A blood sugar degree less than a hundred and forty mg dL 7eight mmol L is regular A studying of greater than 200 mg dL 111 mmol L after two hours indicates diabetes A reading between one hundred forty and 199 mg dL 78 mmol L and 11zero mmol L indicates prediabetes This blood check, which does not require fasting, indicates your average blood sugar degree for the past two to three months. doxycycline for dog