Use of broad-spectrum antibiotics may cause an overgrowth of
a. amoeba.
b. fungi.
c. protozoa.
d. parasites.
b. Superinfections occur when a broad-spectrum antibiotic causes the eradication of microorganisms that are part of the normal flora (bacteria that normally live in these areas) of the gastrointestinal (GI) tract, oral cavity, respiratory tract, or vaginal area. Broad-spectrum antibiotics may cause a reduction/elimination of normal bacterial flora allowing for the growth of other organisms such as fungi and bacteria (pseudomembranous colitis). Thus, it is prudent to use a narrow-spectrum antibiotic initially and to switch to a broad-spectrum antibiotic if the patient does not respond favorably.
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Manipulation of urinary pH results in decreased passive reabsorption and increased:
A) excretion B) glomerular filtration C) recirculation of urea D) elimination of iron
The mitral (bicuspid) valve does which of the following?
a. Prevents atrial backflow during ventricular contraction. b. Separates the right atrium and the left atrium. c. Separates the right atrium and the right ventricle. d. Separates the right ventricle and the pul-monary artery.
During ____ rewarming, the Paramedic administers warm, humidified oxygen.
A. active internal B. passive internal C. passive external D. active external
A commonly abused substance that is legal only for use in veterinary medicine is:
A) LSD B) PCP C) barbiturates D) opiates