A nurse is providing teaching to a client who is experiencing preterm contractions and dehydration. Which of the following statements should the nurse make?

Rationale: A. "Dehydration is caused by a decreased hemoglobin and hematocrit.": Dehydration typically results in increased, not decreased, hemoglobin and hematocrit values because fluid loss concentrates red blood cells. Low values would suggest anemia or blood loss rather than dehydration. B. "Dehydration is associated with gastroesophageal reflux.": While dehydration may worsen nausea or fatigue, it is not directly linked to gastroesophageal reflux. GERD in pregnancy is usually caused by hormonal relaxation of the lower esophageal sphincter and increased intra-abdominal pressure from the enlarging uterus. C. "Dehydration is treated with calcium supplements.": Calcium supplements are unrelated to treating dehydration. Management focuses on restoring fluid balance through oral or intravenous hydration to maintain uteroplacental perfusion and reduce uterine irritability. D. "Dehydration can increase the risk for preterm labor.": Dehydration leads to increased secretion of antidiuretic hormone (ADH), which can stimulate oxytocin release and uterine contractions. Correcting dehydration helps reduce uterine activity and lowers the risk of preterm labor in pregnant clients.