Vitamin D deficiency can result in:

Your patient is a 24-year-old man with a severe closed head injury. He is unresponsive, and his vital signs are unstable. Which of the following is the appropriate receiving facility for this patient?

A) A Level I trauma center B) A Level III trauma center C) A Level IV trauma center D) A Level II trauma center

Why do vasodilators administered via the intravenous route cause an increase in intrapulmonary shunting and a decreased Pao2?

A. because they come in contact with all the vessels of both systemic and pulmonary vasculatures B. because they often cause pooling of venous blood in the systemic venous circulation C. because they dilate vessels of both ventilated and unventilated alveoli in the pulmonary vasculature D. because they cause a decreased cardiac output as an untoward effect