Correct Answer: B

Rationale: Hyperemesis gravidarum is severe, persistent nausea and vomiting during pregnancy that can lead to dehydration and electrolyte imbalances. The priority intervention is to administer intravenous fluids to maintain hydration.

Correct Answer: D

Rationale: Calcium is vital during pregnancy for fetal bone development and to prevent maternal bone loss. The recommended daily intake should be increased to support these needs.

Correct Answer: C

Rationale: The fern test is used to confirm rupture of membranes. A sample of vaginal fluid is examined under a microscope, and the presence of a fern-like pattern indicates the presence of amniotic fluid.

Correct Answer: B

Rationale: An excessive high-pitched cry is a classic sign of neonatal abstinence syndrome, indicating withdrawal from substances such as methadone. Other signs may include irritability and tremors.

Correct Answer: C

Rationale: If routine suctioning with a bulb syringe is ineffective, the next step is to use mechanical suction. This ensures that any obstruction in the airway is cleared. If the newborn's condition does not improve, chest compressions or further interventions may be needed.