attended upon的法律含义

　　I have just been sent a form by a solicitor¹. In it, I am asked: "Have you attended upon hospital since your accident?" Is this some kind of legal-speak or am I right in thinking that the phrase "attended upon has been used incorrectly. To my knowledge, "attend upon" means to serve, administer, wait on, follow or escort. Have they made a grammatical error or have I?? Thank you.
Hi,
It's the kind of formal and archaic² phrase that some members of the legal profession seem to like. It means 'to visit, keep an appointmet with, often on a regular basis'. If you read 19th. century （or earlier） novels, you'll find sentences like 'Yesterday I attended upon Lady Randolph', meaning I visited her, probably because I had an obligation to do so.
This is from the famous 17th.century Diary of Samuel Pepys.
So to dinner, and then away by coach to the Temple, and then for speed by
water thence to White Hall, and there to our usual attending the Duke of
York, and did attend him, where among other things I did present and
lodge my letter,
Best wishes, Clive

1 solicitor   

n.初级律师，事务律师

参考例句：

• The solicitor's advice gave me food for thought.律师的指点值得我深思。
• The solicitor moved for an adjournment of the case.律师请求将这个案件的诉讼延期。

2 archaic   

adj.(语言、词汇等)古代的，已不通用的

参考例句：

• The company does some things in archaic ways,such as not using computers for bookkeeping.这个公司有些做法陈旧，如记账不使用电脑。
• Shaanxi is one of the Chinese archaic civilized origins which has a long history.陕西省是中国古代文明发祥之一，有悠久的历史。