You have just examined a 28-year-old primigravida in spontaneous labor, Examination findings are 0/5 palpable per abdomen, the cervix is 7 cm dilated, cephalic presentation, -1 station, anterior fontanelle palpable with orbital ridges and nasal bridge felt anterior. What is the presenting diameter of the fetus?
You have just examined a 28-year-old primigravida in spontaneous labor, Examination findings are 0/5 palpable per abdomen, the cervix is 7 cm dilated, cephalic presentation, -1 station, anterior fontanelle palpable with orbital ridges and nasal bridge felt anterior. What is the presenting diameter of the fetus?
Explanation
Based on the examination findings provided, the presenting diameter of the fetus is likely the suboccipitofrontal diameter.
The suboccipitofrontal diameter refers to the diameter of the fetal head from the subocciput (the lowest point on the back of the head) to the center of the frontal bone.
In the occipitoanterior position, this diameter is the presenting diameter of the fetal head during labor.