The following are multiple choice questions (with answers) about medical knowledge.   **Question:** In a patient with implanted cardiac pacemaker (defibrillator),which of the following investigation is useful to know the position of the misplaced implant ?.   (A) X-ray   (B) CT scan   (C) MR1   (D) USG
['(A) X-ray <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) X-ray \n (B) CT scan \n (C) MR1 \n (D) USG <> possible answers', '  In a patient with implanted cardiac pacemaker (defibrillator),which of the following investigation is useful to know the position of the misplaced implant ?. <> context@']