Question: Check all that apply. NN is a 75 y.o white male who recently had several episodes of orthostatic hypotension after an acute GI illness. He takes several medications inclduing levothyroxine 60mcg daily, atorvastatin 20mg daily, and hydrochlorothiazide 25mg daily. what factors could contribute to his development of orthostatic hypotension? aging, drug actin, volume overload, immobility, altered blood chemistry