A nurse is reinforcing education to a client who has mitral valve stenosis that has not responded to pharmacological therapies. Which of the following statements should the nurse include in their teaching about other treatment options?

"A flexible catheter will be inserted into a vessel of the arm, neck, or groin and advanced to the heart to dilate a narrowed or occluded artery."

"A heparin bolus is administered and followed with a continuous infusion to help keep the blood thinner."

"A small catheter with a balloon on the end is threaded into a vessel in the groin and advanced to the heart where the balloon will be inflated, and the narrowed valve will be dilated."

"Pentoxifylline can be administered to help the platelets from sticking together and occluding the vessels."