Final answer:
Fetal macrosomia refers to a baby with a birth weight over 4,000 g. Diagnosis methods and delivery options differ depending on the definition. Option a defines macrosomia through ultrasound, with cesarean section delivery, while option b diagnoses through clinical exam and allows for vaginal birth. Option c and d have higher weight thresholds and involve different diagnostic methods and delivery techniques.
Step-by-step explanation:
Fetal macrosomia refers to the condition where a baby is born with a birth weight greater than 4,000 g. There are different definitions and diagnostic methods for fetal macrosomia, as well as varying delivery options. In option a, fetal macrosomia is defined as a birth weight over 4,000 g and diagnosed through ultrasound, with delivery carried out through cesarean section. Option b also defines fetal macrosomia as a birth weight over 4,000 g, but it is diagnosed through clinical examination, and delivery is done vaginally. Option c has a higher threshold for fetal macrosomia, with a definition of birth weight over 4,500 g, and diagnosis through amniocentesis. Delivery in this case is induced. Lastly, option d also defines fetal macrosomia as a birth weight over 4,500 g, but it is diagnosed through x-ray, with delivery carried out using forceps extraction.