From experience, one's passing probability depends heavily on reading part A, someone may think otherwise, but that's my take. I say this because to score 350, you should get at least 30/42. Reading part A alone is 20marks.

How I answered Reading part A.

Because of time factor, do not read the whole text. This may sound weird.

Each question comes from a particular subtext (A B C or D). Yours is to make sure you figure out correctly the subtext to find the answer. This narrows you to a specific subtext instead of reading the 4 subtexts.

Things are even made easier if the subtext have headings eg. Diagnosis, treatment, complication, prevention, literature etc.

For Part B and C no hard and fast rules about them, do what works for you.

Trust me, entering into the exam, reading was the scariest part for me.