Neonatal nasal cannula characteristics: which statement is true?

• A. It is available in infant size
• B. It cannot be used for long-term oxygen therapy
• C. It requires a jet nebulizer to function
• D. It supplies only low concentrations of oxygen

Answer: (A)

Neonatal nasal cannulas are designed in infant sizes to fit the tiny nares of newborns, ensuring a comfortable, stable fit and predictable oxygen delivery. That sizing is what makes the statement true: the device is available in an infant size. The other options aren’t inherently correct: nasal cannulas can be used for longer-term oxygen therapy with appropriate monitoring, they don’t require a jet nebulizer to function, and while they deliver low-flow oxygen, the amount of oxygen delivered (FiO2) isn’t fixed and depends on flow, fit, and the infant’s breathing—so it isn’t accurate to claim they supply only low concentrations in all situations.