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Sanofi Canada

2905 Place Louis-R.-Renaud
Laval, Quebec, H7V 0A3

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Checking Your Blood Glucose in Special Situations

Special situations can affect your blood glucose. With planning, you can adapt to these situations and keep your blood glucose in control. Here are a few tips for managing some special situations.


Any type of illness, no matter how mild, can cause your blood glucose to change. When you're sick make sure you check your blood glucose more frequently - for example every two to four hours. If your readings are consistently high, contact your doctor. For more information on managing your blood glucose during illness, read the article on diabetes and sick days.

If you vomit twice or more within 12 hours, call your doctor for advice or go to your nearest hospital emergency department.


Travelling often means different meal patterns and activity levels. If you travel abroad, changing time zones can affect when you eat and when you take your medications (including insulin). In order to manage all of this, you should check your blood glucose more often. Carry extra supplies with you to check your blood glucose. Different countries may have different types of blood glucose strips. Different countries will also measure blood glucose in different units (Canada uses the metric system of mmol/L), so you cannot always compare your blood glucose results to those of others when travelling abroad. For more information, read the article on traveling with diabetes.


Holidays are a time of celebration and enjoyment. If you eat more, or eat more of the foods you don't normally consume, don't stress about it. Remember to prepare for special meals the day before the holiday and the day after the holiday. It may be important to keep track of your blood glucose readings by checking more often. For more tips, read the article on how to manage your diabetes during the holidays.


Exercise is an extremely important part of your diabetes management plan. It can present some challenges with respect to its effect on your blood glucose. You should check your readings before, during and after exercising. Your readings could go up or down while you're exercising and after you've finished a workout, so checking your blood glucose is important to figure out how exercise affects your readings. For more information about checking your blood glucose readings and exercising, click here. Once you have a better idea of how your blood glucose readings react to exercise, you'll be able to work on managing them before, during and after exercising.