if they just used a dipstick urine test, whatever presence of protein they found would not be an accurate measure. In the UK or North America, a dipstick reading would usually be marked as +1,+2,+3 or +4. A +1 or more would usually mean doing a 24 hour test (where you put all your pee over 24 hours into a container).
The BPs are diagnostic for preeclampsia, although their severity is dependent on yur wife's non-pregnant BP. Women whose BP sits around 120/80 normally, can often run at 140/90 during pregnancy and be well-managed by close monitoring. If, however, she has a nice low BP usually, those numbers are concerning.
Is your Spanish fluent enough to ask detailed questions and understand the answers? If not, could you find someone willing to translate for you?
I would really be wanting to know how they planned to monitor this pregnancy, if there is a specialist used to dealing with hypertensive disorders in pregnancy and multiple births, and what happens if delivery neeeds to be before 34 weeks.
Can you monitor her BP at home?