Let's see....

Black beret for Vietnam-era US Army Rangers (unofficial)
1LT (right collar)
Armored Cav. collar device (left collar)
Armored Cav. breast insignia (right breast over name strip)
Jump badge (left breast over US ARMY strip)
Ranger Btn. (left shoulder)
US Military Assistance Command Vietnam (left shoulder)

And I can't identify the blue and white armored patch on her right breast

Gundaago said:

Let's see....

Black beret for Vietnam-era US Army Rangers (unofficial)
1LT (right collar)
Armored Cav. collar device (left collar)
Armored Cav. breast insignia (right breast over name strip)
Jump badge (left breast over US ARMY strip)
Ranger Btn. (left shoulder)
US Military Assistance Command Vietnam (left shoulder)

And I can't identify the blue and white armored patch on her right breast

1st Armored Tank Division?