what is the best summary of the passage

HESI A2

HESI A2 Reading Comprehension V1 2024

1. What is the best summary of the passage?

A. Electric currents within the body are due to electrostatic charges set off by the heart. Medical staff are trained to recognize any abnormalities within the heart.
B. Every individual has unique electric currents on the surface of the body. The ECG measures and records these electric currents.
C. The ECG systematically and rather quickly measures the stages at which the 'wave of excitation' occurs within the heart and records them. This wave has three distinct steps that spread from the SA node to the AV node.
D. The ECG measures the electric currents within the body. These currents are detected on the surface of the body when the body is connected to an amplifier.

Correct answer: C

Rationale: The correct summary of the passage is option C. The passage explains how the ECG systematically measures and records the 'wave of excitation' that occurs within the heart in three distinct steps, spreading from the SA node to the AV node. This summary effectively captures the main focus of the passage. Option A is incorrect because it only mentions the detection of electric currents in the body and recognizing abnormalities by medical staff, missing the key information about the 'wave of excitation' and its stages. Option B is incorrect as it focuses solely on the measurement and recording of unique electric currents on the body's surface, neglecting the specific process described in the passage. Option D is also incorrect as it provides a general description of how the ECG measures electric currents without emphasizing the specific stages of the 'wave of excitation' as detailed in the passage.

2. Which of the following is not listed as a detail in the passage about Aromatherapy?

A. Subjects were given mild stressors.
B. Lemon and lavender scents were tested.
C. Vanilla worked better than lemon for stress.
D. The study took place at Ohio State University.

Correct answer: C

Rationale: The passage does not support the idea that vanilla worked better than lemon for stress relief; instead, it focuses specifically on lemon and lavender as the tested scents. The absence of this information regarding vanilla makes C the correct answer, as it is not included in the details provided in the passage.

3. What does sleep apnea cause?

A. Chronic illness.
B. Good sleep.
C. Improved memory.
D. Reduced physical illness.

Correct answer: A

Rationale: Sleep apnea causes chronic illness. The passage specifically mentions that sleep apnea can result in chronic insomnia, indicating it can cause long-term health problems. Choices B, C, and D are incorrect as sleep apnea does not lead to good sleep, improved memory, or reduced physical illness.

4. Which of the following is not mentioned as a detail in the passage about High Fructose Corn Syrup?

A. HFCS and sugar share a biological structure.
B. HFCS is cheaper to use than sugar.
C. HFCS is now used to sweeten a variety of products.
D. HFCS contains more calories than aspartame.

Correct answer: D

Rationale: The correct answer is D because the passage does not mention that HFCS contains more calories than aspartame. While the passage discusses the concerns and implications of high fructose corn syrup (HFCS), it does not compare its caloric content to aspartame. Detail A is supported by the passage as both HFCS and sugar share a biological structure. Detail B is also mentioned in the passage, stating that HFCS is cheaper to use than sugar. Detail C is supported by the text, which mentions that HFCS is now used to sweeten a variety of products. However, detail D is never discussed in the passage, making it the correct answer.