A severely dyspneic and cyanotic patient enters the ER. The nurse gives the patient oxygen at:
1. 2 L to preserve the hypoxic drive.
2. 6 L to relieve the dyspnea.
3. 8 L, humidified, to liquefy secretions.
4. 10 L, humidified aerosol, to dilate bronchi.
1
Low-dose oxygen is a safe initial dose in case the hypoxic drive must be preserved, espe-cially for a patient whose history is unknown.
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