 spoons of oats. This will help to maintain the blood sugar overnight. MAy i suggest you to check blood glucose again before sleeping?
Regards
Binu

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Binu Parameswaran Pillai (12 minutes later)

Thank you for your advice..I had some yogurt about 30 mins. ago.. It's at 97. I was so thirsty, headache and sleepy today. Does any of these symptoms have something to do with the Diabetes?

Answered by Dr. Binu Parameswaran Pillai (59 minutes later)

Brief Answer:
Diabetes or infection

Detailed Answer:
Good to hear that. Your symptoms may be related to high sugars which can cause increased thirst and dehydration which cause headaches. ( noted that you had a blood sugar of 300 mg this evening). It could be also due to a viral infection

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar