How can I help Spock?

Hint 1 of 10:

You might first want to talk to him for some information.

Hint 2 of 10:

Keep talking until you've gone through all of the dialog choices.

Hint 3 of 10:

Including the one about the stones.

Hint 4 of 10:

It should be dialog choice #4.  If you aren't offered this choice, try
scanning some of the pile of blue rocks next to the Vurian.

Hint 5 of 10:

Spock seems a bit incoherent, especially for a Vulcan.

Hint 6 of 10:

Perhaps you can do something to help him.

Hint 7 of 10:

It would help if you had a more complete picture of his medical condition.