Where should a nasal cannula be positioned for oxygen therapy?

The nasal cannula should be positioned in the nares because it is specifically designed to deliver supplemental oxygen directly into the nostrils. Proper placement in the nares ensures that the oxygen can be effectively inhaled by the patient, providing the necessary respiratory support.

The design of a nasal cannula includes prongs that fit into the nostrils, allowing for a steady flow of oxygen while also permitting the patient to breathe comfortably through their mouth if necessary. This positioning helps maximize oxygen intake and can be adjusted for comfort, making it an efficient choice for oxygen delivery in various healthcare settings.

Other placements, such as on the cheeks, over the mouth, or behind the ears, would significantly hinder the delivery of oxygen and could result in inadequate treatment of the patient's respiratory needs. Proper education on the correct positioning of a nasal cannula is essential for CNAs and healthcare professionals to ensure patients receive optimal care.