Within how many feet of oxygen administration is smoking not allowed?

Correct Answer: B

Rationale: The correct answer is B: 12 feet. This distance is established to prevent fires as oxygen supports combustion. Smoking within 12 feet of oxygen administration poses a significant fire hazard. Choice A (4 meters) is incorrect as it is greater than 12 feet. Choices C and D are incorrect as they do not provide a specific distance requirement.

Correct Answer: B

Rationale: The fifth vital sign is pain, which is typically measured using a numerical scale. Walking on thumb tacks causes physical pain, making it an appropriate example of the fifth vital sign. Tasting spicy food does not involve physical pain and is not a vital sign. Therefore, the correct answer is B. Walking on thumb tacks.

Correct Answer: A

Rationale: The correct answer is A: The slower the pulse. As people age, their heart muscles may weaken, causing the heart to pump less efficiently, resulting in a slower pulse rate. This physiological change is a common part of the aging process. Choice B is incorrect as aging typically leads to a decrease, not an increase, in pulse rate. Choices C and D are left blank as they are irrelevant to the question.

Correct Answer: B

Rationale: The correct answer is B (Under tongue) for taking oral temperature. This method is widely used and recommended for its accuracy and convenience. Placing the thermometer under the tongue ensures direct contact with saliva, providing a more accurate reflection of core body temperature. Taking temperature in the gums (A) may not provide as reliable results due to variations in saliva production and positioning. No information is given for choices C and D.

Correct Answer: A

Rationale: The correct answer is A: Make patient tired before sleeping. This is because physical and mental exhaustion can improve sleep quality. By engaging in activities that make the patient tired, such as exercise or mental stimulation, they are more likely to fall asleep faster and have a deeper, more restful sleep. Providing milk, as in choice B, may be relaxing for some individuals, but it is not a guaranteed method to improve sleep comfort. Choice C and D are left blank, as they do not offer any relevant information related to improving sleep comfort.