HESI A2 Vocabulary 2024

Correct Answer: C

Rationale: The correct answer is C: twice daily. BID stands for "bis in die" in Latin, which means "twice a day" in English. When a medication is prescribed BID, it should be taken at evenly spaced intervals approximately 12 hours apart. This dosing schedule ensures a consistent level of the medication in the patient's system for optimal effectiveness. Explanation for why the other choices are incorrect: A: "as needed" (PRN) means the medication is taken only when required, not at specific intervals like BID. B: "every two hours" indicates a different dosing frequency than BID and would result in more frequent administration. D: "with food" refers to instructions on how to take the medication, not the dosing frequency.

Correct Answer: C

Rationale: Step 1: In a research study, a placebo is an inactive substance given to participants to compare the effects of the active treatment. Step 2: The purpose of a placebo is to serve as a control group for comparison with the group receiving the experimental drug. Step 3: Therefore, the meaning of 'placebo' in the sentence is 'control' as it is used for comparison purposes. Step 4: Choice A (Fallback) and D (Curative) do not accurately describe the role of a placebo in this context. Step 5: Choice B (Substitute) is not the best fit as the placebo is not substituting the actual treatment, but rather serving as a comparison point. Summary: The correct answer is C (Control) because a placebo is used as a comparison group in research studies, not as a fallback, substitute, or curative treatment.

Correct Answer: B

Rationale: The correct answer is B: Diseased. In the context of the sentence, 'affected' refers to an area that is experiencing a medical condition or ailment. By applying cream to this area, it suggests that the area is suffering from some form of disease or health issue. 'Involved' (A) implies being part of something, 'Assumed' (C) means to believe something to be true without evidence, and 'Perceived' (D) refers to how something is seen or understood, none of which fit the context of the sentence.

Correct Answer: B

Rationale: Step 1: Identify the cranial bone that fits the blank. Step 2: Recall that the bone forming the top and sides of the skull is the parietal bone. Step 3: Understanding that the parietal bone is a cranial bone reinforces choice B as the correct answer. Summary: Choice A is incorrect as the partial bone does not exist in the cranial structure. Choice C, pariah, is unrelated to cranial anatomy. Choice D, parhelion, is not a cranial bone but a term referring to a bright spot beside the sun.

Correct Answer: D

Rationale: The correct answer is D: Emotional behavior. Histrionics refers to overly dramatic or theatrical behavior, often exaggerated and insincere. This aligns with the definition of emotional behavior. Option A, accomplishments, is unrelated. Option B, daring acts, does not capture the emotional aspect of histrionics. Option C, examinations, is completely unrelated to the meaning of histrionics. Therefore, D is the most appropriate choice.