help with case study

I'm new to this sites. please can someone help me with the following case study questions. I will rely much appreciate it. Thanks!

A 75 year old female is admitted with complications of shortness of breath, increasing with exertion and at night, feeling fatigue, and difficulty sleeping. Upon your assessment you note she has 2+ pitting edema and brownish discoloration of lower extremities, crackles and wheezing in lungs and is in a tripod position to breathe with a dry hacking cough and overweight. Vital signs are blood pressure of 168/102, temperature is 101.4, pulse 102, respirations 20 and labored, pulse oximeter reads oxygen saturation is 88%. She is cyanotic and cool to touch. She reports a 20 year history of Type 2 diabetes, smokes approximately 3 packs a week for 50 years. A chest ex-ray reports left lower lobe pneumonia and enlarged heart. IV antibiotics are initiated, an echocardiogram is ordered and she is put on oxygen 2 liters.

1. Based on the information you obtained and your assessment what do you suspect is the underlying medical diagnosis?
   
2. What information given led you to the diagnosis?
   
3. What are two complications the patient could be at risk for secondary to her pneumonia?
   
4. How do smoking and diabetes contribute to the patient’s underlying medical diagnosis you identified?
   
5. What laboratory tests would suspect be ordered and why?
   
6. What dietary restrictions would be indicated for the patient?
   
7. What class of medications do you expect the patient to be taking for this underlying medical diagnosis you identified?