NCLEX National Council Licensure Examination(NCLEX-PN) NCLEX-PN Question # 70 Topic 8 Discussion
NCLEX-PN Exam Topic 8 Question 70 Discussion:
Question #: 70
Topic #: 8
An infection in a central venous access device is not eliminated by giving antibiotics through the catheter. How might bacterial glycocalyx contribute to this?
A.
It protects the bacteria from antibiotic and immunologic destruction.
B.
Glycocalyx neutralizes the antibiotic, rendering it ineffective.
C.
It competes with the antibiotic for binding sites on the microbe.
D.
Glycocalyx provides nutrients for microbial growth.
Glycocalyx is a viscous polysaccharide or polypeptide slime that covers microbes. It enhances adherence to surfaces, resists phagocytic engulfment by the white blood cells, and prevents antibiotics from contacting the microbe. Glycocalyx does not have the effects described in Choices 2, 3, and 4.Pharmacological Therapies
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