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THE FOOD PYRAMID:
The food pyramid is a visual representation of how the different food groups can be combined to form a healthy diet. Although it was a vital part of dietary guidelines for years before being replaced by the �MyPlate� model, the pyramid was constantly analyzed and revised as additional study was done in nutritional fields. A few years ago, the pyramid underwent a change regarding the unique dietary needs of seniors.
Modifications in the pyramid for older adults included an emphasis on fiber and calcium, as well as on vitamins D and B12. By incorporating these changes, the pyramid indicated that the nutrients found in a person�s routine daily consumption typically are not enough for seniors. Seniors need supplementation. As people age, they tend to move less and thus need fewer calories to maintain their weight. Because seniors tend to eat a more limited amount, dietitians urge them to choose wisely. They are encouraged to eat nutrient-rich meals featuring such foods as fruits, vegetables, low-fat dairy products, and high-fiber whole grains.
The revised pyramid also focused on the importance for older people of ingesting adequate amounts of fluids daily. This helps to ensure proper digestion and prevent dehydration. Finally, the revised pyramid included information on incorporating exercise and other physical activities into the lives of older adults. Suggestions included swimming, walking, or simple yard work. With recent reports indicating that obesity levels for people older than 70 years of age are climbing, performing some type of regular exercise is more essential than ever.
What is the main idea of the passage?
- A. Senior citizens need to increase their calcium and vitamin D intake.
- B. The food pyramid was revised to reflect the needs of seniors.
- C. Physical activity is a new addition to the food pyramid.
- D. The revised food pyramid looks more like a food square.
Correct Answer: B
Rationale: The passage discusses the revision of the food pyramid specifically to address the unique dietary needs of seniors. It emphasizes how the changes were made based on ongoing research and analysis, indicating a broader focus on senior nutrition rather than just individual nutrients or exercise. Thus, option B captures the essence of the passage as it succinctly summarizes the main idea.
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MRSA:
Methicillin-resistant Staphylococcus aureus (MRSA) is a form of the Staphylococcus aureus bacterium that is resistant to antibiotics and, as a result, is very difficult to treat. MRSA now kills more Americans every year than HIV/AIDS, and the rates of infection are rising. Methicillin, an antibiotic introduced in the 1960s, was intended to combat Staphylococcus aureus, which is ubiquitous in hospitals. However, within a year of its introduction, doctors began finding strains of bacteria that had already developed immunity to methicillin. By the 1990s, MRSA had become the leading hospital-acquired skin infection in the United States.
At the same time MRSA started appearing outside of hospitals, different strains of the bacteria emerged, spreading just as quickly and being just as dangerous. In the past 15 years, MRSA bacteria have become ubiquitous not only in hospitals but also in gyms, locker rooms, swimming pools, and other settings with frequent human contact.
Researchers in Ireland are developing technology that may significantly halt the spread of hospital-associated MRSA bacteria. They have created a textile made of nanomaterials 1,000 times smaller than a human hair. These textiles have been shown to halt the spread of infection and can be used for linens, drapes, and upholstery in hospitals. The potential for this technology to reduce instances of hospital-associated MRSA is staggering.
To reduce your risk of community-associated MRSA infection, regularly wash your hands, cover all open wounds with a clean bandage, and avoid sharing personal items like razors or towels.
What is the main idea of the passage about MRSA?
- A. Methicillin-resistant Staphylococcus aureus (MRSA) is a significant problem both within and outside of hospitals, and there are ways to mitigate the risk.
- B. A new textile made of nanomaterials could significantly reduce the spread of hospital-associated MRSA infections.
- C. There are multiple strains of MRSA, and they pose various risks beyond just fatality.
- D. MRSA is a significant problem both within and outside of hospitals, but there are ways to mitigate the risk.
Correct Answer: D
Rationale: The main idea of the passage is that MRSA is a significant issue both within and outside of hospitals. It highlights the challenges posed by MRSA, including its resistance to antibiotics, high mortality rates, and widespread presence in various settings. While the development of new technologies like nanomaterial textiles shows promise in reducing hospital-associated MRSA, the passage also emphasizes the importance of practicing good hygiene to prevent community-associated MRSA infections. Choices A, B, and C are incorrect because they do not capture the comprehensive overview of MRSA provided in the passage. Choice A encompasses the main idea by emphasizing the significance of MRSA and ways to mitigate the risk. Choice B focuses on a specific solution rather than the broader issue of MRSA. Choice C is incorrect as it oversimplifies the risks associated with MRSA strains by only mentioning fatality.
Life Expectancy in the US:
Where would you expect the United States to rank in life expectancy, the average number of years a person is expected to live? Near the top in the world, right? Well, surprise—we rank number 31, after Costa Rica and right before Cuba. World Health Organization data from 2015 indicate that the average life expectancy worldwide is 71 years—slightly more for females and slightly less for males. In the United States, we beat that average by around eight years. Yet we are several years behind Japan, with a female life expectancy of 86.8 years, or Switzerland, with a male life expectancy of 81.3 years. Even relatively poor European countries, such as Slovenia, Cyprus, and Malta, do better than we do.
There are a number of indicators that lead to our low score among wealthy nations. Those include obesity and its accompanying heart disease and diabetes, car crash deaths, gun violence, and embarrassingly high infant mortality rates. We eat more, drive more, have more guns, and allow poor women to go through pregnancies unattended by regular physicians. There are many other health indicators that separate us from other developed nations, but most correspond to the extreme wealth inequities in the United States.
