A nurse in a provider's office is reinforcing teaching about cigarette smoking with a client. Which of the following adverse effects should the nurse include in the teaching?

Choice A Reason:

Posterior fontanel closed is incorrect, it is normal for the posterior fontanel to close earlier than the anterior fontanel, usually by 2 to 3 months of age.

Choice B Reason:

Anterior fontanel closed is correct. The anterior fontanel is the soft spot on the top of a baby's head, and it typically closes between 12 to 18 months of age. If the anterior fontanel is closed in a 4-month-old infant, it is considered an early closure, which can be a cause for concern. Early closure of the anterior fontanel can be associated with various underlying medical conditions, such as craniosynostosis (premature fusion of the skull bones) or dehydration.

Choice C Reason:

Plays with toes is incorrect. At 4 months of age, infants are typically developing their motor skills, and playing with their toes is a sign of normal development.

Choice D Reason:

Moves objects to mouth is incorrect. At this age, infants often explore their environment by bringing objects to their mouths as part of their sensory exploration and development.

The shoulder harnesses of the car seat should be positioned at or slightly below the level of the infant's shoulders. This helps secure the infant properly in the car seat and provides appropriate protection in the event of a crash.

Car seats for infants should not be positioned at a 90° angle. Instead, they should be installed at a reclined angle, as recommended by the car seat manufacturer. The specific recline angle can vary depending on the car seat model and the age of the child.

Additional cushions or support devices should not be placed in the car seat unless specifically recommended by the car seat manufacturer. Extra padding or cushions can interfere with the proper fit of the harness and compromise the safety of the infant.

It is not safe to have an infant's car seat in the front seat if there is an active airbag. The safest place for an infant's car seat is in the rear seat, preferably in the middle position. If the car does not have a rear seat, it is important to disable the airbag if the car seat must be placed in the front seat.