Cryoglobulinemia due to Hepatitis C with Pulmonary Renal Syndrome

Table 1

Lab	1st admission	2nd admission	3rd admission
BUN (mg/dL [mmoL/L])	166 [59.3]	112 [40.0]	50 [17.8]
Creatinine (mg/dL [µmoL/L])	2.7 [239]	2.9 [256]	1.7 [150]
Urine protein/Cr	1.76	2.57	8.6
Rheumatoid factor	7841 IU/mL	1900 IU/mL	68 IU/mL
C4 (mg/dL [g/L])	<2 [<0.02]	<2 [<0.02]	<2 [<0.02]
C3 (mg/dL [g/L])	88 [0.88]	68 [0.68]	113 [1.13]