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Short Summary
Main recommendation: If blood sugar is high (for example 300–400) without serious symptoms, first take a brisk walk for about 30 minutes, and if you can't walk, use a fast-acting insulin such as Novolog, Humalog, or Apidra according to your doctor's sliding scale, then recheck within 2–3 hours. Seek emergency care right away for nausea, vomiting, abdominal pain, or rapid breathing. The speaker, Dr. Ahmet Ergin, an endocrinologist, also warns against long-acting insulin for quick correction.
Key Points
- The speaker says the most common causes of sudden high readings are a missed medication, an unexpected high-carb meal, indulgence, or steroids.
- Symptoms of nausea, vomiting, abdominal pain, or rapid breathing mean you should go to the hospital rather than wait for a doctor's call.
- Intense exercise such as sprinting can raise blood sugar through an adrenaline response, so only moderate walking is recommended.
- Long-acting insulins (Lantus, Levemir, Tresiba, Novolin, Humulin) are described as too slow for quick correction and can keep acting for 24 or more hours, risking later lows.
- Glipizide, Glucotrol, glimepiride, and glucosidase inhibitors are described as less favored, since the extra insulin they produce is unpredictable.
Details Worth Noting
- Concrete instructions:
- If blood sugar is high but you have no alarming symptoms, take a brisk walk on a treadmill at about 4–5 miles per hour for about 30 minutes; avoid sprinting or running at high speed.
- If walking isn't possible, and you have fast-acting insulin (Novolog, Humalog, or Apidra) plus a sliding scale from your doctor, take the dose the scale specifies for your reading.
- After a correction dose, monitor blood sugar more often and recheck within 2–3 hours to confirm it is falling.
- If it keeps rising after insulin, talk to your doctor promptly; if you are symptomatic, check urine ketones, and moderate to large ketones are a bad sign that correction may be too late.
- Do not take extra long-acting insulin to correct a high reading.
- If you take glipizide, glimepiride, or similar drugs and take an extra dose, check blood sugar at least every 3–5 hours and watch for lows.
- The speaker frames long-acting insulin as an "18-wheeler" versus fast-acting insulin as a "Ferrari," illustrating why fast-acting insulin is preferred for speed.
- The speaker notes that sliding scale insulin can bring blood sugar down fairly quickly as long as you have it on hand.
- The video mentions a separate companion video on correcting low blood sugar, which the transcript does not cover.
Bottom Line
High blood sugar without alarming symptoms is usually managed with gentle walking or a prescribed fast-acting insulin dose, with close rechecks, while long-acting insulin and intense exercise are best avoided for quick correction; any warning symptoms call for emergency care.
