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Oxygen Delivery Devices — NCLEX Cheat Sheet

Nasal cannula 1-6 L = 24-44% O2

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👤 By the CinnaRN Clinical Content Team 🕐 Updated 2026-07-11 🏷️ Physiological Adaptation 🔖 Free to read, print, and share

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Use this quick-reference guide to spot, treat, and prevent Oxygen Delivery Devices on the NCLEX. Keep it handy during review and on exam day!

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Key facts

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Nursing actions

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Notify / act now

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Key facts

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Nasal cannula delivers about 24 to 44% FiO2 at 1 to 6 L/min; humidify above 4 L/min to prevent drying.

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