Answer:
David is a nurse.
Explanation:
In order to know the answer, let's analyze what a nurse's job is.
Nurse- A person who practices the profession of Nursing.
Nursing- This is a part of the healthcare profession that focuses on individual, family and community care, so they can <u><em>attain, maintain or recover an optimal health or good quality of life.</em></u>
<u>What does a nurse do?</u>
Nurses play a significant role in the health care industry. They function as communicators between patients and doctors. They provide total care for the patient such as monitoring the<u> vital signs, </u>administering medications and assisting the doctors during surgeries. They also take down several notes (Nurses' Notes) on their day-to-day steps of caring for the patient.
Vital Signs- These are the important medical signs being monitored in the hospital <em>(body temperature, heart rate, pulse rate and blood pressure).</em>
Now, that you know about the nurse and the job that he does, then it is clear above that David is a nurse.<u><em> </em></u><u><em>He helps during operation, he monitors the vital signs and he also takes down notes which he collaborates with the doctor later.</em></u>