HUASHAN HOSPITA 莘山院 Diagnosis >2 readings: separated apart Patient should not ingest caffeine or smoke for 30 minutes before readings Patient should sit for 5 minutes with arm at heart level before blood pressure is checked BP should be routinely measured in different daysDiagnosis  2 readings; separated apart  Patient should not ingest caffeine or smoke for 30 minutes before readings  Patient should sit for 5 minutes with arm at heart level before blood pressure is checked  BP should be routinely measured in different days