How many grams of carbohydrates are provided per hour by D10 (10% dextrose) administered at a rate of 60 mL/hour?

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D10 Infusion Carbohydrate Calculation

D10 running at 60 mL/hour provides 6 grams of carbohydrates per hour.

Calculation Explanation

  • D10 solution contains 10% dextrose, which means 10 grams of dextrose per 100 mL of solution 1
  • At an infusion rate of 60 mL/hour, the carbohydrate delivery can be calculated as:
    • 10 g/100 mL × 60 mL/hour = 6 g/hour 2

Clinical Context of D10 Administration

  • D10 solutions are commonly used in clinical settings for:
    • Treatment of hypoglycemia 2
    • Provision of maintenance carbohydrates in patients who cannot take oral nutrition 1
    • Management of hyperkalemia (with insulin) 2
    • Fluid replacement in certain clinical scenarios 3

Important Considerations for D10 Administration

  • The maximum rate at which dextrose can be infused without producing glycosuria is 0.5 g/kg of body weight/hour 1
  • Approximately 95% of dextrose is retained when infused at a rate of 0.8 g/kg/hour 1
  • For treatment of hypoglycemia, higher concentrations and bolus administration may be required (typically 10-25 grams of dextrose) 1
  • When used with insulin for hyperkalemia treatment, the ratio is typically 1 unit of insulin for every 4 g of glucose 2

Monitoring Recommendations

  • Regular blood glucose monitoring is essential during D10 infusion to avoid hyperglycemia or hypoglycemia 1
  • Electrolytes should be monitored, particularly when D10 is administered with insulin 2
  • Fluid status should be monitored to prevent overload, especially in patients with cardiac or renal compromise 3

Common Pitfalls to Avoid

  • Administering dextrose solutions too rapidly can cause hyperglycemia, which may have adverse effects on the central nervous system 2
  • In non-diabetic elective surgery patients, even 500 mL of dextrose-containing solutions can cause significant, albeit transient, hyperglycemia 4
  • D10 infusion during surgical stress may have a blunted inhibitory effect on endogenous glucose production, potentially leading to higher glucose levels than anticipated 5

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Guideline

Potassium Infusion Guidelines

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

Research

Effect of i.v. dextrose administration on glucose metabolism during surgery.

JPEN. Journal of parenteral and enteral nutrition, 2004

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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