I tried searching and couldn't find a particularly clear answer to this question. I thought that it worked basically like this,
Lets say Brother Accidentprone has suffered 3 different wounds of 3, 7 and 9 damage.
Lets also say that Brother Sawbones has an Intelligence score of 40 and has his Narthecium (so +20 to Medicae).
Okay, so Sawbones rolls his single Medicae test (as per the Errata's wording) and needing to roll 60 or less succeeds on his roll. He restores his Intelligence bonus of worth of wounds which is 4, doubled to 8 by his Narthecium. This would completely heal the 3 damage and the 7 damage but would leave 1 point left of the 9 damage. This 1 remaining point of damage now counts as treated and cannot be healed further without extended care but the rest of the damage is healed.
However, my GM says that as the errata states that it's a single Medicae roll that the 3, 7 and 9 would be added together (giving a total of 19, obviously) and that the above specified roll would have restored 8 wounds, leaving 11 classed as 'treated'.
So who's correct or are we both wrong, lol?
Also, If the Apothecary has the 'Enhanced healing' ability is the +d5 added before or after the doubling from the Narthecium?
I'm quite happy to be proved wrong, I'd just like a definitive answer is all ;-)