Correct Answer: D

Rationale: Dry mucous membranes and an ill appearance are good indicators of dehydration in infants, often correlating with a fluid deficit of at least 5%. Sunken fontanels and poor skin turgor are also indicative but were not options here.

Correct Answer: D

Rationale: As shock progresses and decompensation occurs, confusion and somnolence are indicative of reduced cerebral perfusion. Early signs include thirst and irritability, while confusion and altered consciousness appear as the condition worsens.

Correct Answer: B

Rationale: Hypovolemic shock in children is most frequently caused by blood loss, which can result from trauma, surgery, or gastrointestinal bleeding. Sepsis and anaphylaxis can lead to different types of shock (septic and anaphylactic), and heart failure is related to cardiogenic shock.

Correct Answer: D

Rationale: The correct answer is D, Hemophilus influenzae type B (Hib) vaccine. Hib vaccine is crucial in preventing epiglottitis, a serious respiratory condition caused by Haemophilus influenzae type b bacteria. This vaccine is recommended for toddlers to protect them from developing epiglottitis. Choices A, B, and C are incorrect because while they are important vaccines for children, they do not specifically target the prevention of epiglottitis, unlike the Hib vaccine.

Correct Answer: C

Rationale: The correct answer is C: Airway obstruction. When planning nursing care for an infant with Meconium aspiration syndrome, a primary consideration for complications is the potential of airway obstruction. After the passage of meconium into the amniotic fluid, the infant may inhale or swallow the fluid, leading to meconium aspiration into the lower airways and causing a partial airway obstruction. This can result in respiratory distress and hypoxemia. Hypoglycemia (choice A) is a metabolic condition unrelated to meconium aspiration. Bowel obstruction (choice B) with meconium may indicate other conditions like cystic fibrosis or Hirschsprung disease, not directly related to meconium aspiration syndrome. Carbon dioxide retention (choice D) is not a primary consideration in meconium aspiration syndrome; instead, the focus is on addressing the airway obstruction and potential respiratory compromise.