A parent asks the nurse about the risks of secondhand smoke exposure for their toddler. The nurse should emphasize which significant health concern?

The correct answer to the question "A parent asks the nurse about the risks of secondhand smoke exposure for their toddler. The nurse should emphasize which significant health concern?" is Option C: Increased frequency of ear infections and asthma exacerbations..

The other options — A) Increased risk of dental cavities., B) Higher incidence of chronic constipation., D) Decreased appetite and weight loss. — are incorrect for this NCLEX-RN Exam Prep question. As explained above: Secondhand smoke exposure significantly increases a child's risk for respiratory illnesses like asthma exacerbations, bronchitis, pneumonia, and frequent ear infections.