What controls the body's immune response?

Edward is a 20-year-old college student. The student’s roommates tell the school nurse that their friend has seemed more moody than usual since a grandparent died of a COVID-19 infection last month. They also report that the patient sleeps all day and sometimes doesn’t wake up until noon or later. They tell the nurse that they invite the patient to go with them to the dining hall most meals, but he declines most of the time and, when he does go, he will only eat a few bites. Edward admits to feeling “empty most days” in the last month and has skipped many of his classes due to feeling “too tired to attend.” Edward reports that he “doesn’t do much most days” and that “nothing is really fun anymore.”
The nonverbal cues that therapy and medication are working for Edward include (select all that apply):

What controls the body's immune response?

What is the CORRECT statement of how blood flows through the heart?

Where does the exchange of gasses occur in the lungs?

Mr. Greene is an 85-year-old male placed on a 5150 by the crisis team after his nurse called them. He has taken a fall in his driveway after his dialysis. He has end-stage kidney disease, diabetes, and a history of myocardial infarction 4 years ago. He was living alone until his home health nurse found him crying out in pain, clutching onto his leg in the kitchen. “I’m so tired,” he says.
You are assessing Mr. Greene’s ability to self-administer insulin. What actions observed and documented by the nursing staff make him a candidate for self-administration of insulin safely? (select all that apply)

What would cause a decrease in the quantity of circulating red blood cells?

What is the principle function of blood flow in the cardiovascular system?

What controls the rate and depth of respiration in a normal adult?

Asthma results in what change in the respiratory system?

The body's ability to correct an excess or deficit of a metabolic acid depends on normal function of what system?