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When should I test for ketones if I have diabetes?

Ask your doctor or nurse when to check for ketones. You may be advised to check for ketones under the following conditions:
  • Your blood glucose is more than 300 mg/dl
  • You feel nauseated, are vomiting, or have abdominal pain
  • You are sick (for example, with a cold or flu)
  • You feel tired all the time
  • You are thirsty or have a very dry mouth
  • Your skin is flushed
  • You have a hard time breathing
  • Your breath smells "fruity"
  • You feel confused or "in a fog"
These can be signs of high ketone levels that need your doctor's help.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.