Correct Answer: B

Rationale: The correct safety measure that the nurse should emphasize is to keep oxygen tanks upright and away from heat sources. This is crucial to prevent the risk of fire or explosion. Choice A is incorrect as smoking near oxygen can lead to a fire hazard. Choice C is also incorrect as storing oxygen tanks in enclosed spaces can be dangerous. Choice D, although related to safety, does not address the immediate risk of keeping oxygen tanks away from heat sources.

Correct Answer: D

Rationale: The correct answer is 'Muscle weakness.' Hypokalemia is characterized by low potassium levels, which can lead to muscle weakness due to impaired muscle function. Choices A, B, and C are incorrect findings associated with other medical conditions and not typically expected in hypokalemia. Muscle stiffness is more commonly associated with conditions like tetany or muscle cramps, bradycardia is more commonly associated with issues like heart block or hypothyroidism, and hyperreflexia is more commonly seen in conditions like hyperthyroidism or spinal cord injuries.

Correct Answer: B

Rationale: The correct answer is B: 'Wear shoes that fit properly.' In peripheral arterial disease (PAD), it is crucial to wear shoes that fit well to prevent foot injuries. Choice A is incorrect because applying lotion between the toes can increase the risk of infection. Choice C is incorrect since walking barefoot at home can lead to injuries, especially in individuals with PAD. Choice D is incorrect as applying ice to the feet daily can further reduce blood flow to the extremities, worsening the condition in PAD.

Correct Answer: A

Rationale: The correct nursing interventions for a patient with hypertension involve monitoring blood pressure and educating the patient about lifestyle changes. These interventions help in managing hypertension by keeping track of the patient's blood pressure readings and empowering them with knowledge to make lifestyle modifications such as adopting a healthy diet, regular exercise, stress management, and avoiding smoking and excessive alcohol consumption. Administering antihypertensive medications (choice B) is typically done by a healthcare provider rather than a nurse. While regular monitoring of blood pressure (choice C) is important, administering diuretics is a specific medical intervention that should be prescribed by a healthcare provider. Monitoring blood glucose (choice D) is more relevant for patients with diabetes rather than hypertension.

Correct Answer: D

Rationale: The correct answer is to investigate for signs of infection when caring for a client diagnosed with delirium. Infections can frequently cause or worsen delirium. While investigating medication history, sensory deficits, and cognitive functioning may be important in the overall care of the client, when prioritizing, the nurse should first rule out or address potential infections due to their significant impact on delirium.