Correct Answer: D

Rationale: Providing positive feedback is essential in reinforcing correct behaviors. By praising the mother for properly administering the ferrous sulfate to her 11-month-old, the nurse can encourage her to continue following the correct procedure. This positive reinforcement can boost the mother's confidence and adherence to the recommended administration method, ultimately benefiting the infant's health.

Correct Answer: B

Rationale: When administering ear drops to a child under three years old, it is essential to pull the earlobe down and back. This positioning helps straighten the external auditory canal, facilitating the proper administration of the ear drops. Pulling the earlobe down and back in young children aims to ensure that the medication reaches the intended area for optimal effectiveness.

Correct Answer: B

Rationale: Celiac disease is managed with a strict gluten-free diet, necessitating the avoidance of foods containing wheat, barley, and rye. Gluten is found in these grains and can trigger an immune response in individuals with celiac disease, leading to damage to the small intestine. Therefore, it is essential for individuals with celiac disease, including children, to carefully avoid gluten-containing foods to maintain their health and well-being.

Correct Answer: D

Rationale: The presence of swollen red spots and fluid-filled blisters may indicate a contagious condition. Implementing transmission precautions is crucial to prevent the spread of the infection to others in the clinic setting.

Correct Answer: A

Rationale: Tachycardia is a common early sign of dehydration in infants. It is important for healthcare providers to be vigilant in monitoring infants with these symptoms, as prompt intervention is crucial to prevent further complications.