A nurse is admitting an adolescent who has rubella.

Which of the following actions should the nurse take?

Choice A reason

The anterior fontanel is open is the correct answer. An expected finding in an 8-month-old infant is that the anterior fontanel (the soft spot on the top of the baby's head) is open. The fontanelles are spaces between the bones of an infant's skull that allow for the baby's brain to grow and the skull to mould during birth.

The anterior fontanel typically remains open until the baby is around 18 to 24 months old, with the closure process starting sometime after 9 months of age. Therefore, at 8 months of age, it is normal for the anterior fontanel to still be open.

Choice B reason:

Both fontanels are the same size is incorrect. Both fontanels are usually not the same size. The anterior fontanel is larger and diamond-shaped, while the posterior fontanel is smaller and triangular.

Choice C reason:

The posterior fontanel is open is incorrect. The posterior fontanel, located at the back of the baby's head, usually closes earlier than the anterior fontanel. It typically closes within the first few months after birth, so it is not expected to be open at 8 months of age.

Choice D reason

Both fontanels show molding is incorrect. Molding refers to the temporary shaping of the baby's head during birth due to the pressure exerted during the passage through the birth canal. By 8 months of age, the molding typically resolves, and the baby's head should have a more rounded appearance.

The correct answer is choice C: “Do you have thoughts of harming yourself?”.

This is the priority question for the nurse to ask the client because it assesses the client’s risk for suicide, which is a serious and potentially life-threatening complication of conduct disorder. The nurse should use a direct and nonjudgmental approach when asking about suicidal ideation and plan.

Choice A: “How do you get along with your peers at school?” is wrong because it is not the most urgent question to ask the client.

While it is important to assess the client’s social relationships and possible peer rejection, this can be done after addressing the client’s safety and mental status.

Choice B: “Do you have a criminal record?” is wrong because it is not relevant to the client’s current condition and might make the client feel defensive or stigmatized.

The nurse should avoid asking questions that imply blame or judgment and focus on the client’s strengths and coping skills.

Choice D: “How do you manage your behavior?” is wrong because it is not appropriate for the nurse to ask the client in an emergency department setting.

This question might imply that the client is responsible for their conduct disorder, which is a complex and multifactorial mental health condition. The nurse should collaborate with the client and their family to develop a behavior management plan that involves positive reinforcement, limit setting, and consistent consequences.

Normal ranges: According to the DSM-5, conduct disorder is characterized by a persistent pattern of behavior that violates the rights of others or societal norms.

The symptoms of conduct disorder include aggression, deceitfulness, destruction of property, serious rule violations, and lack of remorse.

Conduct disorder can cause significant impairment in social, academic, or occupational functioning. The prevalence of conduct disorder is estimated to be 4% among children and adolescents.

The risk factors for conduct disorder include genetic factors, neurobiological factors, environmental factors, and psychological factors.