Which medical history factor may complicate pregnancy and necessitate careful monitoring of cardiac output?

Hypertension is a significant medical history factor that can complicate pregnancy and requires careful monitoring of cardiac output. During pregnancy, the body undergoes various physiological changes, including an increase in blood volume and cardiac output. For individuals with a history of hypertension, these changes can lead to increased risks of maternal and fetal complications, such as preeclampsia and placental abruption.

The presence of hypertension can place additional strain on the cardiovascular system, leading to an increased likelihood of heart issues during pregnancy. Therefore, close monitoring of cardiac output and overall cardiovascular status is essential to manage these risks effectively.

Although asthma, diabetes mellitus, and childhood obesity can all impact pregnancy, they do not directly necessitate the same level of careful monitoring of cardiac output as hypertension does. While managing these conditions is important, hypertension specifically demands vigilant observation of cardiac function due to its immediate implications for both maternal and fetal health.