which of the following situations represents work being done on an object
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Nursing Elites

ATI TEAS 7

ati teas 7 science

1. Which of the following situations represents work being done on an object?

Correct answer: C

Rationale: Work is defined as the product of the force applied to an object and the distance over which the force is applied. In the situation of lifting a box to place it on a shelf, work is being done on the object. This is because lifting the box involves applying a force over a distance (the height of the shelf). The force applied to lift the box results in work being done on the object by raising it against the force of gravity. Choices A, B, and D do not involve work being done on the object as they either do not involve movement against a force (A, D) or do not cover distance against a force (B).

2. As a nursing student triaging a patient, which of the following is an example of quantitative data you can gather?

Correct answer: C

Rationale: The corrected choice C, 'The patient's temperature is 101.7°F,' is an example of quantitative data because it provides a specific numerical value that can be measured. Quantitative data involves measurable and numerical information, making it crucial for assessing a patient's condition objectively. Choices A and B are subjective statements based on the patient's perception of pain and its description, which are qualitative data and may vary between individuals. Choice D provides historical information about a fever, which is not a current measurable value and does not constitute quantitative data for immediate assessment.

3. Which layer of the skin is responsible for new skin cell production?

Correct answer: B

Rationale: The correct answer is B, Stratum basale. The stratum basale, also known as the basal layer or stratum germinativum, is the deepest layer of the epidermis and is responsible for new skin cell production through cell division. It contains basal cells that continuously divide to produce new keratinocytes, which move up through the layers of the epidermis. Choice A, Stratum corneum, is the outermost layer of the epidermis consisting of dead cells filled with keratin. It serves a protective function but is not involved in new skin cell production. Choice C, Stratum granulosum, is a layer of the epidermis where keratinocytes undergo changes in their structure and composition. It is involved in the process of keratinization but not in new skin cell production. Choice D, Stratum spinosum, is a layer of the epidermis where cells become interconnected by desmosomes. While it plays a role in providing strength and support to the epidermis, it is not primarily responsible for new skin cell production.

4. Which structure in the digestive system absorbs the most nutrients?

Correct answer: B

Rationale: The small intestine is the primary site where the absorption of nutrients from digested food occurs. Its large surface area, specialized cells, and villi play key roles in maximizing nutrient absorption, making it the structure in the digestive system that absorbs the most nutrients. The stomach's main function is to break down food with acid and enzymes, not absorb nutrients. The large intestine primarily absorbs water and electrolytes, not nutrients. The esophagus is a muscular tube that connects the throat with the stomach and does not play a role in nutrient absorption.

5. Which of the following blood vessels carries oxygenated blood from the lungs back to the left atrium of the heart?

Correct answer: B

Rationale: The correct answer is B: Pulmonary vein. The pulmonary vein carries oxygenated blood from the lungs back to the left atrium of the heart. This oxygenated blood is then pumped out to the rest of the body. The pulmonary artery, choice A, carries deoxygenated blood from the heart to the lungs for oxygenation. The aorta, choice C, is responsible for carrying oxygenated blood from the heart to the body's tissues. Choice D, the inferior vena cava, transports deoxygenated blood from the lower body back to the heart.

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