Infectious diseases are not usually caused by:
a. ticks. c. viruses.
b. bacteria. d. algae.
Q. 2 A prokaryotic, one-celled organism that ranges in size from 0.5 m to 50 m is usually classified as which of the following?
a. Virus c. Bacterium
b. Protozoan d. Retrovirus
Q. 3 If 50 of the gas delivered to a patient is oxygen, its partial pressure at 1 atm is _____ mm Hg.
a. 265.0 c. 380.0
b. 356.5 d. 403.5
Q. 4 A 78-year-old man is going to be discharged today after having abdominal surgery several days ago. The nurse notices that the patient has a temperature of 101.5 F and has some tan secretions in his suture area.
A specimen is sent to the laboratory. The results show the presence of gram-positive cocci. The statement that might explain this condition is which of the following?
a. The antibiotic was ineffective.
b. The patient was not compliant with thera-py.
c. It is normal to have secretions at the suture site.
d. A health care-associated infection should be considered.
Q. 5 Which organ in the human body is most susceptible to electrical shock?
a. Skin c. Brain
b. Heart d. Lungs
Q. 6 Electrical hazards can be prevented by which of the following?
1. Properly grounding the circuit
2. Using ground fault circuit interrupters (GFCIs)
3. Using only Underwriters Laboratories (UL)approved electrical equipment
4. Using as many extension cords as necessary to keep the wires out of the way
a. 1 and 2 c. 2 and 3
b. 3 and 4 d. 1, 2, and 3
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