Which drug has a maximum single dose of 10 mg for pediatric analgesia?

Which drug has a maximum single dose of 10 mg for pediatric analgesia?

• A. Acetaminophen
• B. Fentanyl
• C. Morphine
• D. Ketamine

Answer: (C)

In pediatric analgesia, safety hinges on dosing that provides relief without risking serious side effects like respiratory depression. Morphine is often given with an absolute maximum for a single dose—about 10 mg—even though the dose is usually calculated by weight (for example, around 0.05–0.1 mg/kg). That fixed ceiling helps prevent overdose in a wide range of children and simplifies dosing in emergency settings where weights may vary and rapid decisions are needed. The other drugs use different dosing schemes that don’t rely on a universal 10 mg cap. Acetaminophen dosing is weight-based but typically has a much higher per-dose maximum (often around 15 mg/kg with an upper cap in the several hundreds of milligrams). Fentanyl is given in micrograms per kilogram, with total per-dose amounts far below 10 mg for pediatric patients. Ketamine analgesia is also dosed per kilogram (often 0.25–0.5 mg/kg IV), with per-dose totals that vary by patient size and clinical scenario, and not set at a standard 10 mg ceiling. So, morphine stands out as the drug with a practical fixed maximum single-dose limit near 10 mg for pediatric analgesia.

In pediatric analgesia, safety hinges on dosing that provides relief without risking serious side effects like respiratory depression. Morphine is often given with an absolute maximum for a single dose—about 10 mg—even though the dose is usually calculated by weight (for example, around 0.05–0.1 mg/kg). That fixed ceiling helps prevent overdose in a wide range of children and simplifies dosing in emergency settings where weights may vary and rapid decisions are needed.

The other drugs use different dosing schemes that don’t rely on a universal 10 mg cap. Acetaminophen dosing is weight-based but typically has a much higher per-dose maximum (often around 15 mg/kg with an upper cap in the several hundreds of milligrams). Fentanyl is given in micrograms per kilogram, with total per-dose amounts far below 10 mg for pediatric patients. Ketamine analgesia is also dosed per kilogram (often 0.25–0.5 mg/kg IV), with per-dose totals that vary by patient size and clinical scenario, and not set at a standard 10 mg ceiling.

So, morphine stands out as the drug with a practical fixed maximum single-dose limit near 10 mg for pediatric analgesia.