The adult pharynx
A) is capable of complete constriction.
B) is invested with numerous olfactory sensors.
C) is immobile during swallowing.
D) serves as a passageway for both food and air.
D
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In an autoclave, moist heat at 270°F (132°C) under 30 pounds of pressure will kill all organisms in a minimum of
A) 5 minutes B) 10 minutes C) 20 minutes D) 30 minutes
A patient addicted to a barbiturate is prescribed phenobarbital 10 mg po tid to help with withdrawal symptoms. The pharmacy stocks phenobarbital elixir 20 mg per 5 mL. How many mL must the patient drink in order to obtain the correct dose?
A. 1.5 mL B. 2.5 mL C. 3.5 mL D. 4.5 mL
Why does a patient with CO poisoning have cherry red skin coloring instead of cyanosis?
a. CO poisons the hemoglobin and chemical alters the erythrocyte making it incapable of carrying oxygen. The red color is due to compensatory polycythemia which occurs immediately. b. CO causes the hemoglobin molecule to break apart. The red coloration is from the hemoglobin fragments under the skin c. Patients with CO posioning hyperventilate so the red coloration is due to the increased WOB d. CO rapidly fills sites on the hemoglobin where oxygen normally attaches. The high level of carboxyhemoglobin and saturated hemoglobin results in the red coloration