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Nursing Elites

ATI TEAS 7

Anatomy

1. What are the white blood cells responsible for coordinating the immune response called?

Correct answer: C

Rationale: The correct answer is C: "Lymphocytes." Lymphocytes are a type of white blood cell that plays a crucial role in coordinating the immune response. There are two main types of lymphocytes: B cells, which produce antibodies to target pathogens, and T cells, which directly attack infected cells. Neutrophils (option D) are another type of white blood cell involved in the immune response by engulfing and destroying pathogens. Red blood cells (option A) are responsible for carrying oxygen to body tissues, while platelets (option B) are involved in blood clotting. Therefore, lymphocytes are specifically responsible for coordinating the immune response, making them the correct answer to this question.

2. Ectopic pregnancy is a serious condition that occurs when a fertilized egg implants outside the uterus. What is the most common location for an ectopic pregnancy?

Correct answer: B

Rationale: The correct answer is B: Fallopian tube. The fallopian tube is the most common location for an ectopic pregnancy to occur. This is because the fertilized egg typically gets stuck or implants in the fallopian tube instead of traveling to the uterus for normal implantation. If left untreated, an ectopic pregnancy in the fallopian tube can lead to serious complications such as tubal rupture and internal bleeding. The other options (ovary, cervix, vagina) are not typical sites for implantation of a fertilized egg and are less likely to result in an ectopic pregnancy.

3. Which property of matter explains why ice floats on water?

Correct answer: c

Rationale: Buoyancy is the upward force exerted by a fluid (like water) on an object immersed in it. Ice floats on water because it is less dense than water, experiencing an upward force (buoyancy) greater than its weight.

4. When choosing a color palette for a presentation, it's best to:

Correct answer: C

Rationale: While both branding consistency and minimalism have their place, presentations benefit from utilizing complementary colors for visual interest and clarity.

5. Which type of muscle tissue contracts involuntarily and is found in organs like the heart and intestines?

Correct answer: C

Rationale: The correct answer is C: Smooth muscle. Smooth muscle tissue contracts involuntarily and is found in organs like the heart and intestines. Skeletal muscle is responsible for voluntary movements, and cardiac muscle is specific to the heart. Therefore, smooth muscle is the only type of muscle tissue that fits the description provided in the question, making it the correct choice. Option D, 'All of the above,' is incorrect as it includes skeletal and cardiac muscles, which do not fit the criteria of being found in organs like the heart and intestines. Understanding the differences between these types of muscle tissue is crucial for comprehending their specific functions in the body.

6. A nurse needs to dilute 2 milliliters of a concentrated medication with 8 milliliters of sterile water. What is the final concentration of the solution in percent?

Correct answer: B

Rationale: Calculate the total volume of the solution (2 ml + 8 ml = 10 ml). Then, divide the volume of the concentrated medication by the total volume and multiply by 100%: (2 ml / 10 ml) * 100% = 20%.

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