True or False: Patients undergoing treatment with bleomycin sulfate can safely use N2O.

Patients undergoing treatment with bleomycin sulfate should not use nitrous oxide (N2O) due to the potential risk of lung toxicity. Bleomycin is known to cause pulmonary fibrosis, and the use of nitrous oxide can exacerbate this condition. N2O can lead to the formation of nitrogen bubbles in the alveoli and increase the risk of pulmonary complications by further impairing lung function.

This risk is heightened because nitrous oxide is a known respiratory depressant and can affect oxygen delivery to tissues. As such, using nitrous oxide in patients who are receiving bleomycin sulfate is contraindicated in order to prevent potential respiratory distress or worsening of lung function.

In summary, the assertion that patients undergoing treatment with bleomycin sulfate can safely use N2O is false, as using nitrous oxide in these individuals poses significant health risks due to the interaction with the drug's known side effects related to pulmonary toxicity.