What is the first step for a 20-year-old male experiencing throat burning after inhaling chlorine gas?

Administering oxygen is a critical first step in managing a patient who has inhaled chlorine gas and is experiencing throat burning. Chlorine gas exposure can irritate and damage the respiratory tract, leading to symptoms such as burns in the throat, coughing, and difficulty breathing. Providing supplemental oxygen helps to ensure that the patient's tissues receive adequate oxygen, which is vital during respiratory distress.

Inhaling chlorine gas can lead to respiratory complications, and immediate oxygenation can help alleviate symptoms and prevent further deterioration. This action supports the patient's respiratory function while further assessments and treatments are conducted. Other measures, such as decontamination, providing water, or collecting samples of phlegm, may be part of the overall management plan, but they are not the immediate priority when dealing with a respiratory emergency. The focus must be on stabilizing the patient's airway and providing necessary oxygenation swiftly.