Table 1.

Information contained in rules for one form of parenteral methotrexate and a formulation of acetaminophen. The most specific rule that applies to the order is applied to generate the alert. Note that some rules for a specific amount (mg) to be given, and others are computed based on body surface area.

Medication	Route	Rule Conditions
		Patient age range (days)	Patient weight (kg)	Gestational age (days)	Dose range or maximum dose for single dose
Methotrexate 25 mg/mL injection	Intravenous	0 – 4,380			5–30 mg/m2
		4,381 – 36,135			5–50 mg/m2
	Intrathecal Oral	0 – 120			3 mg
		121 – 365			6 mg
		366 – 730			8 mg
		731 – 1,095			10 mg
		1,096 – 3,285			12 mg
		3,286 – 36,135			12–15 mg
Acetaminophen 160 mg/5 mL oral solution	0ral	0–9		196–230	12 mg/kg
				231–350	15 mg/kg
		10–29			15 mg/kg
		30–4379	0–9.999		15 mg/kg
		30–4379	10–40		15 mg/kg
		30–4379	40.001–100		1000 mg
		4380–99,999			1000 mg