Mike is a 68-year-old construction foreman. He comes to your clinic today complaining of a productive cough and some shortness of breath for the past four days. He has a fever of 101 °F. His O2 sat is 93% on room air. His respiratory rate is 26/minute, his pulse is 102 and regular, and his BP is 158/78. He is married, a nonsmoker, and still works. He had his influenza vaccine but has not had his pneumonia 23 vaccine yet. He is alert and oriented × 3. A stat office set of labs demonstrate a white count of 18,000 with a left shift, K+ of 4.2, Na+ of 136, GFR of >60, creatinine of 1.1, and BUN of 14. His only medications are atorvastatin 10 mg for hyperlipidemia and valsartan 160 mg for hypertension.