a child complains of heavy breathing even when relaxing they are an otherwise healthy child with no history of respiratory problems what might be the
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ATI TEAS 7

ATI TEAS Science Practice Test

1. A child complains of heavy breathing even when relaxing. They are an otherwise healthy child with no history of respiratory problems. What might be the issue?

Correct answer: C

Rationale: In this scenario, where a child complains of heavy breathing even when relaxing and has no history of respiratory problems, the most likely issue is hyperventilation. Hyperventilation is an abnormal breathing pattern where a person breathes in excess of the body's requirements. It can be triggered by stress, anxiety, panic attacks, or lower-than-normal carbon dioxide levels in the blood. Unlike asthma, a blood clot, or exercising too hard, hyperventilation fits the symptoms described and is more common in individuals without a history of respiratory problems.

2. Why is an extensive network of blood vessels necessary to supply the endocrine glands?

Correct answer: B

Rationale: The correct answer is B. Endocrine glands release hormones directly into the blood, which is why they require a rich blood supply to ensure effective hormone distribution throughout the body. The extensive network of blood vessels allows hormones to be quickly transported to target tissues and organs, regulating various physiological functions. Choices A, C, and D are incorrect because endocrine glands do not filter waste from the blood or the glands themselves. They release hormones into the bloodstream to regulate bodily functions, making a direct connection to the blood supply crucial for their function.

3. What is the name of the outermost layer of the skin?

Correct answer: B

Rationale: The correct answer is B: Epidermis. The epidermis is the outermost layer of the skin, providing a protective barrier against external factors. The dermis is situated beneath the epidermis and contains structures like blood vessels and hair follicles. Subcutaneous tissue, also known as the hypodermis, lies below the dermis and consists mainly of fat tissue, serving functions such as insulation and energy storage. Therefore, choices A, C, and D are incorrect as they do not represent the outermost layer of the skin.

4. What type of vessel carries oxygen-rich blood from the heart to other tissues of the body?

Correct answer: D

Rationale: The correct answer is D: Arteries. Arteries are blood vessels that carry oxygen-rich blood away from the heart to supply oxygen to the tissues and organs throughout the body. Veins, choice A, carry oxygen-poor blood back to the heart, not oxygen-rich blood. Intestines, choice B, are part of the digestive system and do not play a role in carrying blood. Bronchioles, choice C, are small air passages in the lungs responsible for carrying air, not blood.

5. What is the temperature of 35°C in Kelvin?

Correct answer: C

Rationale: To convert Celsius to Kelvin, add 273.15 to the Celsius temperature. In this case, 35°C + 273.15 = 308.15 K. Therefore, the correct answer is 308 K. Choice A (220) is incorrect as it does not account for adding 273.15 to convert to Kelvin. Choice B (238) is incorrect as it is not the result of adding 273.15 to 35°C. Choice D (345) is incorrect as it is not the correct conversion of 35°C to Kelvin.

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