It is too soon to tell whether an increase in insured Americans will help to turn this distasteful data around. Certainly those nations with universal health care have better numbers than we do. Much of our problem has to do with lifestyles that will not be easy to alter. We continue to build living spaces that are not walkable, to work long hours and drive long distances, to overeat—and we love our Second Amendment right to bear arms. It is difficult to imagine how we will overcome these realities and improve our longevity status.
What is the overall tone of the essay?
- A. Apathetic
- B. Fascinated
- C. Discouraged
- D. Hopeful
Correct Answer: C
Rationale: The tone of the essay is discouraged as it expresses concern about the U.S.'s lower life expectancy ranking and contributing factors.
Lifewings Partners:
What do pilots, astronauts, physicians, and risk managers have in common? In this case, they are all part of Lifewings Partners, an organization based in Memphis, Tennessee, dedicated to eliminating mistakes and accidents in medical settings across the United States.
Lifewings Partners highlights the need for vigilance in medical environments. According to the Institute of Health, approximately 98,000 patients die each year in U.S. healthcare settings due to medical errors. Examples of such errors include a man who had the wrong testicle removed in a Los Angeles hospital, a young boy who suffered brain damage from anesthesia during a routine hernia surgery, and a hospital in Rhode Island that performed brain surgery on the wrong side of the brain on three different patients in less than a year.
To combat these issues, Lifewings Partners not only advocates for internal changes in medical procedures and the establishment of checklists but also focuses on patient education. They recommend that consumers research a hospital’s safety record online, discuss safety standards with their doctors, and inquire about facilities with the best safety records.
Founder Steve Harden emphasizes, “Just because a hospital has a great reputation for cutting-edge medicine doesn’t necessarily mean the hospital is the safest place to go for routine procedures.” He warns that some mistakes are too significant and irreversible to risk, underscoring the importance of careful selection and preparation in healthcare settings.
Which statement about Lifewings Partners is a fact?
- A. Everyone should have access to Lifewings.
- B. The people in Lifewings are modern heroes.
- C. Steve Harden was clever to found Lifewings.
- D. Lifewings is based in Memphis, Tennessee.
Correct Answer: D
Rationale: The statement that Lifewings is based in Memphis, Tennessee, is a verifiable fact.
BEAUTY THE BEAST:
In recent years, there have been frightening headlines about harmful ingredients such as mercury and lead in ordinary cosmetics. However, these are hardly the first examples of people paying a heavy price to conform to cultural ideals of beauty. This tradition has been around for centuries.
Ancient Egyptians decorated their eyes with malachite (a green ore of copper), galena (a lead sulfide), and kohl (a paste made from soot, fat, and metals such as lead). While these cosmetics may have enhanced their appearance, they also led to health problems such as insomnia and mental confusion.
The ancient Greeks took these practices even further. They applied lead to their entire faces to clear their complexions and improve skin coloration. This practice resulted in health issues ranging from infertility to insanity. The lead ointment whitened their faces�a sign of beauty�while red lead was added to the cheeks for a rosy glow. To make matters worse, they also used hair dyes containing lead.
The Romans adopted these toxic beauty practices, and some historians suspect that lead poisoning contributed to the decline of the Roman Empire. As recently as 2007, lipsticks and mascaras were found to contain lead and mercury. Additionally, phthalates�industrial chemicals that can cause birth defects and infertility�are present in personal care products such as shampoos, lotions, perfumes, and deodorants.
An old saying states that beauty has a price, and sometimes that price may be much higher than consumers realize. It is important to be aware of what you are putting on your face.
What is the meaning of the word conform as used in the first paragraph?
- A. Authorize
- B. Fit in
- C. Hand over
- D. Bewilder
Correct Answer: B
Rationale: In this context, "conform" means to fit in with societal norms or standards, particularly those related to beauty. The passage describes how individuals may compromise their health to meet these cultural ideals, indicating that conformity relates to adhering to social expectations of beauty, making option B the correct interpretation.
Life With Dementia:
Years of research have proven that Alzheimer’s disease, along with other types of dementia, elevates the risk of dying early in the majority of patients. In a recent study performed by the Institute of Public Health at the University of Cambridge, scientists set out to determine exactly how long people were likely to survive following the onset of dementia. Currently, approximately 24 million people throughout the world suffer from the memory loss and orientation confusion that comes with Alzheimer’s disease and other forms of dementia. That number appears to double every 20 years, and experts predict that by the year 2040, there will be 81 million people living with some level of the condition.
The more researchers and doctors can learn about what causes the problem, as well as how to treat it, the better prepared they will be to handle these millions of future patients. To determine how people’s life spans are affected by this medical condition, the scientists studied 13,000 seniors for a period of 14 years. During that time, 438 people developed dementia, the vast majority of whom died. The factors of age, disability, and gender were analyzed to see how they affected longevity as well.
Conclusions from the study showed that women tended to live slightly longer than men, averaging 4.6 years from the onset of dementia, as opposed to 4.1 years for men. The patients who were already weak or frail at the onset of the dementia died first, regardless of age. Marital status, living environment, and degree of mental decline, although relevant factors, were not shown to be influential. Researchers from the University of Cambridge hope that this new information will help patients, clinicians, care providers, service providers, policy makers, and others who deal with dementia. The more they know, the better they will be able to respond to this heartbreaking condition.
What is the meaning of the word onset as used in the first paragraph?
- A. Cure rate
- B. Incubation period
- C. Remainder
- D. Commencement
Correct Answer: D
Rationale: Onset in this context means commencement, referring to the beginning of dementia symptoms.