what is the meaning of the word diligent as used in the last paragraph about sickle cell anemia

HESI A2

Reading Comprehension Practice Test HESI A2

1. What is the meaning of the word diligent as used in the last paragraph about Sickle-Cell Anemia?

A. Dispersed.
B. Incensed.
C. Painstaking.
D. Demanding.

Correct answer: C

Rationale: In the context of sickle-cell anemia, diligent means painstaking, indicating the careful and thorough approach required to manage the disease. The passage highlights the challenges of managing the symptoms of sickle-cell anemia and the need for meticulous and conscientious care. Choices A, B, and D are incorrect. 'Dispersed' and 'Incensed' do not align with the meaning of diligent in this context. 'Demanding' does not capture the essence of the careful and thorough care needed to manage the disease.

2. Which statement would not be inferred by the reader in the passage about MRSA?

A. Hospitals may soon limit the spread of infection with a new textile.
B. MRSA begins by infecting the skin.
C. You are most likely to contract MRSA in a crowded location.
D. Used clothing stores may harbor MRSA.

Correct answer: D

Rationale: The correct answer is D: 'Used clothing stores may harbor MRSA.' This statement is not supported by the passage. The passage mentions the spread of MRSA in hospitals, gyms, locker rooms, swimming pools, and other settings with frequent human contact, but it does not mention used clothing stores as a common location for MRSA. Therefore, it is an unlikely inference. Choice A is supported by the passage as it discusses the development of a new textile to halt the spread of hospital-associated MRSA. Choice B is also supported as the passage mentions MRSA as a skin infection. Choice C is supported by the passage as it states that MRSA has become ubiquitous in settings with frequent human contact.

3. Which sound waves have a higher pitch?

A. Those waves that are closer together
B. Those waves that are farther apart
C. Those waves that travel a long distance
D. Those waves that travel a short distance

Correct answer: A

Rationale: Sound waves that are closer together have a higher pitch. This is explained by the Doppler Effect, where as a source of sound moves closer to an observer, the waves are compressed, resulting in a higher frequency and a higher pitch. Conversely, when the source moves away, the waves are stretched, leading to a lower frequency and a lower pitch. Therefore, choice A is correct. Choices B, C, and D are incorrect as they do not accurately describe the relationship between sound wave frequency and pitch.

4. What is the meaning of the word supplementation as used in the second paragraph?

A. Extra
B. Organization
C. Attachment
D. Revision

Correct answer: A

Rationale: The term "supplementation" refers to the addition of nutrients to the diet. In the context of the passage, it highlights the need for seniors to receive extra nutrients such as calcium and vitamin D beyond what they typically consume in their diets. This reflects the understanding that seniors may not get sufficient nutrition solely from their regular meals, supporting option A.

5. What is the meaning of the word 'phenomenon' in the second paragraph?

A. Something that is lifeless to the senses
B. Something that is nonchalant
C. Something that is significant but unusual
D. Something that is chemical in origin

Correct answer: C

Rationale: In the context of the second paragraph, 'phenomenon' refers to something significant and unusual, specifically describing the scientific phenomenon known as the Doppler Effect. This effect explains the change in frequency of sound waves when a source of sound and the observer are in relative motion. Choices A, B, and D are incorrect because they do not accurately reflect the meaning of 'phenomenon' in this context. 'Lifeless to the senses,' 'nonchalant,' and 'chemical in origin' do not align with the description of the Doppler Effect, which is a notable and uncommon scientific occurrence.