This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory System, Subject name: Pediatrics
Which of the following drugs are used in the management of acute severe asthma? 
Select and explain. 
A. Epinephrine, B. Ipratropium, C. Terbutaline, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Ans. D. All of the aboveAcute exacerbations of asthma are acute episodes of progressively worsening shortness of breath, cough, wheezing, chest tightness or a combination of these symptoms. Management of these children require Oxygen, nebulization with beta 2- agonists. Patients may also require Epinephrine, Terbutaline, Ipratropium, Hydrocortisone, Prednisolone, Aminophylline and Magnesium sulphate.