Which of the following is a function of the integumentary system?

Correct Answer: B

Rationale: The correct answer is B: Prevents the loss of too much water. The integumentary system consists of the skin, hair, nails, and glands, which act as a barrier to prevent dehydration by retaining body fluids. It helps regulate body temperature, protects against pathogens, and provides sensory information. Choices A, C, and D do not directly relate to the primary function of the integumentary system, making them incorrect. A regulates hormones (endocrine system), C relates to the muscular system, and D involves the reproductive system.

Correct Answer: A

Rationale: The correct answer is A: Dry. Before applying a prosthesis, the area must be dry to ensure proper adhesion. Moisture can prevent the prosthesis from adhering effectively, leading to potential issues such as slippage or skin irritation. Options B, C, and D are incorrect because a damp, cold, or warm area can all contribute to poor adhesion and discomfort for the patient. Ensuring the area is dry is crucial for the successful application and longevity of the prosthesis.

Correct Answer: B

Rationale: The correct answer is B because using touch and smiles can help communicate non-verbally with a resident who has lost verbal skills due to Alzheimer's disease. Touch and smiles can convey empathy, comfort, and support, making the resident feel understood and cared for. This approach maintains a connection with the resident and can alleviate feelings of frustration or isolation. A: Assuming the resident cannot understand is incorrect as it may lead to neglecting their emotional needs. C: Asking the resident questions may cause confusion or frustration if they cannot respond verbally. D: Not involving the resident in activities can worsen feelings of isolation and decrease their quality of life.

Correct Answer: C

Rationale: The correct answer is C: Protects against the invasion of foreign substances and pathogens. The immune system functions to identify and eliminate harmful foreign substances like bacteria, viruses, and other pathogens to protect the body from infections and diseases. It does so through a complex network of cells, tissues, and organs that work together to recognize and neutralize these threats. Choices A, B, and D are incorrect because maintaining blood sugar levels is primarily regulated by the endocrine system, hormone production is regulated by the endocrine system, and body temperature regulation is controlled by the thermoregulatory system, respectively.

Correct Answer: B

Rationale: The correct answer is B: To keep the airway open for the lungs to perform air exchange. An artificial airway is used to maintain a clear passage for air to enter the lungs when a person is unable to do so independently. This helps prevent respiratory distress and ensures proper oxygenation. Choices A, C, and D are incorrect because feeding a resident, checking vital signs, or preparing for a medical test are not primary functions of an artificial airway.