An nurse explains to new parents that their infant has developed Transient Tachypnea of the Newborn (TTN). The nurse understands that risk factors for TTN include which of the following?
Select one:

Choice A Reason: Homans' sign. This is an incorrect answer that refers to a different sign that is not related to pregnancy. Homans' sign is a sign of deep vein thrombosis (DVT) that occurs when there is pain or discomfort in the calf or popliteal region when the foot is dorsiflexed. Homans' sign can be elicited by passive or active movement of the foot, but it is not a reliable or specific indicator of DVT.

Choice B Reason: Chadwick's sign. This is an incorrect answer that refers to a different sign of pregnancy that affects the color of the cervix, not the texture. Chadwick's sign is a sign of pregnancy that refers to the bluish or purplish discoloration of the cervix, vagina, and vulva due to increased blood flow and congestion. Chadwick's sign can be observed by visual inspection of the cervix during the first prenatal visit, usually around 6 to 8 weeks of gestation.

Choice C Reason: Goodell's sign. This is because Goodell's sign is a sign of pregnancy that refers to the softening of the cervix due to increased vascularity and edema. Goodell's sign can be detected by digital examination of the cervix during the first prenatal visit, usually around 6 to 8 weeks of gestation.

Choice D Reason: McDonald's sign. This is an incorrect answer that refers to a different sign of pregnancy that involves the angle of the uterus, not the cervix. McDonald's sign is a sign of pregnancy that refers to the ease of flexing the body of the uterus against the cervix, which creates an angle of 90 degrees or less. McDonald's sign can be assessed by bimanual examination of the uterus during the first prenatal visit, usually around 7 to 8 weeks of gestation.

Choice A Reason: Preterm infant. This is an incorrect answer that confuses TTN with another respiratory condition called respiratory distress syndrome (RDS). RDS is a serious condition where the newborn's lungs are immature and lack sufficient surfactant, which is a substance that reduces surface tension and prevents alveolar collapse. RDS can cause respiratory distress, hypoxia, acidosis, and organ failure. It is more common in preterm infants, especially those born before 37 weeks' gestation.

Choice B Reason: Female infant. This is an incorrect answer that has no evidence or rationale to support it. TTN does not have a gender preference or difference in incidence or severity.

Choice C Reason: GBS status of mother. This is an incorrect answer that relates to another respiratory complication called early-onset neonatal sepsis (EONS). EONS is a bacterial infection that occurs within 72 hours after birth, which can affect multiple organs and systems in the newborn. EONS can be caused by group B streptococcus (GBS), which is a common bacterium that colonizes in some women's vagina or rectum. GBS can be transmited to the newborn during delivery and cause pneumonia, meningitis, or septic shock.

Choice D Reason: Cesarean section. This is because cesarean section is a risk factor for TTN, which is a mild respiratory problem that results from delayed clearance of fetal lung fluid after birth. TTN causes rapid breathing, nasal flaring, grunting, and mild cyanosis. It usually resolves within 24 to 48 hours after birth. Cesarean section can increase the risk of TTN because it bypasses the normal process of labor, which helps squeeze out some of the fluid from the fetal lungs.