North Carolina EMT State Practice Exam 2026 - Free EMT Practice Questions and Study Guide

The typical oxygen flow rate for a nasal cannula is indeed in the range of 1 to 6 liters per minute. This range is suitable for providing supplemental oxygen to patients who are experiencing mild to moderate respiratory distress or require a small boost in their oxygen levels. At this flow rate, the nasal cannula allows for comfortable oxygen delivery while minimizing the risk of injury or irritation to the nasal passages.

Nasal cannulas are often preferred in situations where higher flow rates are not necessary, as they provide a non-invasive method of oxygen delivery and allow the patient to speak and breathe normally. Additionally, any flow rate above this might lead to discomfort, nasal mucosa drying, or other complications. This is why using a flow rate beyond 6 liters per minute (such as those suggested in some higher options) is typically not recommended for nasal cannulas, as it does not align with established guidelines for their use.