I'm an rt. my pt. has 50% lung function and severe copd. what are the recommended medications?

ICS, bronchodilators: For maintenance medications, the goal is symptom relief. This can be done with bronchodilators ie short or long acting beta agonists, ( albuterol, formoterol) and anti cholinergics, there is some atrovent (ipratropium) may increase the risk of cardiac events, so long acting anti- ach drugs like spirva are better. Inhaled steroids may be lower the risk of COPD exacerbation's as well. ( torch study) and are used.

A few suggestions: LABA/LAMA/Steroids are used to treat COPD, but I would add that other causes of obstruction and/or restriction can be investigated. A DLCO and lung function test including volumes will add more information.