The nurse, working in labor and delivery, performs a sterile vaginal exam on a laboring woman. During the exam, she feels a loop of pulsating cord in the vagina. The nurse would anticipate:
Select one:

Choice A Reason: Macrosomic newborn. This is a correct answer that describes a possible complication of post-term pregnancy. A macrosomic newborn is a newborn that weighs more than 4000 grams or 8 pounds 13 ounces at birth. It can occur in post-term pregnancies due to prolonged exposure to maternal glucose and insulin. It can increase the risk of birth injuries, shoulder dystocia, cesarean delivery, and hypoglycemia.

Choice B Reason: Intrauterine growth restriction (IUGR). This is a correct answer that indicates a potential problem of post-term pregnancy. IUGR is a condition where the fetal growth is slower than expected for gestational age. It can occur in post-term pregnancies due to placental insufficiency, aging, or calcification, which can impair nutrient and oxygen delivery to the fetus. It can increase the risk of fetal distress, hypoxia, acidosis, and stillbirth.

Choice C Reason: Umbilical cord prolapse. This is an incorrect answer that does not reflect a risk of post-term pregnancy, but rather a risk of other factors such as prematurity, low birth weight, breech presentation, multiple gestation, polyhydramnios, or artificial rupture of membranes.

Choice D Reason: Meconium Aspiration Syndrome (MAS). This is a correct answer that denotes a possible complication of post-term pregnancy. MAS occurs when fetal stool (meconium) enters into the lungs before or during birth, causing airway obstruction, inflammation, and infection. MAS usually affects term or post-term infants who experience fetal distress or hypoxia in utero. It can cause respiratory distress syndrome (RDS), persistent pulmonary hypertension (PPHN), or chronic lung disease (CLD).

Choice A Reason: Daily weight. This is an incorrect answer that indicates a valid parameter to assess hydration status. Daily weight is a measure of the body mass that can reflect changes in fluid balance. Daily weight can help detect fluid loss or gain in premature infants, who are more prone to dehydration or overhydration due to immature renal function and high insensible water loss.

Choice B Reason: Consistency of stool. This is an incorrect answer that indicates a valid parameter to assess hydration status. Consistency of stool is a measure of the texture and form of feces that can reflect changes in fluid intake and absorption. Consistency of stool can help identify diarrhea or constipation in premature infants, who are more susceptible to gastrointestinal problems such as necrotizing enterocolitis or feeding intolerance.

Choice C Reason: Volume of urine output. This is an incorrect answer that indicates a valid parameter to assess hydration status. Volume of urine output is a measure of the amount of urine produced and excreted by the kidneys that can reflect changes in fluid balance and renal function. Volume of urine output can help monitor hydration status and kidney function in premature infants, who are more vulnerable to fluid overload or deficit and renal impairment.

Choice D Reason: Blood pH. This is because blood pH is a measure of the acidity or alkalinity of the blood, which reflects the balance between carbon dioxide and bicarbonate in the body. Blood pH is not a direct indicator of hydration status, which refers to the amount of water and electrolytes in the body. Hydration status can affect blood pH, but blood pH can also be influenced by other factors such as respiratory or metabolic disorders.