The nurse is reviewing the development of the newborn infant. Regarding the sinuses, which statement is true in relation to a newborn infant?

A. May show evidence of some clouding of his level of consciousness: While patients who have been in intensive care for an extended period may experience some clouding of consciousness or altered mental status, it is not a universal finding. This option implies a more significant alteration in consciousness than typically expected in a patient transitioning to a medical-surgical unit.

B. Will be oriented to place and person, but the patient may not be certain of the date: This is a common expectation for patients who have been in an intensive care setting for a prolonged period. They may maintain orientation to person and place due to their familiarity with the environment and staff, but they might have difficulty recalling the date due to the stress of hospitalization and changes in routine.

C. Disruptive behavior: While some patients may exhibit changes in behavior after a long stay in intensive care, it is not a standard expectation. Many patients may be more subdued and fatigued rather than disruptive.

D. Will state, "I am so relieved to be out of intensive care": While this response might occur, it is not guaranteed. Patients may have mixed emotions about their transition from intensive care, including anxiety or confusion. Therefore, this statement is not a definitive expectation during the mental status examination.

A. To facilitate the movement of air through the nares: While the ciliated mucous membrane does help in the overall functioning of the nasal passages, its primary role is not to facilitate air movement but to filter and trap particles.

B. To filter coarse particles from inhaled air: The primary purpose of the ciliated mucous membrane in the nose is to trap and filter out coarse particles, such as dust, pollen, and microbes, from inhaled air. The cilia beat in a coordinated manner to move mucus and trapped particles towards the throat, where they can be swallowed or expelled, helping to keep the airways clear and protect the respiratory system.

C. To filter out odors: While the nasal cavity does play a role in detecting odors through the olfactory receptors located in the upper part of the nasal cavity, the ciliated mucous membrane itself is not primarily responsible for filtering odors.

D. To warm the inhaled air: The nasal passages do help warm inhaled air as it passes through, but this is more a function of the rich blood supply and the large surface area of the nasal cavity rather than the role of the ciliated mucous membrane specifically. The primary action of the ciliated mucous membrane is focused on filtering particles from the air.