Check on Anders is an Act 3 companion quest for Anders in Dragon Age II.
Visit Anders at his clinic in Darktown or, if Hawke is in a romance with him and invited him to move in, at Hawke's Estate
Acquisition[]
Received at the beginning of Act 3.
Walkthrough[]
Hawke witnesses Anders either conspiring with Merrill, refusing service to Isabela on the grounds that he can't/won't treat "that kind of illness", or clashing with Aveline.
Romance[]
If Hawke is in a romance with Anders then you can tell him that you have a gift for him; you give him a key to the cellar (that has an exit next to Anders's clinic) so he can escape to Darktown if necessary.
- diplomatic or aggressive: Anders says you’ll understand when it’s him that Meredith is coming for, and that you won’t be able to sit by so righteously.
- humorous: Anders says it makes him believe that you and he can do anything.
Talk to Anders:
- If you didn't give him the key already you have another opportunity to give it to him.
- Otherwise:
- You can flirt with Anders here.
- Otherwise it doesn't matter what you say to him.
No Romance[]
If Hawke is not in a romance with Anders then he tells Hawke that Meredith has all but destroyed the mage underground and those left have turned to blood magic as their only option.
As a Friend, choosing the Diplomatic ("There's still hope.") or Aggressive option ("We will stop her.") in the second dialogue prompt results in Anders friendship 
(+10).
As a Rival, choosing the Diplomatic option in the second dialogue prompt ("Maybe it's for the best") results in Anders friendship (+10). Choosing the Aggressive option ("All mages are dangerous") results in Anders rivalry 
(+10).
After the second dialogue prompt, Anders will state either that the Fifth Blight was stopped with the help of two mages, one being an apostate, or that a mage saved everyone from the Blight.
Bugs[]
- Anders will still say two mages helped the Hero of Ferelden to defeat the Blight, even if you killed Wynne in Dragon Age: Origins.