Which is the best description of homeostasis?

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Question 1 of 5

Which is the best description of homeostasis?

Correct Answer: A

Rationale: Homeostasis is the body's dynamic balance adjusting to changes like temperature or blood sugar, per physiology texts. Disturbed equilibrium disrupts it, not defines it. Stressor reaction is a process, not the state. Static condition contradicts its adaptability. Constant adjustment (e.g., sweating to cool) maintains stability, a concept LPNs monitor (e.g., vitals), making this the correct and most accurate description.

Question 2 of 5

After same-day surgery, the patient is ready to go home when:

Correct Answer: B

Rationale: Discharge post-same-day surgery requires stability. Alertness, ambulation, and bladder emptying confirm recovery per ambulatory surgery guidelines ensuring safety home. A driver is logistical, not readiness. Pain control and nausea resolution are partial. Full function (mental, motor, urinary) is the standard, an LPN discharge check, making it the correct criterion.

Question 3 of 5

To promote wound healing, you instruct the patient to eat foods high in protein. Which choice warrants further teaching?

Correct Answer: A

Rationale: Protein aids wound healing (collagen synthesis). Caesar salad with bread lacks significant protein, per nutrition guidelines, needing reteaching. Tuna (Choice B), cheese (Choice C), and chicken provide protein (10-20g/serving). Salad's low protein (lettuce, dressing) fails healing needs, an LPN dietary focus, making it the correct choice for further instruction.

Question 4 of 5

During an assessment, you note fever, fatigue, weakness, cold and clammy skin, nausea, vomiting, and diarrhea. The body is fighting infection by:

Correct Answer: B

Rationale: These signs fever, clammy skin, nausea reflect inflammation (Choice B), the body's initial infection fight, per pathophysiology. Antigen-antibody is specific immunity, later. Interferon targets viruses. Acquired immunity develops over time. Inflammation vasodilation, cytokine release causes symptoms, an LPN observation, making it the correct response.

Question 5 of 5

Which intervention would you implement for a patient with active pulmonary TB who is socially isolated due to airborne precautions?

Correct Answer: B

Rationale: Isolation causes loneliness. Suggesting email/phone contact maintains social ties safely, per holistic care, easing isolation. Limiting visitors restricts further. NA presence isn't feasible long-term. Rationale educates but doesn't connect. Alternative contact balances safety and well-being, an LPN intervention, making it the correct choice.

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