The good part about this airport is, it's very close to the town and you don't need to get there super early; not much happening means short times spent in security. However, it's also true that the flights don't always leave on time, so be prepared for some waiting. We visited this airport in the spring of 2009.
Here's the review:
Are there one or more play areas? nope
Is there one in every terminal, after passport control? n/a
Is the play area conveniently located? n/a
Is there information about the play areas available online? no, but here's the website, you can see pictures of the terminal: http://www.luangprabangairport.com/
Are maps clearly labeled to make finding the play areas easy? n/a
Are there one or more nursing areas? no