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The lower-concentration dextrose solution D10 works just as well as the standard D50 for reversing hypoglycemia in the ER, but with a significantly lower risk of rebound hypoglycemia. A retrospective study of 375 ED patients found no meaningful difference in time to reach normal blood sugar levels between the two treatments. However, D50 patients were more likely to experience dangerous blood sugar dips again and end up in the ICU.
When it comes to treating low blood sugar in the emergency department, the standard go-to has long been dextrose 50% (D50) — but a new study suggests its lower-concentration alternative, D10, may be the smarter choice. Researchers at the Medical University of South Carolina analyzed 375 ED patients and found that both solutions brought blood glucose back to normal in roughly similar timeframes, with no statistically significant difference in the primary outcome.
Where things diverge is in safety. Patients treated with D50 were far more likely to experience rebound hypoglycemia — a dangerous drop back into low blood sugar — compared to those given D10. D50 patients also more frequently needed a continuous dextrose drip and were admitted to the ICU at higher rates.
By the Numbers:
Why it matters: These findings challenge the default use of D50 in emergency settings. Switching to D10 could reduce complications and lower ICU admissions — though the authors note that larger, controlled trials are needed to confirm the results.
