The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 60 years old patient having cardiorespiratory arrest in hospital ward, for oxygenation what should be done immediately?   (A) Nasal intubation   (B) Oral intubation   (C) Cricothyroid membrane puncture   (D) Tracheostomy
['(B) Oral intubation <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Nasal intubation \n (B) Oral intubation \n (C) Cricothyroid membrane puncture \n (D) Tracheostomy <> possible answers', '  A 60 years old patient having cardiorespiratory arrest in hospital ward, for oxygenation what should be done immediately? <> context@']