What are some other tests that could help delineate the cause of shortness of breath?

Part 1: Pneumonia Based on File Part Pneumonia, answer the questions, as instructed below:Critical Thinking Questions1. What are some other tests that could help delineate the cause of shortness of breath?2. To what antibiotic is Klebsiella commonly sensitive?3. Should antibiotics be provided empirically upon the initial visit or should antibiotics be withheld until culture and sensitivity reports are available?4. What are the potential social problems associated with this man’s care and future discharge?5. What do the abnormal liver enzymes tell you about his alcohol use?Part 2: Cholelithiasis Based on File Cholelithiasis, answer the questions, as instructed below: Critical Thinking Questions1. Why was the patient’s urine dark-colored?2. What is the difference between a direct and an indirect type of hyperbilirubinemia?3. Mention the differential diagnosis of Cholelithiasis. Explain4. What is the treatment option for this patient? Why?5. Mention the risk factors of cholelithiasis.