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?

 A hemodynamically unstable patient being ventilated in VC-CMV mode is triggering inspiration at a rate of 25.  His ABG results are as followed: ABG: pH 7.50 PCO2 30 PO2 98 HCO3 24 Sa02 100% What should you recommend?  

Which of the following will increase the volume delivered to a patient on a pressure limited ventilator? l. Decreasing the sensitivity ll. Increasing the flow setting lll. Decreasing the flow setting lV. Increasing the pressure setting

The following information is obtained on a 6’2″ male patient: VENT SETTINGS Mode PRVC Vt  600 RR 12 PEEP 5 cm H20 PS 10 cm H20 FIO2 65% VITALS HR 106 RR 20 BP 139/95 SP02 89% ABG pH  7.45 PaCO2 35 Pa02 52 HCO3 25 Sa02 87% Which of the following should the respiratory therapist recommend?