The adult dose can be given to someone over how many kilograms (or pounds)?

• A. 25 kg or approx. 55 lb
• B. 20 kg or approx. 44 lb
• C. 30 kg or approx. 66 lb
• D. 15 kg or approx. 33 lb

Answer: (A)

In EMS dosing, there’s a practical switch from pediatric to adult dosing at a specific weight: once a patient weighs more than 25 kg (about 55 pounds), the adult dose is used. Pediatric doses are typically calculated per kilogram, so for patients over 25 kg the fixed adult dose is appropriate and simplifies dosing across older children and adults. That’s why the correct threshold is 25 kg. The other options either fall below that switch point (20 kg, 15 kg) or aren’t the standard cutoff used for determining when to give the adult dose (30 kg would still be over the threshold, but the established threshold is 25 kg).