2 C 4 5 6 T CNAS 3 C Cancer pain management in adults patients 9 A 2 C 4 9 T CNAS 1 GB T 1 1 2009 I T CNAS 1 1 3 C pain cancer pain background pain 12h breakthrough pain dose titration well controlled pain 3d 3 NRS numerical rating scale VRS verbal rating scale T CNAS 1 2 FPS R faces pain scale revised BPI brief pain inventory PCA patient controlled analgesia a0NRS 0 10 11 0 10 1 b0VRS 4 1 c0 FPS R 1 A 0 2 0 10 T CNAS 1 3 BPI B 8h 24h 1 2 1 C D T CNAS 1 4 A 0 1 2 0 2 0 10 T CNAS 1 5 B BPI 1 1 2 2 3 24h 1 10 4 24h 1 10 5 24h 1 10 6 1 10 7 8 24h T CNAS 1 6 0 10 20 30 40 50 60 70 80 90 100 9 24h 1 1 10 2 1 10 3 1 10 4 1 10 5 1 10 6 1 10 7 1 10 T CNAS 1 7 C C 1 a b a b a b c 2 5cm d 15min 1 2h C 2 a b 60min a b c 30min a b c 15min a b c d e 72h PCA a PCA b c PCA d PCA T CNAS 1 8 D D 1 a 60 b c a 60 b a 60 b c 2 a b a b D 2 a b c 2h d e f a b c d 1 9 e 1w a b c 8 min a b c a b c d e a b c d e