Data detectable by an observer

Correct Answer: B

Rationale: The correct answer is B: Objective data. Objective data refers to factual information that is observable and measurable by anyone, regardless of personal biases or interpretations. This type of data is concrete and can be verified through various means, making it reliable and consistent. In contrast, subjective data (choice A) is influenced by individual perspectives, feelings, and opinions, making it less reliable and more prone to bias. Choices C and D are likely left blank as they do not align with the concept of data detectable by an observer.

Correct Answer: A

Rationale: The presence of fluid in a bulla on the leg indicates a blister, commonly caused by friction or burns. The fluid acts as a protective cushion for the underlying skin. Pus, on the other hand, is a sign of infection and inflammation, not typically found in a bulla. Therefore, option A is correct as it aligns with the typical presentation and pathophysiology of a bulla. Options B, C, and D are incorrect as pus is not a characteristic feature of a bulla and the other choices are incomplete or irrelevant.

Correct Answer: B

Rationale: The correct answer is B, Prevention of bedsores. Maintaining skin integrity is crucial to prevent pressure ulcers (bedsores). Pressure ulcers develop when there is prolonged pressure on the skin, leading to tissue damage. Preventing bedsores involves frequent repositioning, using supportive surfaces, and keeping the skin clean and dry. Avoiding infection (choice A) is important but is just one aspect of maintaining skin integrity. Choice C and D are incomplete, making them incorrect options. In summary, preventing bedsores directly aligns with the primary goal of maintaining skin integrity by ensuring the skin remains healthy and intact.

Correct Answer: B

Rationale: The correct answer is B: Knock. Before entering a patient's room, it is crucial to knock to respect the patient's privacy and give them a chance to prepare for your entry. This action demonstrates courtesy, professionalism, and consideration for the patient's personal space. It also helps prevent any potential embarrassment or discomfort for the patient. Choice A (Greet) should come after knocking to establish communication. Choice C (Twist the knob) is incorrect as it is a physical action that should be done after knocking to open the door. Choice D is incomplete.

Correct Answer: B

Rationale: Surface temperature gets cold when the surrounding gets cold because heat naturally flows from warmer areas to cooler areas until thermal equilibrium is reached. When the surrounding temperature decreases, it causes the heat to transfer away from the surface, leading to a decrease in surface temperature. This process follows the fundamental principle of heat transfer known as the second law of thermodynamics. The other choices are incorrect because they do not align with the basic principles of heat transfer and thermodynamics. Choice A, stating that surface temperature gets cold when the environment gets hot, goes against the natural flow of heat. Choice C and D are incomplete and do not provide any logical explanation.