b)You need to apply Family Visit at immigration first,then as soon as it is approved,bring them here,medical certificate is not required anymore in Qatar embassy for visa stamping for family visit visa,after 1 week upon her arrival here in Doha,have her medical at medical commission ,then apply for your sponsorhip (husband)at Labour dept... no hassle of having her medical at home country...

Just say thumbs-up if this info help you in your query..