Having trouble finding a full article on this that is from a general source, but since public health issues have...

Having trouble finding a full article on this that is from a general source, but since public health issues have been regarded as a responsibility of physicians for many decades at this time, including asking questions to find out about possible lead paint, possible fall hazards, etc. it isn't surprising to me that gun safety, esp around kids, is considered an education issue. Presumably, if you have swords and throwing stars, etc. these would also be included, but those are probably less common in the overall population, although many people probably phrase the question as "any types of weapons, such as guns" kept in the home. Probably followed by, "Do you have appropriate safety precautions in place". Anyway, apparently Florida has an issue with asking invasive questions specifically if they are about guns.

http://tbo.com/news/crime/florida-argues-doctor-guns-law-does-not-limit-speech-20130718/

http://smartgunlaws.org/eleventh-circuit-upholds-florida-law-preventing-doctors-from-asking-about-ownership-2/
http://smartgunlaws.org/eleventh-circuit-upholds-florida-law-preventing-doctors-from-asking-about-ownership-2