AEMCA Practice Exam

What are the common sizes of nasopharyngeal airways (NPA) used in medical practice?

1. 20, 24, 28

2. 22, 26, 30

3. 26, 30, 34

4. 30, 34, 38

The correct answer is: 26, 30, 34

The common sizes of nasopharyngeal airways (NPA) used in medical practice are typically measured in millimeters and are based on the diameter of the airway. It is crucial to use the proper size to ensure effective airway management while minimizing trauma to the nasal passages. In the context of nasopharyngeal airways, sizes around 6.5 mm to 8.5 mm are commonly used in clinical settings, with larger sizes offered for adults. The sizes given in the selected option represent a range from smaller to larger diameters suitable for adult patients, making them appropriate for airway management in various clinical scenarios. Specifically, when using an NPA, the size should be chosen based on the patient's size and age to maintain proper fit and ensure the airway remains open without causing injury. Recognizing that the correct sizes can vary by manufacturer, the selected answer reflects standard guidelines followed in practice. Therefore, the provided sizes align with what is commonly found in medical supplies for airway management.