Thyroid

My wife just had a surgery on right thyroidectomy. The diagnosis as below:
Right thyroid lobe (2 different nodules);
a. Smaller nodule: Papillary thyroid carcinoma, encapsulated. Excision margins are free from tumour.
b. Larger nodule: Benign adenomatous goitre.

What's the best action should she take? Should she go for another operation to remove the left thyroid (total thyroidectomy) followed by taking a thyroid hormone pill for the whole life & undergo radioactive iodine treatment? Or just wait for any other symptom? Or any other suggestion?

thank you very much...highly appreciate your comments & feedback