The skin and mucosal tissue can prevent the spread of infectious agents by acting as _____ barri-ers

a. immunologic c. epidermal
b. mechanical d. soft


ANS: B
The skin and mucous membranes are mechanical barriers to infection, meaning that they physi-cally prohibit the transfer of infectious organisms into a host.

Health Professions

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Phenytoin decreases passive sodium influx across brain cell membranes by blocking _____ channels

Fill in the blank(s) with correct word

Health Professions

Used needles are disposed of in (a) ____________

a. biohazard trash container b. sharps container c. both a and b d. neither a nor b

Health Professions

Rosie is a 3-year-old child who has a confirmed bacterial pneumonia caused by Streptococcus pneumoniae. The physician orders Zinacef 50 mg/kg/day IM q6h. Rosie weighs 30 lb. How many milligrams of the medication will Rosie receive in one dose? 

A. 85 mg B. 170 mg C. 250 mg D. 350 mg E. 680 mg

Health Professions

Define the term reduction

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