Spent a couple of hours with my dad. All vitalsigns are stable, he is breathing on his own with supplementary oxygen via mask. And his color is much better. Yesterday he was ashen when the paramedics arrived. Spoke with the pulmonologist who said he had a small basal infiltrate in his lungs. Could mot rule out a possible infectious process. In other words, he may have pneumonia. They've taken bloodtests, bloodgases, sputum samples, chest xrays, and they started IV antibiotics. Now it's just wait and see...