St. Theresa's symbols are a heart, an arrow, and a book. The heart and arrow are her symbols because she is said to have had a vision where an angel pierced her heart with an arrow. The book is her symbol because she is one of the Doctors of the Church.
There are several saints named Teresa so you need to be more specific.
I can find no saint named Teresa Vickers.
The answer depends upon which Saint Teresa you are referring to as there are several.
College of Saint Teresa ended in 1989.
Ecstasy of Saint Teresa was created in 1652.
St. Teresa Redi is a saint but not a patron saint.
Which Teresa? There are several.
Saint Teresa was one of a number of saints by that name. Please narrow your question to a specific saint.
There are several saints named Teresa. Please be specific.
There are a number of saints named Teresa. Please be specific.
Mother Teresa's patron saint was St. Therese of Lisieux.
Mother Teresa has been beatified but not yet declared a saint.