Reading Comprehension

Test: Can you remove this sentence and still understand the passage's central point? If NO → it is the main idea. If YES → it is a detail. Main idea answers the question: 'What is this passage mostly about?' Look for broad, general statements — not specific facts, numbers, or examples.

Major details are the reasons, examples, statistics, or explanations the author uses to prove or develop the main idea. Example: Main idea = 'Hand hygiene is the most effective infection prevention measure.' Major detail = 'Studies show that hand hygiene compliance reduces healthcare-associated infections by 50%.'

Minor details add color or specificity to major details but do not directly support the main idea. Test questions rarely ask about minor details — they appear as wrong-answer options that are 'true but too specific' or 'mentioned in the passage but not the main point.'

When a main idea is stated directly (explicit), it appears as a sentence in the passage — usually the first or last sentence of the first paragraph. When implied (implicit), no single sentence states the main idea; you must synthesize across the passage. Ask: 'What one statement would all the details support?'

Signal words: 'is defined as,' 'means,' 'refers to,' 'or' (in parentheses), commas setting off an explanation. Example: 'The patient experienced dysphagia, or difficulty swallowing, after the stroke.' The word after 'or' defines dysphagia.

Signal words: 'also called,' 'also known as,' 'in other words,' 'similarly,' or 'likewise.' Example: 'The medication is contraindicated — similarly prohibited — during pregnancy.' Prohibited = contraindicated.

Signal words: 'but,' 'however,' 'although,' 'unlike,' 'in contrast,' 'whereas,' 'on the other hand.' Example: 'Unlike the benign tumor, the malignant one spread rapidly.' You may not know malignant, but it contrasts with benign — so it is dangerous/harmful.

Signal words: 'such as,' 'for example,' 'for instance,' 'including,' 'like.' Example: 'Pathogens such as bacteria, viruses, and fungi can cause infection.' From the examples, pathogens = disease-causing microorganisms.

No signal word — you synthesize the context. Example: 'The new protocol was cumbersome. Nurses spent 20 extra minutes per patient documenting every step, and several complained that it slowed care.' From context, cumbersome = difficult, awkward, or time-consuming.

Read the questions (not answer choices) before reading the passage. This turns passive reading into targeted searching. You will spot the main idea, key details, and tone-relevant language immediately instead of re-reading after.

First paragraph: introduces the topic, often states or implies the main idea. Last paragraph: conclusion or summary. Middle paragraphs provide supporting details — skim them initially, reading only topic sentences (first sentence of each paragraph).

When you encounter a key term, number, or opinion-signaling word ('importantly,' 'should,' 'must,' 'unfortunately'), note it mentally. These are where evidence-based and tone questions will point. Spend time here, not on minor details.

Wrong answers on main idea questions are usually: too specific (a detail, not the whole picture), too broad (beyond what the passage covers), opposite of what the passage says, or too extreme ('always,' 'never,' 'only,' 'all'). Eliminate these first.

For 'which statement from the passage best supports...' questions, go back to the passage. Line-level questions require re-reading the specific lines, not relying on your memory summary of the passage.

Healthcare texts frequently use sentences like: 'Although the patient, who had been admitted three days prior following an acute exacerbation of his chronic obstructive pulmonary disease, demonstrated initial improvement, his oxygen saturation subsequently declined, necessitating re-evaluation of his respiratory status.' Strategy: Find the subject (patient), find the main verb (demonstrated, declined), ignore all embedded clauses first, then add them back. Practice stripping sentences to their skeleton.

Clinical writing uses passive voice constantly: 'The medication was administered at 0800.' 'Vital signs were obtained.' 'The patient was assessed.' In passive voice, the subject receives the action rather than performing it. To find meaning: convert passive to active ('The nurse administered the medication at 0800'). On HESI/TEAS, passive-voice sentences often appear in comprehension passages — identify what action occurred and what was affected.

Academic and clinical writers use hedging to signal uncertainty or caution: 'This medication may cause drowsiness.' 'Results suggest an association.' 'The findings appear consistent with...' Hedging language is important for HESI/TEAS inference questions — if the passage says 'may' or 'could,' an inference of certainty is too strong. Correct inference: 'There is a possible link.' Wrong inference: 'There is a definite link.'

Words that confuse ESL learners because they have both everyday and clinical meanings: ACUTE (everyday: sharp/clever → clinical: sudden onset, short duration). CHRONIC (everyday: habitual → clinical: long-lasting condition). POSITIVE (everyday: good → clinical: test found what it was looking for, e.g., 'positive blood culture' means bacteria were found, NOT a good result). NEGATIVE (clinical: test did not find what it was looking for — often a good result). PRODUCTIVE (clinical: a cough that brings up mucus). COMPENSATED (clinical: the body is maintaining function despite a problem). STABLE (clinical: condition is not changing, not necessarily improving).

Contrast signals (but, however, although, despite, in contrast, yet, whereas): The idea AFTER these words is usually what the author emphasizes — and often where the main idea lives. Cause-effect signals (because, therefore, thus, as a result, consequently, due to): These connect a cause to its result — critical for clinical reasoning passages. Addition signals (furthermore, moreover, in addition, also): Add supporting details, not the main idea. Summary signals (in conclusion, therefore, in summary, overall): Often followed by the main idea in academic texts.