Inputs to the cerebellum are excitatory

Which of the following conditions could be responsible for causing obstructive shock?

a. Infection throughout the body b. Loss of blood in the urine c. Blood clots in the lungs d. Poor transfer of oxygen at the capillary level

____________ is not a method to obtain natural surfactant

a. Amniotic fluid extraction b. In vitro preparation c. Human alveolar wash d. Animal alveolar wash