The following are multiple choice questions (with answers) about medical knowledge.   **Question:** After a surgery, the surgeon asked the intern to remove the Foley's catheter but he could not do it. The surgeon himself tried to remove the Foley's catheter but he was unsuccessful. What should be done next?   (A) CT-guided rupture of bulb of Foley's   (B) Inject ether to dissolve the balloon and pull it out   (C) Inject water to overdistend the balloon until it bursts and Foley's can be removed   (D) Use ultrasound guidance to locate and prick the balloon and then remove the catheter.
['(D) Use ultrasound guidance to locate and prick the balloon and then remove the catheter. <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', "(A) CT-guided rupture of bulb of Foley's \n (B) Inject ether to dissolve the balloon and pull it out \n (C) Inject water to overdistend the balloon until it bursts and Foley's can be removed \n (D) Use ultrasound guidance to locate and prick the balloon and then remove the catheter. <> possible answers", "  After a surgery, the surgeon asked the intern to remove the Foley's catheter but he could not do it. The surgeon himself tried to remove the Foley's catheter but he was unsuccessful. What should be done next? <> context@"]