Identify the structure labeled K.

Identify the digestive organ labeled I.

  Identify the structure labeled F.

Calculate the inspiratory to expiratory (I:E) ratio when the inspiratory time is 0.5 second and the respiratory rate is 30 breaths/min.

What thin membrane, continuous with the epiblast layer, secretes fluid to bathe the embryo?

  Identify the white blood cell labeled B.

Mrs. Ingalls presented to the ER unresponsive and in cardiac arrest.  She is resuscitated and is currently being bagged via her ETT tube.  What mode of ventilation should you recommend for Mrs. Ingalls?

Identify the urinary structure labeled C.

A 45-year-old, 73-inch-tall, 200 lb male patient is admitted to the emergency department with an exacerbation of myasthenia gravis. The respiratory therapist assesses the patient and finds the patient’s maximum inspiratory pressure is -15 cm H2O and his vital capacity is 1050 mL. It is decided that the patient requires ventilatory support. The most appropriate ventilator settings for this patient are which of the following?

What fractional inspired oxygen (FIO2) setting should be set on the ventilator when the patient currently has a partial pressure of oxygen (PaO2) of 53 mm Hg while receiving 50% oxygen and the desired PaO2 is 90 mm Hg?