The term __________ pertains to the way a person holds and positions his body.

Correct Answer: C

Rationale: The correct answer is C: Posture. Posture refers to the alignment and positioning of the body. It includes how a person holds themselves while sitting, standing, or moving. Pronation (A) is the inward rolling of the foot. Postpartum (B) refers to the period after childbirth. Projection (D) is the act of projecting one's thoughts or feelings onto others. Posture is the only choice that directly relates to how a person holds and positions their body.

Correct Answer: C

Rationale: The correct answer is C: Biology. Biology is the study of all life forms, including their structure, function, growth, origin, evolution, and distribution. Anatomy (A) focuses on the structure of living organisms, while physiology (B) deals with the functions of living organisms. Geology (D) is the study of the Earth's physical structure and substance, not life forms. Therefore, Biology is the correct choice as it encompasses the study of all living organisms and their processes.

Correct Answer: A

Rationale: The correct answer is A because cleaning at least two inches of the catheter near the body helps prevent infection by removing bacteria that can travel up the catheter. Cleaning a larger area reduces the risk of contamination. Choice B is incorrect because rinsing the catheter does not effectively clean it, and focusing on the nearest four inches may not address the area most prone to contamination. Choice C is incorrect because closing and replacing the clamp without cleaning it can introduce bacteria into the catheter system, increasing the risk of infection. Choice D is incorrect because allowing the catheter clamp to touch the graduate can lead to contamination and potential infection.

Correct Answer: C

Rationale: The correct answer is C: Chickenpox in a person who has never had it. The shingles virus, also known as the varicella-zoster virus, is the same virus that causes chickenpox. When a person who has had chickenpox before is re-infected with the virus, it can reactivate and cause shingles. Shingles presents as a painful rash with blisters on the skin along the path of a nerve. Therefore, choice C is correct. Choices A, B, and D are incorrect because shingles is not caused by scabs due to mites, abrasions due to friction, or a severe fungal infection.

Correct Answer: C

Rationale: The correct answer is C: Carbon dioxide. The lungs facilitate the exchange of oxygen and carbon dioxide during respiration. Oxygen is taken in, and carbon dioxide is expelled from the body through breathing. Carbon dioxide is a waste product produced by cells during cellular respiration. Choices A, B, and D are incorrect because nitrogen is not directly involved in the respiratory process, hydrogen is not a major component of respiration, and carbon monoxide is a toxic gas that interferes with oxygen transport in the body.