Which of the following medical gases can be maintained in the liquid form at room temperature? 1. Nitrous oxide 2. Carbon dioxide 3. O2 4. Helium
a. 1 and 2 only
b. 2, 3, and 4 only
c. 2 and 3 only
d. 2 and 4 only
ANS: A
Both CO2 and N2O have critical temperatures above normal room temperature (Table 6-5).
Health Professions
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A. Documentation that reflects the extent of the physician's clinical and professional effort during the physical examination B. documentation that reflects the physician's familiarity or unfamiliarity with the patient's presenting problem C. documentation of any existing or initiated method of treatment, care, or management of the presenting problem D. Documentation of any ordered or requested diagnostic testing to identify the final diagnosis
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