What medical profession deals with the respiratory system?

If an older person went to the doctor with a fever, chills, body aches, and a cough, what would the doctor most likely suspect the person has?

The maximum blood pressure in the upper arm of a healthy person is about 120 mmhg. if a vertical tube open to the atmosphere is connected to the vein in the arm of the person, determine how high the blood will rise in the tube. take the density of the blood to be 1040 kg/m3.

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