A. 1Hr Lung Wet to Dry Ratios. There was a group wise statistically significant difference across age with old groups having significantly greater lung wet to dry ratio than young. The Young HVT-HF group was significantly greater than in the Young Non-Ventilated group. The Old HVT-LF group was significantly less than in all other old groups respectively. Data are presented as mean +/− st.dev N = 4 for Young Non-Vent, 4 for Young HVT – HF, 4 for Young HVT – LF, 4 for Old Non-Vent, 4 for Old HVT – HF, 5 for Old HVT – LF. B. 4Hr Lavage Protein Concentration. The Old HVT-HF group concentration was significantly greater than that of all other old groups respectively. N = 4 for Young Non-Vent, 4 for Young LVT – HF, 7 for Young HVT – HF, 3 for Young HVT – LF, 4 for Old Non-Vent, 4 for Old LVT – HF, 4 for Old HVT – HF, 5 for Old HVT – LF *p<0.05.