Travel while H4 extension pending

[rsashi]

My wife left to India due to some emergency before her H4 extension got approved . She is attending chennai US consulate for her H4 stamping on April 5th.My question , -> is it k if she just takes my H1B 7th year approval notice.My wife's last H4 got expired on Dec 20th and our HR filled H4 extension on Dec 2nd(My wife left USA on Feb 11th).We are still excepting her approval.
Your response is highly appreciated.
Thanks
Kiran