Implications of Bad Nursing Practices

Mr. Evans, 40 years old, was admitted to the hospital's medical- surgical unit from the emergency department with a diagnosis of acute abdomen. He had a 20-year history of Crohn's disease and had been on prednisone 20mg every day for the past year. Three months ago he was started on the new biological agent etanercept 50mg subcutaneous every week. his last dose was 4days ago. Because he was allowed nothing by mouth (NPO) total parental nutrition was started through a triple lumen central venous catheter line and his steroids were changed to Solu-medrol 60mg by intravenous (IV) push every 6hrs. He was also receiving several IV antibiotics and medication for pain and nausea.
During the next 3 days, his condition worsened. he was in severe pain and needed more analgesics. one evening at 9pm, it was discovered that his central venous catheter line was out. The registered nurse (RN) notified the physician, who stated that a surgeon would come in the morning to replace it. the nurse failed to ask the physician what to do about the IV steroids, antibiotics and fluids replacement, the client was still NPO. She also failed to asl about the etanercept. At 7am, the night nurse noticed that the client had no urinary output since 11pm the night before. she documented that the client had no urinary output but forgot to report this information to the nurse assuming care responsibilities on the day shift.
the client's physician made rounds at 9am. the nurse for Mr. evans did not discuss the fact that the client had not voided since 11pm, did not request orders for alternative delivery of steroids and antibiotics, and did not ask about administering the etanercept. at 5pm that evening, while mr. evans was having a computer tomography scan, his blood pressure dropped to 70mmHg, and because no one was in the scan room with him, he coded. he was transported to the intensive care unit and intubated. he developed severe sepsis and acute respiratory distress syndrome.
1- List all the problems you can find in the nursing care in this case.
2- What were the nursing responsibilities in reporting information.
3-what do you think was the possible cause of the drop in mr.evans' blood pressure and his subsequent code.
4- if you worked in risk management, how would you discuss this situation with the nurse manager and the staff.
Book: essentials of nursing leadership & management by Weiss, Tappen and Grimley.
I attached pictures of the chapter. Please use in text citations. Thank