Microbiology Meridian CH 4, 5, 6

In surgical practice, many regimens utilize only a single dose of chemprophylaxis given with the premedication or at the time of induction of anesthesia.
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Terms in this set (25)
In surgical practice, many regimens utilize only a single dose of chemprophylaxis given with the premedication or at the time of induction of anesthesia.
True
Vaccination is a strategy to prevent infection.
True
It is necessary to measure the levels of certain antimicrobial agents periodically to ensure that the serum level does not fall below a minimum therapeutic threshold or rise in the toxic range.
True
In gram-positive bacteria, the genes coding for antimicrobial resistance are transferred by a bacteriophage vector in a process called transduction.
True
Separation of sewage and drinking water is probably the single most effective means of preventing enteric infection.
True
Adverse effects of antimicrobial therapy include toxic reactions, which are always dose dependent.
False
Hand hygiene is a prevention method.
True
The prevention of infection by prescribing antimicrobial agents would include antibiotic prophylaxis.
True
If it is too late to prevent exposure it may be possible to start preemptive treatment in time to avoid the consequences of infection.
True
Patients with infections prior to surgery need to start effective antimicrobial therapy which should be discontinued after the procedure.
False
The lowest concentration at which organisms do not produce visible growth is called maximum inhibitory concentration (MIC)FalseThere are various potential targets for antimicrobial action, the most common of which are cell wall, cell membrane, protein synthesis, and nucleic acid synthesis.TrueThe amount of antibiotic present in a serum specimen can be measured from the size of the inhibition zone produced after incubation with an organism of known sensitivity. This type of test is referred to as bioassay.TrueLife-threatening conditions require careful monitoring to ensure that the patient responds to the antimicrobial therapy.TrueVaccinations in most developed countries include those against polio, tetanus, rubella, and may add hepatitis B in the future.TrueOne of the controlled principles to reduce the problem of resistance is avoiding topical agents.TrueFor practical purposes, the process to prevent communicable diseases includes establishment of clinical disease.TrueOne means of transferring resistance is by a process called conjugation.TrueThe safe disposal of contaminated waste from patients is not an important part of isolation practice.FalseThe most common reason for combining antimicrobial agents with additional agents is to increase the spectrum of antimicrobial activity during presumptive therapy of serious infection.TrueIn ecological effects, overgrowth of minority organisms from the indigenous flora can cause disease. This is why candidiasis is so common following antibacterial treatment.TrueResistance to antimicrobial agents is always acquired.FalseThe basis of antimicrobial chemotherapy is to arrest the growth of the causal pathogen.TrueChemoprophylaxis usually deals with infection at the source and at the transmission state. It interferes with the invasion of sterile tissues and secondary spread.FalseAntimicrobial agents that act on metabolic pathways are prone to resistance developing as a result of mutations favoring alternative pathways.True