HESI A2
HESI A2 Biology 2024
1. Two organisms live in a relationship from which both benefit. What is this called?
- A. Mutualism
- B. Parasitism
- C. Commensalism
- D. Competition
Correct answer: A
Rationale: Mutualism is a type of symbiotic relationship between two organisms in which both parties benefit from the association. It is a mutually beneficial interaction where both organisms gain something valuable, such as food, protection, or some other resource. This contrasts with parasitism, where one organism benefits at the expense of the other, commensalism, where one organism benefits while the other is unaffected, and competition, where both organisms are negatively affected by their interaction.
2. Which sentence uses 'etc.' grammatically correct?
- A. The list included diseases such as flu, measles, etc.
- B. The list included flu, measles, etc., and other items.
- C. The list included flu, measles, etc., diseases, and other items.
- D. The list included, flu, etc., measles, diseases, and other items.
Correct answer: A
Rationale: The correct usage of 'etc.' should follow a comma when concluding a list. Option A correctly places 'etc.' at the end of a logical list with a comma before it, following grammatical rules. In option B, a comma should be placed after 'etc.' before introducing 'and other items.' Options C and D either misplace commas or incorrectly use 'etc.' within the list.
3. A nurse is reviewing the daily intake and output (I&O) of a patient consuming a clear diet. The urinary drainage bag denotes a total of 1,000 mL for the past 24 hours. The total intake is 2 8-oz cups of coffee, 1 16-oz serving of clear soup, and 1 pint of water. How much is the deficit in milliliters?
- A. 440 mL
- B. 540 mL
- C. 660 mL
- D. 760 mL
Correct answer: A
Rationale: 2 8-oz cups of coffee = 16 oz = 16 × 30 = 480 mL. 1 16-oz serving of clear soup = 16 × 30 = 480 mL. 1 pint of water = 16 oz = 480 mL. Total intake = 480 + 480 + 480 = 1,440 mL. Deficit = 1,440 mL (intake) - 1,000 mL (output) = 440 mL. Therefore, the deficit in milliliters is 440 mL. The correct answer is A. Choice B, 540 mL, is incorrect as it miscalculates the total intake. Choice C, 660 mL, is incorrect as it does not accurately subtract the output from the intake. Choice D, 760 mL, is incorrect as it overestimates the deficit by not considering the correct total intake and output values.
4. What does 'internal' mean?
- A. Near the surface of the body
- B. Located within the body
- C. Outside the body
- D. Far from the body
Correct answer: B
Rationale: Internal means located within the body. When something is described as internal, it refers to being inside the body or contained within the boundaries of an organism. Choices A, C, and D are incorrect as they describe locations that are either near the surface, outside, or far from the body, respectively, which are not the meanings of 'internal.'
5. To censure something is to __________.
- A. inspect it
- B. denounce it
- C. admire it
- D. overlook it
Correct answer: B
Rationale: To censure something means to criticize or express strong disapproval of it. When something is censured, it is condemned or denounced for its actions or behavior. 'Inspect it' (Choice A) means to examine closely, 'admire it' (Choice C) means to regard with respect or warm approval, and 'overlook it' (Choice D) means to fail to notice or consider something. These choices do not align with the meaning of censure, making 'denounce it' (Choice B) the correct answer.
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