A nurse is reinforcing teaching with a client who has cancer and is undergoing external radiation therapy. Which of the following instructions should the nurse include in the teaching?

A) Rolls from back to abdomen: Rolling from back to abdomen is a typical developmental milestone for a 4-month-old infant. By this age, infants usually have increased muscle strength and coordination, allowing them to start rolling over. This movement helps build their core strength, which is important for later developmental milestones like sitting up and crawling.

B) Moves objects to mouth: It is common for a 4-month-old to move objects to their mouth as they begin exploring the world around them. This action is a key part of sensory development and helps infants develop their hand-to-mouth coordination. Additionally, this behavior assists in teething and the development of oral motor skills.

C) Anterior fontanel closed: The anterior fontanel normally closes between 12 to 18 months of age. If it is closed at 4 months, it may suggest abnormal cranial growth, such as craniosynostosis, where the sutures of the skull close too early. This could lead to increased pressure on the brain, which can cause developmental delays or other complications, so the provider should be notified for further assessment.

D) Posterior fontanel closed: The posterior fontanel typically closes by 2 to 3 months of age. If it is closed by 4 months, it is completely normal and indicates proper cranial development. The closing of the posterior fontanel helps ensure the skull's bones are fusing together as expected, and it does not raise any concerns at this stage.

A) "Ensure that the negative air pressure is active for the client’s room.": Negative air pressure is used for airborne precautions, such as in the case of tuberculosis or other airborne infections. MRSA is primarily spread through direct contact, not airborne transmission, so negative air pressure is not necessary in this situation.

B) "Place the client in a room with a high-efficiency particulate air (HEPA) filter.": A HEPA filter is used for airborne precautions to filter out airborne particles like those found in diseases such as tuberculosis or measles. Since MRSA is transmitted through direct contact and not airborne particles, placing the client in a room with a HEPA filter is not necessary.

C) "Have the client wear a mask when they are out of their room.": MRSA is typically spread by direct contact with infected wounds, bodily fluids, or contaminated surfaces. It is not transmitted via respiratory droplets, so there is no need for the client to wear a mask when they leave their room. The focus should be on contact precautions rather than respiratory precautions.

D) "Don gloves prior to assisting the client with brushing their teeth.": MRSA is a contact-borne infection, so it is essential to use proper personal protective equipment, such as gloves, when coming into direct contact with the client or any of their bodily fluids or contaminated items (such as toothbrushes). Donning gloves prior to assisting with brushing their teeth ensures that the nurse avoids direct contact with potential sources of infection. This is an important measure in preventing the spread of MRSA.