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Pulmonary Disorders

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What percentage of pregnant women have chronic asthma?

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a. 1%

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b. 4%

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c. 14%

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d. 20%

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What happens to vital capacity in pregnancy?

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a. Increases by 20%

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b. Decreases by 25%

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c. Increases by 40%

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d. Decreases by 45%

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What effect does progesterone have on tidal volume?

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a. Increases by 20%

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b. Decreases by 25%

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c. Increases by 40%

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d. Decreases by 45%

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What happens to carbon dioxide production in pregnancy?

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a. Increases by 20%

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b. Decreases by 25%

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c. Increases by 30%

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d. Decreases by 40%

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What happens to residual volume in pregnancy?

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a. Increases by 20%

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b. Decreases by 20%

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c. Increases by 40%

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d. Decreases by 40%

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Which of the following statements regarding physiologic pulmonary changes in pregnancy is true?

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a. Basal oxygen consumption decreases.

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b. Ventilation is increased by more frequent breathing.

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c. Ventilation is increased because of deeper breathing.

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d. Ventilation is increased because of increased chest wall compliance.

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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?

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a. Intermittent

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