In aificial rupture of membrane , fetal hea shows :
**Core Concept**
Artificial rupture of membranes (AROM) is a medical procedure where the healthcare provider intentionally breaks the water to initiate labor. This action has significant effects on the fetal heart rate and uterine contractions.
**Why the Correct Answer is Right**
During AROM, the sudden release of amniotic fluid can cause a brief increase in fetal heart rate due to the sudden change in pressure and the resulting stress response. This is often accompanied by a variable deceleration pattern, which is a decrease in fetal heart rate below the baseline, typically occurring after a contraction and returning to baseline after the contraction has ended. This is because the umbilical cord can be compressed by the presenting fetal part or by the cervix, leading to a decrease in blood flow and oxygenation to the fetus.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not a typical response of the fetal heart rate to AROM. While an increase in fetal heart rate can occur, it's not the most common or characteristic response.
**Option B:** This is a description of a normal fetal heart rate pattern and is not specific to AROM.
**Option C:** This option is a response to fetal distress, which may be caused by various factors, but is not a direct result of AROM.
**Clinical Pearl / High-Yield Fact**
During AROM, it's essential to closely monitor the fetal heart rate for any signs of distress, such as variable decelerations, late decelerations, or bradycardia. This allows for timely intervention to ensure a safe and healthy outcome for the mother and the fetus.
**Correct Answer: C. Variable deceleration pattern.**