Which of the following substances is found in all three layers of blood vessels?

What is OSHA's rule for employees who may become exposed to blood-borne pathogens?

What will be an ideal response?

A 75 kg (165 lb) patient with acute lung injury is being mechanically ventilated at the following settings: VC, A/C; VT 300 mL, respiratory rate 16/min, FIO2 0.50 and PEEP +5 cm H2O. The following arterial blood gas results are obtained: pH 7.30, PaCO2 58 torr, PaO2 79 torr, HCO3- 28 mEq/L. The patient's condition should be described as

A. venous admixture. B. ventilation/perfusion mismatching. C. hypoventilation. D. refractory hypoxemia.