Table 1.

Immunoglobulin levels at presentation, 3 and 6 years before pulmonary visit

	Reference ranges (mg/dl)	Current levels	3 years prior	6 years prior
IgG	844–1912	564	620	835
IgA	68–423	32.2	51	213
IgM	50–196	< 4.3	8	63

Ig immunoglobulin