A nurse is reviewing the medical history of a client who asks about the use of warfarin.
The nurse should identify which of the following findings as a contraindication for the administration of this medication?

Choice A rationale:

Lavender oil is commonly used in aromatherapy and is known for its calming effects. However, it can trigger respiratory issues in individuals with asthma. Asthma is a chronic condition characterized by airway inflammation and bronchoconstriction, which can be exacerbated by inhaling certain substances, including strong odors and essential oils. Lavender oil, when inhaled, can potentially irritate the airways and worsen asthma symptoms. Therefore, a history of asthma is a contraindication for using lavender oil.

Choice B rationale:

Furosemide is a diuretic commonly used to treat fluid retention (edema) and hypertension. It works by increasing urine production and removing excess fluid from the body. Furosemide does not interact with lavender oil directly, and there is no known contraindication between these two substances.

Choice C rationale:

Alcohol use disorder is a condition characterized by an inability to control or stop alcohol consumption despite negative consequences. While alcohol abuse can have various health implications, it does not specifically interact with lavender oil in a way that constitutes a contraindication.

Choice D rationale:

Vitamin C is a water-soluble vitamin that plays a crucial role in various bodily functions, including immune system support and collagen synthesis. There is no evidence to suggest that taking vitamin C daily contraindicates the use of lavender oil. These two substances do not interact in a way that poses a risk to the individual.

The correct answer isChoice C.

Choice A rationale:

Encouraging the client to drink low-protein supplements is not the best action. Protein is essential for tissue repair and healing, especially when the body is under stress, such as during radiation therapy. Therefore, it would be more beneficial to encourage high-protein foods and supplements.

Choice B rationale:

Serving the client’s largest meal in the evening is not the most effective strategy. Radiation therapy can cause nausea and vomiting, which are often worse later in the day. Therefore, it might be more beneficial to serve a larger meal earlier in the day when the client is more likely to tolerate it.

Choice C rationale:

Providing the client with cold foods rather than hot foods is the correct action. Hot foods can often exacerbate feelings of nausea, which are common side effects of radiation therapy.Cold foods are generally better tolerated.

Choice D rationale:

Telling the client to drink two glasses of water with meals is not the best advice. While hydration is important, drinking large amounts of fluid with meals can contribute to early satiety, which can further decrease the client’s food intake. It might be more beneficial to encourage the client to drink fluids between meals.