TABLE 1.

Culture media used for the detection of CF-related pathogens

Culture medium	No. of laboratories reporting use of the indicated culture medium (%)
Columbia blood agar	41 (91)
Chocolate agara	45 (100)
MacConkey agar	32 (71)
Selective media for:
S. aureusb	31 (69)
P. aeruginosac	19 (42)
BCCd	41 (91)

^aChocolate agar alone (n = 18) and chocolate agar with bacitracin (n = 18), oleandomycin (n = 8), or vancomycin (n = 1).

^bColumbia blood agar with nalidixic acid (n = 1) or aztreonam (n = 1), colistin-nalidixic acid agar (n = 7), mannitol salt agar (n = 13), CHROMagar Staph. aureus (n = 5), S. aureus ID agar (n = 3), and brain heart infusion NaCl agar (n = 1).

^cPseudomonas isolation agar (n = 3), cetrimid agar (n = 15), and cetrimid broth (n = 1).

^dBurkholderia cepacia selective agar (n = 27) (29), B. cepacia agar (n = 1) (16), cepacia medium (n = 5) (30), Oxoid B. cepacia agar (n = 1) (31), and oxidative-fermentative polymyxin B-bactriacin lactose agar (n = 7) (32). One laboratory did not specify the medium used for the culture of BCC.