Would a standard genetic test detect 22q11.2 deletion syndrome? my son had genetic testing done at 2 yo.

Standard genetic ?: There are thousands of genetic related tests I am aware of and each has its uses for specific cases. A simple chromosome study would not pick up this deletion.A high resolution study would likely find it in most specialty labs.Some also do a specific study using a genetic probe.This is a question best answered by the folks who did the study in question.