In active stage, cervix must dilate at least ______ cm per hour.

In active stage, cervix must dilate at least ______ cm per hour.

• A. 0.5-1 cm per hour
• B. 1-2 cm per hour
• C. 2-3 cm per hour
• D. 3-4 cm per hour

Answer: (B)

In active labor, progress is judged by how quickly the cervix dilates per hour. A rate of about 1 cm per hour is the typical minimum expected, and many guidelines lump 1–2 cm per hour as a common range to reflect normal variation among women. This threshold helps distinguish adequate progress from protracted labor or arrest. So the best choice gives a range that includes the commonly cited minimum and allowances for normal variation. Rates slower than about 1 cm/hour suggest slower progress and potential dystocia, while much faster rates aren’t required to meet the minimum standard.

In active labor, progress is judged by how quickly the cervix dilates per hour. A rate of about 1 cm per hour is the typical minimum expected, and many guidelines lump 1–2 cm per hour as a common range to reflect normal variation among women. This threshold helps distinguish adequate progress from protracted labor or arrest. So the best choice gives a range that includes the commonly cited minimum and allowances for normal variation. Rates slower than about 1 cm/hour suggest slower progress and potential dystocia, while much faster rates aren’t required to meet the minimum standard.