what is the function of the white blood cells
Logo

Nursing Elites

HESI A2

HESI A2 Anatomy and Physiology Quizlet

1. What is the function of white blood cells?

Correct answer: B

Rationale: White blood cells are a vital part of the immune system. Their primary function is to fight infections by attacking bacteria, viruses, and other pathogens that enter the body. They play a crucial role in protecting the body against illnesses and maintaining overall health. Choice A is incorrect because the role of carrying oxygen to cells is primarily performed by red blood cells. Choice C is incorrect as the transportation of nutrients is mainly carried out by the bloodstream and specialized cells. Choice D is incorrect as the process of clotting blood is primarily mediated by platelets.

2. Convert 1/5 to a decimal.

Correct answer: B

Rationale: To convert a fraction to a decimal, divide the numerator by the denominator. In this case, 1 ÷ 5 = 0.2. Therefore, the correct answer is B. Choice A (0.5) is incorrect because the decimal form of 1/5 is not 0.5. Choice C (1.5) is incorrect as it is the sum of 1 and 0.5, not the decimal form of 1/5. Choice D (0.15) is incorrect as it is the decimal form of 15/100, not 1/5.

3. How many ounces are in 3/4 pints?

Correct answer: A

Rationale: To find the number of ounces in 3/4 pints, we need to know that 1 pint is equal to 16 ounces. Therefore, 3/4 of a pint would be 3/4 * 16 = 12 ounces. The correct answer is 12 ounces because 3/4 pints is equivalent to 12 ounces. Choices B, C, and D are incorrect as they do not accurately calculate the conversion from pints to ounces.

4. The molar mass of some gases is as follows: carbon monoxide—28.01 g/mol; helium—4.00 g/mol; nitrogen—28.01 g/mol; and oxygen—32.00 g/mol. Which would you expect to diffuse most rapidly?

Correct answer: B

Rationale: The rate of diffusion is inversely proportional to the molar mass of the gas. Helium has the lowest molar mass among the given gases, making it the lightest and fastest gas to diffuse. Therefore, helium would be expected to diffuse most rapidly compared to carbon monoxide, nitrogen, and oxygen. Carbon monoxide, nitrogen, and oxygen have higher molar masses than helium, so they would diffuse more slowly. Therefore, the correct answer is helium.

5. Select the meaning of the underlined word in the following sentence. At this point, we are providing mainly palliative care.

Correct answer: C

Rationale: In the context of the sentence, 'palliative care' refers to care that is focused on providing relief from the symptoms and stress of a serious illness. It is not aimed at curing the illness but rather at providing comfort and improving quality of life. Therefore, the meaning of 'palliative' in this context is to soothe or alleviate suffering, making 'soothing' the correct choice. The other options, 'scientific,' 'surgical,' and 'serious,' do not capture the essence of palliative care, which is centered around providing comfort and relief rather than focusing on scientific or surgical interventions or emphasizing seriousness.

Similar Questions

A nurse works in a neonatal unit where infants' weights are measured in grams. What is the equivalent of 1,500 grams in pounds?
_____ are very ancient people.
Subtract 12 - 7 4\5.
What does Distal mean?
What type of reaction involves atoms attempting to achieve stable electron configurations?

Access More Features

HESI A2 Basic
$49/ 30 days

  • 3,000 Questions with answers
  • 30 days access

HESI A2 Premium
$99/ 90 days

  • Actual HESI A2 Questions
  • 3,000 questions with answers
  • 90 days access

Other Courses