TABLE 1.

Recovery of cells and ELF from BAL fluid

Parameter	Value for time (h) group:
	3 (n = 4)	5 (n = 3)	8 (n = 4)	12 (n = 4)	24 (n = 4)
No. of cells/liter (SD)	2.8 × 108 (1.6 × 108)	2.4 × 108 (1.7 × 108)	2.1 × 108 (1.3 × 108)	1.9 × 108 (9.8 × 107)	2.3 × 108 (6.7 × 107)
No. of PMNsa (%)	10.5 ± 16.1	4.0 ± 5.2	4.0 ± 5.5	9.0 ± 9.5	10.8 ± 7.6
No. of lymphocytes (%)	4.2 ± 1.5	6.0 ± 5.6	0.5 ± 1.0	2.0 ± 1.8	11.5 ± 12.1
No. of monocytes/macrophages (%)	82.2 ± 16.5	89.3 ± 11.0	95.0 ± 6.8	81.5 ± 11.1	77.5 ± 11.3
No. of eosinophils (%)	0.5 ± 0.6	0.3 ± 0.6	0.0 ± 0.0	0.2 ± 0.5	0.0 ± 0.0
No. of other cellsb (%)	0.2 ± 0.5	0.3 ± 0.6	0.5 ± 0.6	4.0 ± 6.7	0.2 ± 0.5
No. of degenerated cells (%)	2.2 ± 2.6	0.0 ± 0.0	0.0 ± 0.0	3.2 ± 5.3	0.0 ± 0.0
ELF vol (ml)	0.9 ± 0.6	0.8 ± 0.5	1.2 ± 0.6	0.7 ± 0.3	0.7 ± 0.2

^aPMNs, polymorphonuclear leukocytes.

^bOther, unrecognizable cells.