1- doctors are certified people that practice medicine, they are the ones that diagnose the patient by using their expertise to treat you 2-nurse tend to care for the patients, administrate the medicine and check vitals to report to the doctor 3- technicians tend to assist with the diagnoses test, like testing the blood and tissue samples. They usually work either for the hospital or the physicians 4-radiologist are doctors that specialize in diagnosing either the disease or injury by using medical images (x-ray) 5-pulmonologist tend to mostly just specialize in the reality system (lungs, etc.)
You should wear tight compression outfits to decrease the possibility of drag, especially in an olympic race. You could even wear a swim hat to lower drag from your hair.
Signs of respiratory distress or irregular sounds coming from the respiratory system (coughing, sneezing,wheezing,etc)
Skin color, redness or other clue on the surface of the patient's skin.
Signs of dizziness, lack of awareness, drowsiness, and the general way the patient appears. Do they appear sick, do they appear depressed, anxious, etc.