The capnographic tracing is from a 2-month-old infant anesthetized using a pediatric circle system and mask at a fresh gas flow of 4 L/min. The sampling port is in the elbow connector. This tracing indicates
(A) adequate alveolar ventilation
(B) exhausted soda lime
(C) expired halothane concentrations representative of alveolar concentrations
A newborn is in respiratory distress. Examination shows a scaphoid abdomen, cyanosis while breathing oxygen by mask, and heart sounds in the right hemithorax. Which of the following is the most appropriate next step?
(A) Assisted ventilation with a bag and face mask
(B) Insertion of a chest tube on the left side
(C) Insertion of a nasogastric tube
(D) Tracheal intubation and assisted ventilation
(E) Tracheal intubation and expansion of the left lung
Monitoring of a patient with a closed head injury shows the following pressures: Intracranial pressure 30 mmHg, Central venous pressure 5 mmHg, Mean arterial pressure 65 mmHg, Peak airway pressure 25 cmH,0. The cerebral perfusion pressure is
(A) 30 mmHg
(B) 35 mmHg
(C) 40 mmHg
(D) 60 mmHg
(E) 65 mmHg
B
Which of the following correctly describes the anatomic location of the stellate ganglion?