Question:medium

Read the passage and answer the question that follows:
Read the passage below and answer the questions that follow. Hypertension, commonly known as high blood pressure, is often called a silent killer because it typically produces no obvious symptoms even as it steadily damages the arteries, heart, kidneys, and eyes. Blood pressure is recorded as two figures, systolic over diastolic, and a reading that persistently exceeds 140 over 90 millimetres of mercury is generally classified as hypertensive. Left unmanaged, chronically elevated pressure forces the heart to work harder than it should, thickening its walls and raising the long-term risk of heart attack, stroke, and kidney failure. Public health researchers point out that hypertension has become disproportionately common in urbanising, middle-income countries, where diets rich in processed sodium, sedentary lifestyles, and chronic stress converge. Unlike many chronic illnesses, hypertension is largely preventable and manageable through relatively inexpensive interventions: reducing salt intake, maintaining a healthy body weight, exercising regularly, and, where necessary, taking low-cost generic medication. The obstacle, researchers argue, is rarely medical knowledge but rather access, since routine blood pressure screening remains patchy in many low-resource health systems, and millions of people live for years without knowing their numbers. Some public health experts now advocate for community-level screening camps and pharmacist-led monitoring as a pragmatic bridge until primary healthcare systems can absorb the burden. Such measures, they note, cost little but could catch the condition before it silently causes irreversible damage.

What is the main idea of the passage?

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Write down the topic sentence of each of the three paragraphs separately, then look for the single option that ties all three together without exaggerating any one of them.
Updated On: Jul 8, 2026
  • Hypertension is a largely preventable and manageable condition whose real-world control is limited more by access to screening than by lack of medical knowledge.
  • Hypertension is untreatable and always leads to fatal outcomes.
  • Urbanisation has no relationship with the prevalence of hypertension.
  • Community screening camps are more effective than hospital-based treatment in every case.
Show Solution

The Correct Option is A

Solution and Explanation

Step 1: For a main-idea question, identify the topic sentence of each paragraph rather than any single detail, then see which option synthesises all three.
Step 2: Paragraph 1 topic: hypertension is a silent, damaging condition. Paragraph 2 topic: it is common in urbanising countries but "largely preventable and manageable", and the real obstacle is "access", not "medical knowledge". Paragraph 3 topic: low-cost screening measures can close that access gap.
Step 3: Combine the three topic sentences: the passage's throughline is that hypertension is manageable, and the barrier is access to screening, not medical understanding, which is best captured by option (a).
Step 4: Check the distractors against this synthesis. Option (b), "untreatable and always leads to fatal outcomes", contradicts paragraph 2 directly, which calls it "preventable and manageable". Option (c), "urbanisation has no relationship with prevalence", contradicts the sentence stating hypertension is "disproportionately common in urbanising, middle-income countries". Option (d) overstates paragraph 3's suggestion into an absolute claim ("in every case") that the passage never makes; the passage only calls screening camps a "pragmatic bridge", not superior to hospitals in every case.
Step 5: Only option (a) fits all three paragraphs without contradiction or overstatement.
Correct option: (1) Hypertension is a largely preventable and manageable condition whose real-world control is limited more by access to screening than by lack of medical knowledge.
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