In assessing uterine activity, if contractions are every 4-5 minutes lasting 40-60 seconds with a resting tone of 8-10 mm Hg, peak contraction intensity is:

To determine the peak contraction intensity in this scenario, it’s essential to understand how to calculate the intensity of contractions based on the information provided. Uterine contractions are typically assessed by checking their frequency, duration, and intensity. The resting tone of 8-10 mm Hg indicates the baseline pressure of the uterus when it is not contracting.

When a contraction occurs, the intensity is measured as the difference between the peak pressure during the contraction and the resting tone. Given the contraction pattern of occurring every 4-5 minutes and lasting 40-60 seconds, the intensity is expected to be significant but not excessively high, suggesting active labor.

To estimate the peak contraction intensity, it is common for the intensity during active labor to range from 25-35 mm Hg above the resting tone, depending on the stage of labor and the individual patient’s response. So, if the resting tone is around 8-10 mm Hg, a peak contraction intensity of 25-30 mm Hg would be a reasonable estimate. This range indicates a strong contraction, consistent with active labor, but still within a manageable level without indicating distress.

Thus, the correct response indicates that the peak contraction intensity is likely within the range of 25-30 mm Hg,