The healthcare professional reviews Cindi's health history and finds that she has no history of thrombophlebitis or hypertension and is taking only over-the-counter medication, such as acetaminophen (Tylenol). These data are important because:
a. Estrogens can cause these conditions to develop.
b. Contraceptives have many adverse side effects.
c. Estrogens are contraindicated for patients who have either or both of these conditions.
d. Contraceptives can interact adversely with acetaminophen.