What controls the firing of the sinus node to trigger the start of the cardiac cycle?

Mr. Jones is a 55-year-old divorced white male who was recently fired from his job. He lives alone in an apartment, and his sister, who lives nearby, called the police when she found no food in his refrigerator, his house was in shambles, and he threatened to shoot himself. When the police arrived, they placed him on an involuntary hold 5150 for danger to self (DTS). In the ambulance, his blood pressure is 180/96, his pulse is 96, respirations are 20 with pulse ox at 99%, and his temperature is 98.6. He looks down and is moving around a lot in his chair.
Priority discharge planning for Mr. Jones should include: (select all that apply)

Mr. Jones is a 35-year-old male with severe depression and has had failed treatment with SSRIs such as Citalopram (Celexa) and Fluoxetine (Prozac). He has passive suicide ideation and has recently been unemployed after his anergia, poor concentration, and anhedonia. He has also lost 20 lbs in the last 3 months and has a poor appetite. He is scheduled for ECT tomorrow, and you are his nurse.
These non-medication modalities may also be effective for Mr. Jones’ depression, and they include (select all that apply):

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):

Chronic hypertension causes which of the following changes in blood vessels?

If a client has stimulation of the parasympathetic nervous system, which vital signs would the nurse expect?

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.
Some yes or no questions on the geriatric depression scale may include (select all that apply):

What regulates the distribution of fluid between the interstitial and intracellular compartments?

How do brain cells differ from other cells in the body?

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

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)