Assume she has no armor, and broodlings have fourteen, no, 18 upgs, as that is pretty far in assuming DM gets l4 reasonably fast.
Kk, assume medic has used full heal (these are the conditions that favor dm the most, basically) and has fifty mana left. As soon as DM l4, disable is coming out. If DM l2 then its over because nothing else can be done once disable is out.
Broodlings spawn at a rate of one per deathcount seems reasonable, but it may be one per two deathcounts. Basically, they spawn faster then teh med can move, and there are a ton of them.
Assuming the med has 5 upgs on attack by now, which is very little, she will be doing 19+25 damage, effectively two shotting broodlings. So no chance of her living there.
It takse approximately thirty seconds for the average char to move from any base to the top/bottom temple, blocked by no spawn.
The teammates will be on the move (unless stunned, which probably wont happen) immediately.
Assuming range of aggressive top base to defensive bottom base, itll take them about forty seconds.
Broods can attack approx two times a second, with eight broods attacking at once, maximum.
Thats 25(broods attack)x2(attacks per second)x8(broods attacking at once)x40(seconds until help).
Thats 16000. So assuming you can get a no armor medic with just fifty mana and partners that are pretty much the whole map away, the medics dead.
If the medic has lets say seven armor, however.
Thats 11520. Medic is still dead, but could essentially save herself with use of one full heal and a cloak.
Lets assume that the partners will reach there in twenty seconds (thats still pretty far away, mind you)
Thats 4800, leaving the medic with 1200 hp as the teammates arrive,and assuming horrible circumstances, thats still escapeable from.
Now imagine a game with pros. A medic that is outside will always have atleast one partner near them, if not both, or them both at most ten seconds away.
The medic will have reasonable mana, and a fast mana gain. Should also have cloak.
We can take the damage down to about (non calculated) 2400 damage, not including for armor.
See what im saying?
None.