The largest organ in the human body is the

Correct Answer: C

Rationale: The correct answer is C: Skin. The skin is the largest organ in the human body, covering an average of about 20 square feet. It serves as a protective barrier against external threats, regulates body temperature, and plays a role in sensation. The heart (A), lungs (B), and kidneys (D) are vital organs but do not surpass the skin in terms of size or surface area. Therefore, the skin is the correct choice for the largest organ in the human body.

Correct Answer: D

Rationale: The correct answer is D. A prosthesis is an artificial body part designed to replace a missing limb. In this case, an artificial arm serves as a replacement for a lost arm. It is a functional and anatomically designed device that helps restore lost function. A) An assistive device for dressing (Choice A) does not involve replacing a missing limb and is not considered a prosthesis. B) Handrolls to prevent finger curling (Choice B) are not artificial limbs and do not replace a missing limb. C) Special shoes for flat feet (Choice C) are not artificial limbs and do not replace a missing limb.

Correct Answer: A

Rationale: The correct answer is A: Only talking about one subject at a time. This strategy is effective for residents with Alzheimer's disease (AD) as it helps reduce confusion and cognitive overload. By focusing on one topic, it enhances comprehension and engagement. Choice B is incorrect as repeating instructions is beneficial for memory retention in AD patients. Choice C is incorrect as nonverbal cues such as gestures and facial expressions can aid communication for individuals with AD. Choice D is incorrect as using negative language like "don't" may lead to resistance or agitation in AD residents.

Correct Answer: B

Rationale: The correct answer is B: Nonspecific immunity. Nonspecific immunity is the first line of defense against invading pathogens and does not target specific pathogens. It includes physical barriers like skin, mucous membranes, and chemical barriers like stomach acid and enzymes. Specific immunity (choice A) refers to the immune response targeted against specific pathogens. Active immunity (choice C) is immunity acquired through exposure to a pathogen or vaccine, leading to the production of antibodies. Passive immunity (choice D) is acquired through transfer of antibodies from another individual, providing immediate but temporary protection. Nonspecific immunity is the initial defense mechanism that protects the body from a wide range of pathogens before specific immunity is activated.

Correct Answer: A

Rationale: The correct answer is A. A nursing assistant should not get the unit or electrodes wet when caring for a resident with a telemetry pack to prevent damage to the equipment and ensure accurate monitoring of the resident's heart activity. Wet electrodes can interfere with the transmission of signals and lead to inaccurate readings. It is important to maintain the integrity of the equipment to provide proper care for the resident. Choices B, C, and D are incorrect. Choice B is incorrect because monitoring vital signs is an essential part of caring for a resident with a telemetry pack. Choice C is incorrect because cracked skin is not normal and should be reported to prevent skin irritation or infection. Choice D is incorrect because the electrodes should be securely attached to the resident's chest to ensure accurate readings, not hanging loosely.