23 year old patient that had treatment with prednisone over 5grams per year for a year for trombocitopenic idiopatic purpura, curently with discontinued glucocorticoid therapy for 6 months, has a z score of -1.7ds in L1, and -1.8DS in l2, l3 and l4 z scores are 0. should this patient have osteoporosis treatment? she has normal bmi, no fractures, no hepatic or renal diseases.