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ID 1: Background & Antibacterials by Drug Class

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Gram-positive organisms

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Terms in this set (174)

Gram-positive organisms

Have a thick cell wall and stain dark purple or bluish from the crystal violet stain.

Gram-negative organisms

Have a thin cell wall and take up the safranin counter stain, resulting in pink or reddish color

Atypical organisms

do not have a cell wall and do not stain well

Provides quick, preliminary results (e.g., Gram-negative rods), but does not identify the exact organism (e.g., Klebsiella pneumoniae)

___________________ provides the susceptibility patterns at the hospital over a specific time period (generally 1 year). It aids in selecting empiric treatment and are used to monitor resistance trends over time.