HomeReading › Key Ideas and Details

Key Ideas and Details

Finding the main idea, tracking supporting details, summarising accurately, and following multi-step written directions.

10 free questionsFull explanationsPart of TEAS Reading

What this area covers

Concepts that come up most in our question bank:

healthcaresupporting detailsmain ideainferenceauthor's purposeconclusiontext structurevocabulary in contextcompare and contrasthealthcare ethicsorganizational patternsummary

Where students lose marks

The most common mistake is choosing an answer that is true but not the main idea. A detail can be perfectly accurate and still be the wrong answer — the question is asking what the passage is mostly about, not what it mentions.

How to study it

Practise stating the main idea of a paragraph in one sentence before you look at the options. If your sentence does not match any option closely, re-read rather than picking the closest-sounding one. For directions questions, read the whole sequence before answering; the order matters and the final step often changes the result.

Practice questions

Answer these, then check them to see the full explanation for every option — including why each wrong answer is wrong.

  1. Question 1

    Read the passage

    Falls are the leading cause of injury-related death among adults aged 65 and older in the United States. Each year, approximately 36 million falls occur among older adults, resulting in more than 32,000 deaths. Risk factors for falls include muscle weakness, balance problems, vision impairment, certain medications, and environmental hazards such as loose rugs and poor lighting. Evidence-based fall prevention strategies include regular exercise programs focusing on strength and balance, medication reviews to reduce fall-risk drugs, annual vision checks, and home safety assessments to remove tripping hazards.

    What is the author's primary purpose in writing this passage?

  2. Question 2

    Read the passage

    Sleep plays a vital role in maintaining immune system function. During sleep, the body produces cytokines, proteins that help fight infection and inflammation. Research has shown that people who regularly get fewer than seven hours of sleep per night are nearly three times more likely to develop a cold when exposed to the virus compared to those who sleep eight or more hours. Chronic sleep deprivation has also been linked to reduced vaccine effectiveness, as the immune system requires adequate rest to mount a strong antibody response. Healthcare professionals working night shifts or extended hours are particularly vulnerable to these effects.

    Based on the passage, which statement best summarizes the relationship between sleep and immune function?

  3. Question 3

    Read the passage

    Foodborne illness affects approximately 48 million Americans each year, resulting in 128,000 hospitalizations and 3,000 deaths. The most common causes of foodborne illness include norovirus, Salmonella, Clostridium perfringens, and Campylobacter. Among these, norovirus accounts for the largest number of cases, while Salmonella causes the most hospitalizations. Proper food handling practices, including washing hands before preparing food, cooking meats to safe internal temperatures, and refrigerating leftovers within two hours, are essential for preventing these illnesses.

    According to the passage, what is the most common cause of foodborne illness in the United States?

  4. Question 4

    Read the passage

    Antibiotic resistance occurs when bacteria evolve to survive exposure to antibiotics that previously killed them. The Centers for Disease Control and Prevention estimates that at least 2.8 million antibiotic-resistant infections occur in the United States each year, resulting in more than 35,000 deaths. Contributing factors include the overprescription of antibiotics for viral infections (against which antibiotics are ineffective), patients failing to complete prescribed antibiotic courses, and the widespread use of antibiotics in livestock farming. Without urgent action, experts warn that common infections could once again become life-threatening.

    What conclusion can be drawn from the passage about antibiotic resistance?

  5. Question 5

    Read the passage

    Adequate hydration is essential for maintaining normal body function. Water makes up approximately 60% of an adult's body weight and is involved in nearly every physiological process, including nutrient transport, temperature regulation, joint lubrication, and waste elimination through the kidneys. Dehydration, even at mild levels, can impair cognitive function, reduce physical performance, and cause headaches and fatigue. Health authorities generally recommend that adults consume at least eight 8-ounce glasses of water daily, though individual needs vary based on activity level, climate, and health status.

    Which sentence from the passage best expresses the main idea?

  6. Question 6

    Read the passage

    Clinical rotations are an integral part of nursing education, providing students with the opportunity to apply theoretical knowledge in real-world healthcare settings. During these rotations, students work under the supervision of experienced nurses and clinical instructors, practicing skills such as patient assessment, medication administration, wound care, and therapeutic communication. Studies have shown that students who complete diverse clinical experiences across multiple settings — including medical-surgical units, pediatrics, obstetrics, and mental health — report higher confidence and clinical competence upon graduation. Without clinical rotations, nursing education would remain purely academic, leaving graduates unprepared for the demands of professional practice.

    Based on the passage, why are nursing students required to complete clinical rotations?

  7. Question 7

    Read the passage

    Patient compliance with prescribed treatment plans remains one of the greatest challenges in healthcare. Research indicates that approximately 50% of patients with chronic conditions do not take their medications as directed. Factors influencing compliance include the complexity of the medication regimen, the patient's understanding of their condition, the cost of medications, side effects experienced, and the quality of the patient-provider relationship. Among these factors, studies consistently identify the patient-provider relationship as the most influential: patients who feel heard, respected, and involved in treatment decisions are significantly more likely to follow their prescribed plans.

    According to the passage, which factor most strongly influences a patient's decision to follow a prescribed treatment plan?

  8. Question 8

    Read the passage

    Electronic health records (EHRs) have transformed how patient information is documented, stored, and shared across healthcare systems. By replacing paper charts with digital records, EHRs have improved legibility, reduced medication errors caused by illegible handwriting, and enabled instant access to patient history by authorized providers anywhere in the system. However, the transition has not been without drawbacks. Many clinicians report that excessive documentation requirements in EHR systems reduce the time available for direct patient care, and concerns about data breaches have intensified as medical records become increasingly digital. Despite these challenges, most healthcare leaders view EHRs as a net positive development that continues to evolve.

    What can be inferred about the author's attitude toward electronic health records (EHRs)?

  9. Question 9

    Read the passage

    Triage is a system used in emergency departments to prioritize patients based on the severity of their conditions rather than their order of arrival. When patients enter the emergency department, a trained triage nurse assesses their symptoms, vital signs, and medical history to assign a priority level. Patients with life-threatening conditions, such as heart attacks, strokes, or severe trauma, are seen immediately, while those with less urgent complaints, such as minor sprains or cold symptoms, may wait longer. The goal of triage is to ensure that limited medical resources are allocated to the patients who need them most urgently, maximizing the number of lives saved and minimizing preventable deterioration.

    What is the primary purpose of a triage system in an emergency department?

  10. Question 10

    Read the passage

    Childhood obesity rates in the United States have tripled since the 1970s, with nearly 20% of children aged 6 to 19 now classified as obese. Factors contributing to this trend include increased consumption of processed foods and sugary beverages, reduced physical activity due to screen time, and limited access to affordable healthy foods in low-income neighborhoods. Obese children are at higher risk for type 2 diabetes, asthma, sleep apnea, and social-emotional challenges including bullying and low self-esteem. Long-term studies indicate that children who are obese are five times more likely to remain obese as adults.

    Which of the following is a logical conclusion that can be drawn from the passage?

Keep going

TEAS Dojo has 100 questions on key ideas and details alone, plus timed full-length exams across all four sections.

Start studying free →