A diagnosis of respiratory failure can be made if which of the following are present?
1. PaO2 55 mm Hg, FiO2 0.21, PB 760 mm Hg
2. PaCO2 57 mm Hg, FiO2 0.21, PB 760 mm Hg
3. P(A?a)O2 45 mm Hg, FiO2 1.0, PB 760 mm Hg
4. PaO2/FiO2 400, PB 750 mm Hg
a. 1 and 2 only
b. 1, 3, and 4 only
c. 3 and 4 only
d. 2, 3, and 4 only
ANS: A
Criteria for respiratory failure based on arterial blood gases have been established by Campbell and generally define failure as a PaO2 (arterial partial pressure of oxygen) less than 60 mm Hg and/or a PaCO2 (alveolar partial pressure of carbon dioxide) greater than 50 mm Hg in otherwise healthy individuals breathing room air at sea level.
You might also like to view...
When photographing the fire scene, what should be the first photograph?
A) The fire chief in charge of the fire B) A color and gray calibration card C) The houses around the scene D) The street number on the curb
AVL has its positive pole on the
A) right arm. B) right leg. C) left leg. D) left arm.
Truthfulness is very important in the medical office.
Answer the following statement true (T) or false (F)
The physiologic process of hemostasis is achieved through:
A) an increased production of red blood cells. B) the destruction of fibrin and platelets. C) the use of anticoagulants such as Coumadin. D) vasoconstriction and platelet aggregation.