A nurse is reviewing laboratory results for a client who is taking warfarin. Which of the following laboratory tests determines if the dose of medication is within the recommended target range?

Choice A reason: Adding salt to season foods can irritate oral sores in AIDS patients, often caused by candidiasis or herpes. Salt exacerbates pain and delays healing, making this instruction harmful and inappropriate for managing oral discomfort in this population.
Choice B reason: Rinsing with alcohol-based mouthwash worsens oral soreness, as alcohol irritates mucosal lesions common in AIDS. Non-alcohol, antiseptic, or saline rinses are preferred to promote comfort and healing, making this instruction incorrect and potentially painful.
Choice C reason: Eating hot foods can aggravate oral sores, increasing pain and delaying healing in AIDS patients with mucosal damage. Lukewarm or cool foods are better tolerated, making this instruction inappropriate and counterproductive for managing the client’s symptoms.
Choice D reason: Using ice chips numbs the mouth, reducing pain from oral sores during eating for AIDS patients. This non-invasive, soothing intervention is safe and effective, aligning with comfort-focused care for mucosal lesions, making it the correct instruction.

Choice A reason: Beneficence, acting for patient benefit, is not breached, as both clients receive care and supplies, albeit differently. Unequal distribution reflects access issues, not failure to promote well-being, making beneficence less relevant than justice in addressing this ethical concern.
Choice B reason: Nonmaleficence, avoiding harm, is not violated, as both clients access supplies without direct harm. The inequality in delivery method raises fairness concerns, not harm, making justice the primary ethical principle breached in this scenario of differential treatment.
Choice C reason: Justice, ensuring fair treatment, is breached when one client receives supplies directly and another must seek them externally due to insurance status. This inequality in resource access violates equitable care principles, critical in healthcare ethics to ensure fairness across patient populations.
Choice D reason: Autonomy, respecting patient choices, is not breached, as both clients receive care consistent with their needs. The issue lies in unequal resource access, not decision-making restrictions, making justice the relevant ethical principle over autonomy in this scenario.