Bonnie, be sure to get them to tell you what your opening pressure is, as well as what the closing pressure is. Insiste they remove fluid to bring your pressure down and then take your meds right away to help keep the pressure down longer.
After lp: lay flat for at least one hour
no lifting anything over 10 pounds
take your diuretics right away after the lp.
I so hope you get this done tomorrow. Keeping