Have to use transitional words for your work to flow. In the beginning middle end. you don't want to seem as if it all goes together, you don't need evidence or commentary that doesn't make since. transition words are very needed to help your paper make since and flow all together.
I’m not a hundred percent sure, but off intuition I would say
Check the scene for hazardous conditions
Call EMS with information about the accident.
Check the vital signs of the patient
Administer first aid
Photoplethysmography is used to track of heart rate during a workout
