What percentage of pregnant women have chronic asthma?
What happens to vital capacity in pregnancy?
What effect does progesterone have on tidal volume?
What happens to carbon dioxide production in pregnancy?
What happens to residual volume in pregnancy?
Which of the following statements regarding physiologic pulmonary changes in pregnancy is true?
a. Basal oxygen consumption decreases.
b. Ventilation is increased by more frequent breathing.
c. Ventilation is increased because of deeper breathing.
d. Ventilation is increased because of increased chest wall compliance.
A pregnant patient reports asthma symptoms 3 days per week, and she is awakened by these approximately twice per month. Between exacerbations, her FEV1 (forced expiratory volume in 1 second) is ≥ 80 percent of predicted. Her asthma is best classified by which of the following descriptors?