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Read the passage and then answer the question. Gold has been used in the field of medicine for over four thousand years. The ancient Chinese used drugs containing gold to treat everything from smallpox and measles to joint and lung disease , apparently considering gold a sort of panacea. Medical manuals in seventeenth-century Europe suggested using gold for fevers, fainting, and melancholy. Even during the 1920s.gold therapy was a popular treatment for tuberculosis Despite its popularity, however, the efficacy of medicinal gold was rarely supported by reliable scientific evidence. Because medicines and medical practice were not always well regulated, early doctors were free to prescribe treatments -such as gold-without proof that they actually worked. Modern research, however,indicates that gold does have some well-founded medical uses. For instance, gold salts have been shown to palliate the symptoms of rheumatoid arthritis. When patients receive regular injections of gold , it begins to accumulate in their muscles; this reduces joint inflammation, relieving pain and preventing further damage. Researchers are also actively investigating the ability of gold nanoparticles to target cancer cells, which could help doctors identify the disease and deliver medication more efficiently. Such findings confirm that gold is, as people have believed for thousands of years, rich in medical potential. What is the meaning of efficacy as used in the passage? accessibility efficiency safety effectiveness

Question

Read the passage and then answer the question.
Gold has been used in the field of medicine for over four thousand years. The ancient
Chinese used drugs containing gold to treat everything from smallpox and measles to
joint and lung disease , apparently considering gold a sort of panacea. Medical manuals in
seventeenth-century Europe suggested using gold for fevers, fainting, and melancholy.
Even during the 1920s.gold therapy was a popular treatment for tuberculosis Despite its
popularity, however, the efficacy of medicinal gold was rarely supported by reliable
scientific evidence. Because medicines and medical practice were not always well
regulated, early doctors were free to prescribe treatments -such as gold-without proof
that they actually worked.
Modern research, however,indicates that gold does have some well-founded medical
uses. For instance, gold salts have been shown to palliate the symptoms of rheumatoid
arthritis. When patients receive regular injections of gold , it begins to accumulate in their
muscles; this reduces joint inflammation, relieving pain and preventing further damage.
Researchers are also actively investigating the ability of gold nanoparticles to target
cancer cells, which could help doctors identify the disease and deliver medication more
efficiently. Such findings confirm that gold is, as people have believed for thousands of
years, rich in medical potential.
What is the meaning of efficacy as used in the passage?
accessibility
efficiency
safety
effectiveness

Read the passage and then answer the question. Gold has been used in the field of medicine for over four thousand years. The ancient Chinese used drugs containing gold to treat everything from smallpox and measles to joint and lung disease , apparently considering gold a sort of panacea. Medical manuals in seventeenth-century Europe suggested using gold for fevers, fainting, and melancholy. Even during the 1920s.gold therapy was a popular treatment for tuberculosis Despite its popularity, however, the efficacy of medicinal gold was rarely supported by reliable scientific evidence. Because medicines and medical practice were not always well regulated, early doctors were free to prescribe treatments -such as gold-without proof that they actually worked. Modern research, however,indicates that gold does have some well-founded medical uses. For instance, gold salts have been shown to palliate the symptoms of rheumatoid arthritis. When patients receive regular injections of gold , it begins to accumulate in their muscles; this reduces joint inflammation, relieving pain and preventing further damage. Researchers are also actively investigating the ability of gold nanoparticles to target cancer cells, which could help doctors identify the disease and deliver medication more efficiently. Such findings confirm that gold is, as people have believed for thousands of years, rich in medical potential. What is the meaning of efficacy as used in the passage? accessibility efficiency safety effectiveness

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NeilMaster · Tutor for 5 years

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The meaning of efficacy as used in the passage is effectiveness.
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