Oral glucose duration is best described as:

• A. Variable
• B. Brief
• C. Immediate
• D. Prolonged

Answer: (A)

Oral glucose has a duration that is variable because it depends on how quickly and how well it is absorbed from the gastrointestinal tract. After swallowing, glucose must move from the stomach into the small intestine and be absorbed into the bloodstream. This absorption rate can differ widely from person to person based on gastric emptying speed, intestinal function, recent food intake, hydration, vomiting, or poor perfusion. Because of these factors, the glucose-raising effect can occur at different times and last for different lengths in different patients, making “variable” the best description of its duration.

It isn’t necessarily immediate, since it takes time for absorption to occur, and it isn’t reliably brief or prolonged in a uniform way, due to those varying absorption dynamics. If hypoglycemia persists or recurs, consider alternative routes or agents (like IV dextrose or glucagon) and reassess glucose after treatment.