When to Call Your Doctor About Your Blood Sugar Levels

Managing diabetes means keeping a close eye on your blood sugar every single day — but sometimes numbers pop up that leave you wondering, 'Should I call my doctor about this?' Knowing when to reach out can make a real difference in your health and peace of mind. This guide breaks it all down in simple, clear terms so you always feel confident about what to do next.

Understanding Your Target Blood Sugar Range

Before you can spot a problem, it helps to know what 'normal' looks like for you. Your doctor will set a personalized target range, but general guidelines give a helpful starting point.

• Fasting blood sugar (before meals): 80–130 mg/dL for most adults with diabetes

• Two hours after meals: less than 180 mg/dL

• A1C goal for many adults: below 7% (check with your doctor for your personal target)

• Always follow the specific range your healthcare provider has set for you

When Low Blood Sugar Becomes an Emergency

Low blood sugar, or hypoglycemia, can become dangerous quickly if it isn't treated. Knowing the warning signs helps you act fast and decide when to call for help.

• Blood sugar drops below 70 mg/dL and does not improve after eating fast-acting carbs

• You feel confused, shaky, or faint and cannot treat yourself safely

• Someone around you loses consciousness or has a seizure — call 911 immediately

• You experience repeated low readings throughout the day or week

Warning Signs of High Blood Sugar You Should Not Ignore

High blood sugar, or hyperglycemia, can sneak up on you and cause serious complications if left unchecked. These are the moments when a call to your doctor is the right move.

• Blood sugar consistently reads above 240 mg/dL for more than two readings in a row

• You notice excessive thirst, frequent urination, blurry vision, or unusual fatigue

• Your urine ketone test shows moderate to large ketones — this needs immediate attention

• You feel nauseous, are vomiting, or have stomach pain alongside high readings

Signs of Diabetic Ketoacidosis (DKA) — Act Fast

DKA is a serious and life-threatening condition that mostly affects people with Type 1 diabetes, though it can occur in Type 2 as well. If you notice these signs, do not wait — call your doctor or go to the emergency room right away.

• Blood sugar is very high (often above 300 mg/dL) along with positive ketones

• Fruity or sweet-smelling breath

• Rapid breathing, dry mouth, and extreme fatigue

• Nausea, vomiting, or abdominal pain that does not go away

Everyday Situations That Warrant a Doctor Call

Not every concerning moment is a full emergency, but there are everyday situations where checking in with your doctor is absolutely the right call. Trust your instincts — it is always better to ask than to wait.

• Your blood sugar readings have been consistently outside your target range for several days

• You are sick with a cold, flu, or infection and your numbers are harder to control

• You started a new medication and your blood sugar has changed noticeably

• You recently changed your diet or exercise routine and your levels are unpredictable

• You have a wound that is not healing, especially on your feet

How Monitoring Tools Help You Know When to Act

Accurate, reliable blood sugar monitoring is the foundation of knowing when something is off. MDS Diabetes carries a wide range of glucose meters, test strips, and continuous glucose monitors (CGMs) to help you track your levels with confidence every day. Having the right tools means you will always have the data you need when speaking with your doctor.

Shop Diabetes Supplies at MDS Diabetes

At MDS Diabetes, we are here to make managing your diabetes a little easier every day. Visit mdsdiabetes.com to browse our full selection of blood glucose meters, test strips, lancets, CGM supplies, and more — all at affordable prices. Have questions? Our friendly team is just a phone call away at (877) 861-3571. Your health is worth it, and we are proud to support you every step of the way.