Free HESI A2 Reading Practice Questions

Maria had ridden along on a dozen ambulance calls as a student, but this was her first shift as a licensed paramedic. The radio crackled with an address on the east side of town, an elderly man reporting chest pressure that had started an hour earlier. When she and her partner arrived, the man was pale and sweating, and he kept rubbing his left arm without seeming to notice he was doing it. His wife said he had barely touched his dinner, which was unusual for him. Maria attached the heart monitor while her partner started an oxygen line, and within minutes the strip showed a pattern she recognized from her training. She radioed ahead to the emergency department, gave a short clear report, and helped load the stretcher into the rig. Her hands were steady, even though her heart was pounding harder than the patient's monitor showed his was.

The label on the cereal box lists twelve grams of sugar per serving, which the manufacturer defines as thirty grams of cereal. It also reports two grams of fibre and one hundred and ten calories in that same serving. Frankly, twelve grams is far too much sugar for a breakfast food, and no responsible parent would buy it. The box carries a printed date showing it was packaged in March. A dietitian quoted on the side panel claims the cereal is a wonderful start to any child's day.

Anyone who has soaked in a bathtub has noticed it: after ten or fifteen minutes, the fingertips and toes pucker into deep ridges while the rest of the skin stays smooth. For decades, textbooks explained this as simple osmosis, water molecules seeping into the outer layer of skin and making it swell. That explanation, though tidy, turned out to be incomplete. Researchers studying nerve injuries noticed that patients with certain damaged nerves in a hand never wrinkled, even after a long soak, while the uninjured hand wrinkled normally. This clue pointed to the nervous system rather than passive soaking. Blood vessels beneath the fingertip skin appear to constrict on a signal from the autonomic nervous system, drawing the skin inward and forming the familiar tread-like pattern. Some scientists suspect the wrinkles improve grip on wet surfaces, much like the grooves on a tire channel away water. It is a wonderfully strange example of a habit assumed to be trivial turning out to reveal a small, functional piece of human design.

For a long time sleep was treated as a period when the brain simply switched off, a pause between the busy hours that mattered. Newer research tells a different story. During deep sleep the brain clears waste products that build up while we are awake, and it also strengthens the memories formed during the day, moving useful information into longer-term storage. People who lose even a few hours of sleep across a week show slower reactions and weaker recall on the following days. Because of this, many clinicians now treat regular sleep as part of recovery rather than a luxury, and they ask patients about their sleep habits alongside diet and exercise.

In a clinic, staff wear gloves, gowns, and sometimes face shields to avoid contact with body fluids. These items protect the wearer, but they also become contaminated during a shift, so removing them in the wrong order can spread germs to skin, clothing, or the next patient. Safety trainers teach a set order: gloves come off first, because they touch the most contaminated surfaces and gripping anything else while wearing them risks smearing germs everywhere. Hands are washed or sanitized right after gloves are removed, even though bare hands will touch more equipment soon. Next the face shield or goggles are lifted away from the back strap, not the front panel, since the front is presumed dirty. The gown is untied and rolled inward so the outer surface never brushes bare skin. A face mask, if worn, comes off last, and only by the ear loops. A final hand wash closes the routine. Clinics that skip steps or reverse this order see more staff exposure incidents than clinics that drill the sequence until it becomes automatic.

In 1816, a French physician named Rene Laennec faced an awkward problem. A young female patient's heart symptoms required close listening, but placing his ear directly against her chest, as was the custom of the time, felt inappropriate to him. Recalling that sound travels well through solid materials, Laennec rolled a sheet of paper into a tight cylinder and pressed one end to her chest, the other to his ear. He was startled by how clearly he could hear her heartbeat, more distinct than with direct contact. Laennec spent the next three years refining the idea, eventually crafting a hollow wooden tube about a foot long. He called his invention the stethoscope, from Greek words meaning chest and to view. Physicians were initially skeptical of the wooden tube, but it slowly proved its worth, allowing doctors to detect lung and heart conditions without physical contact. Laennec's simple solution to a moment of discomfort became one of medicine's most enduring tools, still draped around the necks of clinicians two centuries later.