International Board of Certified Lactation Consultant (IBCLC) Practice Exam

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How is full term defined in terms of weeks of gestation?

  1. Before 37 weeks

  2. Between 37 to 42 weeks

  3. Between 41 to 41 6/7 weeks

  4. After 42 weeks

The correct answer is: Between 37 to 42 weeks

Full term is defined as a pregnancy that has reached between 37 to 42 weeks of gestation. This time frame encompasses the period during which the fetus experiences optimal development, allowing for proper growth and the best chance for healthy outcomes at birth. Births occurring within this range are associated with fewer complications compared to those categorized as preterm or postterm. The term "full term" reflects the recognition that infants born before 37 weeks are considered preterm, while those born after 42 weeks are classified as postterm, which can increase the risks for both the mother and the baby. Therefore, the option that captures the comprehensive period of pregnancy classified as full term is the one that includes gestation from 37 weeks up to, but not including, 42 weeks. This definition serves as a guideline in obstetrics for assessing pregnancy duration and planning for delivery.