Subnormal core body temperature

Correct Answer: B

Rationale: The correct answer is B: Hypothermia. Subnormal core body temperature indicates the body temperature is below normal range, which is characteristic of hypothermia. Hyperthermia refers to elevated body temperature, making choice A incorrect. Choices C and D are likely not provided as they do not directly relate to the concept of body temperature.

Correct Answer: B

Rationale: The correct answer is B: Intact skin. Intact skin acts as the first defense against infection by forming a physical barrier that prevents pathogens from entering the body. It is composed of multiple layers, including the epidermis and dermis, which provide protection against microbes. Skin also produces antimicrobial substances and has immune cells that can defend against pathogens. A: Skin is not specific enough, as damaged skin may not provide effective protection. C and D are incomplete answers and do not accurately describe the primary role of intact skin in defending against infections.

Correct Answer: B

Rationale: The correct answer is B because a vesicle is a small fluid-filled blister on the skin. Vesicles are commonly caused by friction, burns, or insect bites, resulting in fluid accumulation beneath the skin. Pus is typically associated with larger, infected lesions such as pustules, not vesicles. Choice C and D are likely incorrect as they do not provide relevant information or support for the appearance of a vesicle on the leg.

Correct Answer: B

Rationale: The correct answer is B: Universal Serial Bus. USB is a common interface used to connect devices to a computer. Nursing informatics often involves using various devices that connect via USB. Choice A, Updated System Binary, is incorrect as it does not accurately describe USB. Choices C and D are blank options, making them obviously incorrect. In summary, USB stands for Universal Serial Bus, a widely used interface in nursing informatics for connecting devices to computers.

Correct Answer: A

Rationale: The correct answer is A because in a warm environment, the body needs to cool itself to maintain a stable internal temperature. This process is called thermoregulation. Sweating and vasodilation are mechanisms the body uses to release heat and cool down. Choice B is incorrect as the body does not need to warm itself in a warm environment. Choices C and D are incomplete and do not offer a logical explanation related to the situation given.