The primary care provider determines that Ms. A has hypothyroidism and orders a pregnancy test for her because she cannot recall the time of her last menstrual period. Ms. A wants to know why this is so important. She states, "I know I’m not pregnant. I have been very careful since the birth of my son." What is your most appropriate response?

Presence or absence of Pregnancy can only be confirmed through a test. It is very important to know because of the danger of hyperthyroidism in pregnancy

Explanation:

Ms. A could be pregnant without know especially if she is sexually active, and only test can prove that. Hyperthyroidism can cause grave complications during pregnancy. Hence the need to be sure if Ms. A is not pregnant

the answer to your question is,

d. when a child was born.

-mabel < 3

are there any options?