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Nursing Elites

ATI TEAS 7

physics

1. What is the term for the phenomenon when two waves combine to form a new wave?

Correct answer: b

Rationale: Interference occurs when two waves meet and their amplitudes combine, resulting in a new wave.

2. A medication dosage is listed as 1/4 gram. What is the equivalent dosage in milligrams (1 gram = 1000 milligrams)?

Correct answer: D

Rationale: Multiply the gram dosage (1/4) by the conversion factor (1000mg/gram) to get 250 milligrams.

3. Which of the following hormones helps regulate blood pressure by affecting kidney function?

Correct answer: C

Rationale: The correct answer is C: Renin. Renin is an enzyme produced by the kidneys that plays a crucial role in regulating blood pressure. Renin helps control blood pressure by initiating a series of reactions that ultimately lead to the production of angiotensin, a hormone that constricts blood vessels and increases blood pressure. Insulin is a hormone that regulates blood sugar levels, not blood pressure. Testosterone and estrogen are sex hormones that do not have a direct impact on kidney function or blood pressure regulation. Therefore, the correct hormone that helps regulate blood pressure by affecting kidney function is Renin.

4. Which of the following is an example of an aromatic hydrocarbon?

Correct answer: B

Rationale: Benzene is an example of an aromatic hydrocarbon. The other choices are aliphatic hydrocarbons.

5. The deeper layer of the skin, containing connective tissue, blood vessels, and nerve endings, is called the:

Correct answer: B

Rationale: The correct answer is B: Dermis. The dermis is the deeper layer of the skin that contains important structures such as connective tissue, blood vessels, and nerve endings. It plays a crucial role in providing support and nourishment to the epidermis, the outermost layer of the skin. The epidermis, option A, is actually the outermost layer responsible for protecting the body from environmental factors. The hypodermis, option C, is the deepest layer of the skin that primarily consists of fat and connective tissue. Stratum corneum, option D, is the outermost layer of the epidermis composed of dead skin cells. Therefore, the dermis is the correct answer in this case.

6. The kidneys are bean-shaped organs that perform several vital functions. Which of the following is NOT a primary function of the kidneys?

Correct answer: C

Rationale: The correct answer is C. While the kidneys perform multiple vital functions, such as filtering waste products from the blood, regulating blood pressure, and maintaining water balance in the body, they do not produce red blood cells. Red blood cell production occurs in the bone marrow, specifically in the spongy tissue called the red bone marrow. Therefore, the kidneys' primary functions do not include producing red blood cells.

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