Nitrous oxide is contraindicated for use in a patient with which of the following conditions?

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Use of nitrous oxide is contraindicated in patients with any type of upper respiratory or pulmonary obstruction.Patients with chronic obstructive pulmonary disease (COPD),particularly emphysema,have respirations that are driven by a lack of oxygen and not by elevated carbon dioxide levels.These patients would have a great difficulty if they received more oxygen than they normally breathe.Diabetes and glaucoma are not contraindications to nitrous oxide administration.Nitrous oxide causes vasodilation;thus it does not exacerbate hypertension.

Nitrous Oxide Is Contraindicated for Use in a Patient with Which