A change occurring in a pregnant woman that is indicative of a potential disorder is a. increased urinary protein. b. 30% to 40% increase in cardiac output. c. increased metabolic rate. d. increased oxygen consumption.

a. increased urinary protein.

Explanation:

During the periods of the pregnancy, there are certain changes that take place in the body of the female and some of them are related to the health issues like the iron deficiency and high blood pressure and miscarriage. And infections and other gestational related problems and in case the increase of the protein flow from the body form the urinary tract due to consumption and diet patterns can be harmful to the body as can because of the development of infractions.