A physician orders 2 L/min O2 through a simple mask to a 33-year-old postoperative woman with moderate hypoxemia breathing room air (PaO2 = 52 mm Hg). What would be the correct action at this time?
a. Carry out the physician's prescription ex-actly as written.
b. Recommend that the mask be changed to a cannula at 2 L/min.
c. Recommend a flow of at least 5 L/min to washout carbon dioxide (CO2).
d. Do not apply the O2 until the medical di-rector has been contacted.
ANS: C
At a flow less than 5 L/min, the mask volume acts as dead space and causes CO2 rebreathing.
You might also like to view...
Which app offers the FDA MedWatch Safety wire and recall notices?
A) MDirectory B) Epocrates Rx C) NPTA D) BlackBag
A tear in the tracheobronchial tree or a pneumothorax can be characterized by ________ in the neck
A) swollen lymph nodes B) jugular venous distention C) mediastinal deviation D) subcutaneous emphysema
Survival in burn patients is associated with which of the following?
a. Pharmacological treatment to improve hemodynamic stability b. Conservative surgical treatments c. Development of multidisciplinary teams d. Delayed fluid resuscitation
Nerve agents are related to organophosphorus pesticides and include tabun, ____, soman, and V agent.
A. anthrax B. RDX C. sarin D. ricin