Are the following sentences punctuated correctly?

Question

The lung exam showed no rales, rhonchi or wheezes.

She has a history of cough, not productive, that keeps her awake at night.

The patient is a well-developed, well-nourished, badly sunburned cantankerous white male.

Answer 1

#'s 1 and 2 are correct.

#3 needs a comma after every adjective except the last one.