Reading Comprehension Practice Test HESI A2 Related

SUNLIGHT:
Most people are familiar with the damaging effects of the sun on unprotected skin, but not enough attention is paid to the many positive effects of receiving direct exposure to sunlight on a regular basis. The most compelling argument for increased exposure to sunlight is the need for vitamin D in the human body. Vitamin D is integral for maintaining healthy bones and preventing diseases like rickets and osteoporosis. It is synthesized by the skin when it comes into contact with the UVB rays found in sunlight. In order to ensure you are receiving the proper amount of vitamin D, it is recommended to get 15 minutes of direct exposure to sunlight at least two or three times a week. UVB rays are made less intense when passing through clouds and pollution, and they will not transmit through glass or sunscreen. UVB rays are also less effective the farther you are from the equator. People with darker skin require more exposure to the sun to receive the same amount of vitamin D.
In addition to vitamin D, sunlight will help regulate the circadian rhythms that ensure you get a good night’s sleep. Sunlight helps to prevent an overactive immune system, which may prove useful in preventing autoimmune diseases like psoriasis and lupus. Recent studies have even shown that sunlight can help lessen the symptoms of Alzheimer’s disease. The negative impacts of excess exposure to sunlight should not be ignored; cancers resulting from skin damage are a real concern that must be taken seriously. But the importance of vitamin D and the other positive impacts of sunlight make a compelling argument for making sure we are spending enough time every week in direct sunlight.

What is the meaning of the word compelling as used in the passage about Sunny-Side Up?

• A. Reasonable.
• B. Convincing.
• C. Common.
• D. Worthwhile.

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.

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 meaning of the word diligent as used in the last paragraph about Sickle-Cell Anemia?

• A. Dispersed.
• B. Incensed.
• C. Painstaking.
• D. Demanding.

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.

What is the meaning of the word consensus as it is used in the last paragraph about Barefoot Running?

• A. Investigation.
• B. Purpose.
• C. Trepidation.
• D. Unanimity.

CONCUSSIONS:
A concussion is a traumatic injury to the brain that can interfere with the way the brain processes information and functions. A concussion often results in severe headaches, diminished alertness, and even unconsciousness. While more than one million people in the United States suffer concussions every year, many believe that, like people, no two concussions are identical.
Recently, two professional baseball players suffered concussions. The first player was injured early in the season and tried twice to return to regular play but was not medically cleared to play until the following year. Even after eight months, this player reported a recurring condition of “fogginess” that seemed to linger. The second player had brief symptoms of sleepiness and involuntary movement, or “shakiness.” A few days later, and after several tests, the second player reported that the effects of the concussion had subsided, and he was cleared to play.
No matter the duration of a person’s recovery, refraining from trying to do too much, too soon is vital. A specialist at Boston University’s Center for the Study of Traumatic Encephalopathy believes that someone who suffers a second concussion while still recovering from the first risks an even longer recovery. Full recovery from concussions is possible. Problems are seldom permanent, and for most people who have had a concussion, the long-term prognosis is typically excellent. The first baseball player recently returned to his team. And though he was told by his physician that he has no greater risk than anyone else of suffering another concussion, other physicians believe that suffering one sports-related concussion increases the likelihood of suffering another.

What is the author's primary purpose in writing the essay about Concussions?

• A. To inform.
• B. To persuade.
• C. To entertain.
• D. To analyze.