Which of the following is NOT assessed during the first antenatal visit?

During the first antenatal visit, the focus is primarily on establishing the mother's health and assessing factors that could affect the pregnancy. Key assessments typically carried out include urinalysis to check for infections or conditions like diabetes, blood tests such as the rapid plasma reagin (RPR) to screen for syphilis, and a hemoglobin (Hgb) count to evaluate for anemia.

The measurement of the birth weight of the child is not conducted during this initial visit because the child has not yet been born. Birth weight is only assessed after delivery. Therefore, this option is not included in the routine assessments aimed at understanding the health of the mother and the unborn child during the first antenatal appointment.