A characteristic of non-probability sampling is:

Correct Answer: C

Rationale: The correct answer is C because non-probability sampling methods do not ensure that each member of the population has an equal chance of being selected. Non-probability sampling techniques rely on subjective judgment or convenience, leading to certain members having a higher chance of being selected. Option A is incorrect as it describes a characteristic of probability sampling. Option B is incorrect as non-probability sampling methods are not random. Option D is incorrect because non-probability samples may not be representative of the population due to the lack of randomness in selection.

Correct Answer: B

Rationale: The correct answer is B: Autonomy. Autonomy is the ethical principle that upholds an individual's right to make decisions about their own care. In this scenario, the client, who is alert and oriented, has expressed their wish to discontinue the ventilator. Respecting the client's autonomy means honoring their decision, even if it goes against medical advice. Veracity refers to truth-telling, fidelity to keeping promises, and justice to fairness in resource allocation. In this case, the client's autonomy takes precedence over other ethical principles.

Correct Answer: B

Rationale: The correct answer is B because direct percussion involves striking one finger with another fingertip. This technique is commonly used in physical examinations to assess reflexes. Choice A is incorrect as it refers to fingertip striking a surface, not a finger. Choices C and D are blank, but they are incorrect as they do not provide relevant information about direct percussion.

Correct Answer: B

Rationale: The correct answer is B, "Switch off the fuse box first." This is the correct course of action to ensure safety during an electrocution emergency. By switching off the fuse box, the electrical current will be cut off, reducing the risk of further harm to the patient and rescuers. Pulling the patient first (option A) can result in additional injuries to both the patient and the rescuer. It is important to prioritize cutting off the power source before attempting any rescue. Options C and D are not valid choices as they do not provide any effective solution to address the immediate danger of electrocution.

Correct Answer: B

Rationale: The correct answer is B: Middle ear problem. Conductive hearing loss typically results from issues in the middle ear that prevent sound from reaching the inner ear effectively. Common causes include ear infections, fluid buildup, or problems with the ear bones. The inner ear (choice A) is responsible for processing sound signals, not conducting them. Choices C and D are likely left blank as they do not relate to conductive hearing loss.