What effect does electrical cardioversion have on fetal heart during pregnancy?

Electrical cardioversion is a procedure used to restore a normal heart rhythm by delivering a controlled electrical shock to the heart. In the context of pregnancy, the concern for the fetus's well-being during such procedures is significant.

The correct answer is that electrical cardioversion does not disturb or damage the fetal heart. This is supported by the understanding that when proper precautions are taken, the electrical energy used in cardioversion typically does not reach the fetus at levels that would cause harm. The major reason for this is that the electrical shock is delivered externally in a focused manner, targeting only the mother’s heart.

Additionally, studies have shown that the fetal heart rate usually remains stable during the procedure, indicating that the fetus is not negatively impacted by the electrical activity associated with cardioversion. For these reasons, while fetal monitoring during the procedure is recommended, the risk to the fetal heart itself from electrical cardioversion is minimal when done appropriately.

Other choices suggest concerns that are not supported by medical evidence or established clinical guidelines.