A patient should be placed in a private room that has monitored negative air pressure if he or she is infected with which organism?
a. H. influenzae
b. Mycoplasma pneumonia
c. Parvovirus B19
d. Mycobacterium tuberculosis
D
Patients with M. tuberculosis should be placed in a private room that has monitored negative air pressure, 6 to 12 air changes per hour, and appropriate discharge of air outdoors or monitored high-efficiency particulate air (HEPA) filtration of room air before the air is circulated to other areas of the hospital or before placing patients with the same infection in the same room if private rooms are not available.
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Serial repetition of segments is a defining characteristic of which worm phylum?
A) Flatworms B) Annelids C) Roundworms D) Segmentation is not a defining characteristic of any of the worm phyla.
Lungs first evolved in which group?
a. cartilaginous fishes b. bony fishes c. lampreys d. coelacanths e. lungfishes
Proteins are created with:
A. triglycerides. B. phosphodiester bonds. C. polysaccharides. D. peptide bonds.
Which of the following tissues forms the outer protective covering of the plant?
A. epidermal tissue B. vascular tissue C. meristematic tissue D. ground tissue