broad-spectrum


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spectrum

 [spek´trum] (L.)
1. the series of images resulting from the refraction of electromagnetic radiation (e.g., light, x-rays) and their arrangement according to frequency or wavelength.
2. range of activity, as of an antibiotic, or of manifestations, as of a disease. adj., adj spec´tral.
absorption spectrum one obtained by passing radiation with a continuous spectrum through a selectively absorbing medium.
broad-spectrum effective against a wide range of microorganisms.
visible spectrum that portion of the range of wavelengths of electromagnetic vibrations (from 770 to 390 nanometers) which is capable of stimulating specialized sense organs and is perceptible as light.

broad-spectrum

(brôd′spĕk′trəm)
adj.
Widely applicable or effective: a broad-spectrum antibiotic.

broad-spectrum

adjective Referring to any agent, usually understood to be an antibiotic, which is effective against a wide range of microorganisms.

broad-spectrum

adjective Referring to any agent, usually understood to be an antibiotic, which is effective against a wide range of microorganisms

broad-spectrum

A term most commonly applied to antibiotics implying that the drug is effective over a wide range of organisms. Widely applicable or effective. Prolonged use of broad-spectrum antibiotics, such as AMPICILLIN or the CEPHALOSPORINS, will usually destroy most of the normal organisms of the bowel and these will tend to be replaced by resistant species. It is therefore considered better practice to use narrow-spectrum drugs so long as these are known to be effective against the organism concerned.
References in periodicals archive ?
"These results lend additional support for more judicious use of broad-spectrum antibiotics in community-onset pneumonia," the authors write.
Product: Proxel LSR Preservative Attributes: Introduced to the European market, it is a dual-active, broad-spectrum wet-state preservative for industrial, water-based products preventing spoilage caused by microorganisms.
- The use of broad-spectrum antibiotics and combinations of antibiotics was also high, raising concerns about increased risk for the development of antibiotic resistance and drug-resistant infections.
Of the uncomplicated cases, the readmission rate for patients who got broad-spectrum antibiotics was 1.4%, compared with 0.9% for patients who received narrow-spectrum ones; in cases of complicated appendicitis, 6.8% of subjects given broad-spectrum antibiotics were readmitted within 30 days, compared with 4.4% for patients on narrow-spectrum antibiotics.
Based in Berkeley, Calif., ExThera develops broad-spectrum, dialysis-like therapeutic devices to treat life-threatening bloodstream infections.
Whilst needing to be validated by further studies, the results of this study suggest that the use of broad-spectrum antibiotics in an outpatient, primary care setting before the age of 24 months may be associated with increased risk of childhood obesity.
The results, published in Biological Control, showed that whiteflies initially died off at about the same rate in areas treated with both the whitefly-specific and the broad-spectrum insecticides.
"It wasn't until recently that the FDA was able to establish an accurate and reliable broad-spectrum test," she said.
The initiation of these projects is another step in Functional Genetics' ongoing commitment to develop innovative broad-spectrum anti-infectives.
Merle Norman introduces LUXIVAA Sheer Defense with broad-spectrum protection
Ceftobiprole is the first anti-MRSA broad-spectrum cephalosporin to demonstrate efficacy in a large clinical trial in patients infected with staphylococcal infections, including methicillin-resistant Staphylococcus aureus (MRSA).
People with infections acquired in medical settings "have a different prognosis" because the microbe involved is more likely to be resistant to some drugs, so doctors should treat those infections with targeted drugs rather than broad-spectrum antibiotics, Lipsky says.