Table 2. Mean postoperative MME requirements for different peak pain levels in PACU.

Peak Pain in PACU	Mean Postoperative MME	MME ranges for opioid requirement categories
No pain (Pain score = 0)	1	None/very low: 0–3
Mild (Pain score 1–3)	5	Low: 3–11
Moderate (Pain score 4–6)	17	Medium: 11–25
Severe (Pain score 7–10)	34	High: > 25