Final answer:
Nitroglycerine is an inhalational agent that may unmask myocardial depression in CAD or severe hypotension. It is used to treat high blood pressure, chest pain, and abnormal heart rhythms.
Step-by-step explanation:
This inhalational agent that may unmask myocardial depression in CAD or severe hypotension is nitroglycerine. Nitroglycerine is used to treat high blood pressure, chest pain caused by reduced blood supply to the heart muscle, and some abnormal heart rhythms. It works by dilating blood vessels and increasing blood flow to the heart.