Damage through the epidermis and into a variable depth of the dermis is what type of burn?
a. first degree
b. second degree
c. third degree
d. fourth degree
B
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Which of the following statements regarding flame spread rating tests is the MOST accurate?
A) Even though interior finish material is intended to be used in varying thicknesses, it only needs to be tested in a single thickness. B) Test conditions provide an absolute measure of the spread of fire travel. C) Plastic material that drips on the floor of the test furnace will not affect the accuracy of the evaluation of the material. D) For test results to be accurate, specimens must be attached to the furnace with the same materials and methods used in the actual installations.
When helium/oxygen (heliox) is used with the CareFusion AVEA Ventilator in the in-fant/pediatric modes, which of the following statements is true?
a. The hot-wire flow sensor must be used. b. Heliox may not be used with this ventila-tor. c. The ventilator's internal flow sensors can be used. d. Data and graphics must be adjusted by the operator.
In the lung's alveoli, there are four gases mixed together: O2, carbon dioxide, nitrogen, and water vapor
At a normal barometric pressure of 760 mm Hg, alveolar O2 exerts a partial pressure of 100 mm Hg, CO2 40 mm Hg, and water vapor 47 mm Hg. What is the alveolar partial pressure of nitro-gen? a. 187 mm Hg b. 713 mm Hg c. 660 mm Hg d. 573 mm Hg
Which two cements use chemical bonding for retention?
a. ZOE and zinc phosphate b. Glass ionomer and ZOE c. Glass ionomer and polycarboxylate d. Polycarboxylate and zinc phosphate