Assertion (A): Ferrous sulphate should not be given to pregnant women who are at high risk of PIH.
Reason (R): Ferrous sulphate increases free radicals which induce serum lipid peroxide formation.
This question links routine iron supplementation to the oxidative stress theory behind pregnancy-induced hypertension (PIH).
PIH is linked to oxidative injury to blood vessel walls, and the iron-driven free radical pathway described in the reason is precisely the mechanism used to justify caution with iron in high risk women. So the reason is not just true, it is the actual explanation for the assertion.
Let's summarize:
So the final answer is: both A and R are true, and R is the correct explanation of A.