Which term refers to the surgical removal of an organ's contents?

Correct Answer: C

Rationale: The correct answer is C, 'Evisceration.' Evisceration specifically refers to the surgical removal of an organ's contents, for example, the removal of abdominal contents during certain surgical procedures. Vivisection (A) involves performing experiments on live animals, amputation (B) is the removal of a limb, and augmentation (D) is the process of increasing the size, value, or quality of something. Therefore, in the context of surgical procedures, evisceration best fits the description of removing an organ's contents.

Correct Answer: A

Rationale: The abbreviation PDR stands for Physician's Desk Reference, which is a widely used book containing information about prescription drugs, including their uses, side effects, and dosages. Therefore, the abbreviation PDR is associated with drugs. Choices B, C, and D are incorrect because PDR specifically relates to drugs and not procedures, books, or muscle groups.

Correct Answer: C

Rationale: In the context of the sentence, the word 'placebo' refers to a substance or treatment that resembles a real medical treatment but has no therapeutic effect. It is used as a standard against which the effects of the experimental drug are compared. A placebo is typically included in a control group in medical research to evaluate the actual effects of the experimental drug. Therefore, in this scenario, the placebo serves as a control to gauge the effectiveness of the experimental drug, making choice C the correct answer. Choices A, B, and D are incorrect because a placebo is not a fallback, substitute, or curative treatment in this context.

Correct Answer: B

Rationale: A nit is a kind of parasite, specifically the egg of a louse. Nits are typically found attached to hair close to the scalp and are commonly associated with head lice infestations. Choice A, 'abscess,' is incorrect as an abscess is a collection of pus caused by an infection. Choice C, 'bandage,' is incorrect as it is a material used for covering wounds. Choice D, 'infection,' is incorrect as it refers to the invasion and multiplication of microorganisms in body tissues.

Correct Answer: D

Rationale: In this sentence, the word 'waft' is used to describe the movement of dry leaves over the creek in response to the steady breeze. 'Waft' means to float gently through the air. The correct meaning of 'waft' in this context is to float. Choices A, B, and C are incorrect because 'sink' means to go down below the surface of something, 'dive' means to plunge headfirst into water or another substance, and 'wave' means to move one's hand to and fro in greeting or as a signal.