Reading Comprehension Practice Test HESI A2 Related

Sickle-Cell Anemia:
Healthy red blood cells are shaped like a disc. Each cell contains the protein hemoglobin, which carries oxygen throughout the body. In some people, a crescent-shaped cell forms instead of the normal disc-shaped cell. The crescent-shaped cells contain abnormal hemoglobin. These sickle-shaped cells are fragile and are unable to carry oxygen properly throughout the body.
Sickle-cell anemia is an inherited disease that affects about 72,000 people in the United States. It is more common among people of South American or African descent. The genes for sickle-cell anemia are inherited from both parents. When both parents carry a gene for the trait for sickle-cell, there is a one in four chance that they will pass the disease on to their children.
Symptoms of sickle-cell anemia can include sudden occurrences of extreme abdominal and back pain, bone pain, fever, fatigue, and a rapid heart rate. One patient compared the pain in his back to a jackhammer and said the pain could take over his entire body. Another patient, an eight-year-old girl, described fevers and the feeling of someone squeezing her arms and legs. Cycles of symptoms are often unpredictable and can occur infrequently or almost constantly. Some people who are affected report weekly occurrences of persistent pain, while others report occurrences once a month. Some report that relief comes only by using powerful painkillers. For others, relief comes with bed rest and a hot-water bottle. Most agree that while the challenges of managing sickle-cell anemia are great, with diligent care, it can be managed.

What is the overall tone of the essay?

• A. Informative
• B. Insensitive
• C. Grim
• D. Uplifting

Evolution of the CDC:
The Centers for Disease Control and Prevention (CDC) started in 1946 as the Communicable Disease Center (CDC). Its original goal was to stop malaria in the United States. From a small office in Atlanta, health workers spread out over the South, spraying mosquitoes and using shovels to eliminate low spots of standing water. At that time, most of the CDC’s workers were not doctors; the need was for entomologists and engineers. The founder of the CDC, Dr. Joseph Mountin, enlarged the organization’s mission to fight communicable diseases of all kinds, and over the next 20 years, the CDC would focus on smallpox, measles, and polio.
In 1970, the name was changed to the Center for Disease Control, but the mission continued to expand. By 1980, the CDC was working not only on the eradication of existing diseases but also on disease prevention. By this point, it had hundreds of doctors and researchers looking into health problems such as depression and addiction. The name changed again, to the Centers for Disease Control and Prevention. Today, the CDC has thousands of employees and coordinates research activities with public health agencies worldwide. It is especially known for its work to protect people from epidemics and unexpected health threats, but its everyday work in the areas of environmental health, injury prevention, birth defects, healthy schools and workplaces, and health education is just as important and beneficial to all Americans.

What is the overall tone of the essay about A Short History of the CDC?

• A. Appreciative.
• B. Awestruck.
• C. Somber.
• D. Disheartened.

Barefoot Running:
Barefoot running is a rapidly growing movement that encourages people to leave their shoes at home and take to the streets in only their bare feet. Barefoot running advocates are quick to point out that while shoe technology has advanced significantly since the advent of the modern running shoe, there has been little decline in the number of injuries that occur from running. Humankind has been running for millions of years, and modern running shoes have existed for less than 50 years. By wearing larger shoes with excessive cushioning, we are changing the biomechanics of how we run, thereby increasing the likelihood for injury.
Early humans ran with a “forefoot strike,” landing closer to the balls of their feet and using their foot’s natural arch as a spring to store and release energy. Modern shoe designs encourage a “heel strike,” landing on the heel and rolling forward to the toe. Barefoot running advocates believe “heel striking” replaces your reliance on the natural mechanics of your feet with the cushioning provided by your shoes, and that this is what causes many of the injuries affecting runners today.
Critics assert that while our feet may have been designed for barefoot running, our road surfaces were not. Concrete and asphalt are much firmer than any surface where our human ancestors would have been running. Broken glass and debris also may make barefoot running a significant challenge. There is little consensus when it comes to the safety and effectiveness of barefoot running, but even the most skeptical of podiatrists will agree that wearing heavily padded shoes too often can result in a weaker foot and leg structure. Spend some extra time walking barefoot around your house; aside from building up the muscles and tendons that strengthen your feet, you may just find yourself tempted to go for a run.

Which statement would not be inferred by the reader in the passage about Barefoot Running?

• A. Runners who take their shoes off may face some hazards.
• B. Modern running shoes may increase the odds for injury.
• C. Walking barefoot is good for the muscles and tendons.
• D. Before 1950, even Olympic runners ran barefoot.

Aromatherapy:
For years, aromatherapy has been touted as a safe and natural way to relax and even heal. Essential oils from a variety of scents have been added to candles and sprays to help people feel better. However, a recent study performed at Ohio State University says that these smells, as nice as they may be, do not do a thing to improve people’s health.
To find out if aromatherapy actually works, the researchers tested two of the most popular scents: lemon and lavender. First, test subjects had their heart rate, blood pressure, stress hormones, and immune function measured and noted. Next, they were subjected to mild stressors and then told to sniff one of the scents to see if the scent would help them to relax. Finally, all the subjects were tested again to look for improvement. No significant changes were noted—even in people who had previously stated they were true believers in the power of aromatherapy.
Of course, this does not necessarily prove that aromatherapy is worthless, either. It was just one small study, pitted against the opinions of thousands of consumers who swear by peppermint on their pillow for an upset stomach or vanilla for a headache. More tests will be done, but in the meantime, a whiff of lavender, lemon, or other scents will certainly do no harm—and can be quite pleasant at the same time.

Identify the overall tone of the essay about Aromatherapy.

• A. Congratulatory.
• B. Uncertain.
• C. Annoyed.
• D. Distressed.

HYPERTENSION:
The term hypertension is used to describe the condition of chronically high blood pressure. People who are obese, experience a lot of stress, smoke tobacco products, have a diet with too much salt in it, or have diabetes are often at a higher risk for hypertension. As well, African Americans are more likely to have hypertension than other population groups.
Hypertension often develops over many years. Older people are most often diagnosed with hypertension. One reason for this is that blood vessels lose elasticity and stiffen as a person ages. This creates more resistance to the blood flowing through the body and elevates blood pressure.
Symptoms of hypertension can include blurred vision, headaches, a buzzing in the ears, fatigue, an irregular heartbeat, and nosebleeds. Hypertension that goes untreated over a period of time can lead to serious complications such as kidney disease, heart disease, loss of vision, heart attack, brain damage, and even early death.
Fortunately, treating hypertension reduces blood pressure and can lower the risk of complications. For many people, losing weight can result in a significant decrease in blood pressure. For others, physicians may prescribe one or more medications to help bring blood pressure down into a safe range.
One thing is certain: physicians believe that people over the age of 20 should monitor their blood pressure by having it checked at least once a year. Those with a history of hypertension in the immediate family should have it checked more frequently.

Which statement would not be inferred by the reader in the passage about Hypertension?

• A. Maintaining a healthy weight may help to prevent hypertension.
• B. There is presently no reliable treatment for hypertension.
• C. Your ethnicity may contribute to your risk for hypertension.
• D. A 60-year-old is more likely to have hypertension than a teenager is.