What are the sizes of Epi auto injectors and who are they appropriate to use on?

• A. 0.15 mg - Epi Jr., children up to 25 kg (55 lbs); 0.30 mg - older children and adults
• B. 0.15 mg - adults; 0.30 mg - children
• C. 0.10 mg - infants; 0.20 mg - toddlers
• D. 0.25 mg - all ages

Answer: (A)

Weight-based dosing is the key idea here. Epinephrine auto-injectors come in two strengths to match a patient’s size: a lower dose for smaller children and a higher dose for larger children and adults. The pediatric device delivers 0.15 mg for children up to about 25 kg (55 lbs), while the standard 0.30 mg dose is for older children and adults. This ensures the medicine is effective without causing excessive side effects in smaller patients.

So the correct mapping aligns the 0.15 mg dose with children up to 25 kg and the 0.30 mg dose with older children and adults. The other options don’t fit this weight-based approach (for example, giving the higher dose to very small children or applying a single dose to all ages).