A nurse is reviewing the medical history of a client who has osteoarthritis. The client asks the nurse about taking the supplement chondroitin with glucosamine. The nurse should instruct the client to use this supplement with caution because of which of the following findings in the client's history?

Choice A rationale:

The client's ABG values show a pH of 7.48, PCO2 of 30 mm Hg, HCO3 of 24 mEq/L, and PaO2 of 85 mm Hg. The elevated pH and decreased PCO2 (respiratory component) suggest respiratory alkalosis. Respiratory alkalosis occurs when there is excessive ventilation, leading to a decrease in carbon dioxide levels (hypocapnia) and subsequent alkalosis.

Choice B rationale:

Respiratory acidosis is characterized by an elevated PCO2 and decreased pH. In this case, the client's PCO2 is decreased, indicating respiratory alkalosis rather than respiratory acidosis.

Choice C rationale:

Metabolic alkalosis is characterized by an elevated HCO3 (bicarbonate) level and an increased pH. The client's HCO3 level is within the normal range, making metabolic alkalosis an incorrect identification.

Choice D rationale:

Metabolic acidosis is characterized by a decreased HCO3 level and a decreased pH. The client's HCO3 level is within the normal range, ruling out metabolic acidosis as the acid-base imbalance in this case.

Choice A rationale:

The nurse should not advise the client with multiple sclerosis to schedule all physical activities for the morning hours. While some individuals with multiple sclerosis may experience increased fatigue later in the day, the best approach is to encourage the client to schedule activities at times when they feel the most energetic and to balance physical activity with rest throughout the day.

Choice B rationale:

Monitoring blood pressure is essential while taking fingolimod, a medication used to treat multiple sclerosis, as it can cause a transient decrease in heart rate and blood pressure.

Therefore, the nurse should include this statement in the teaching to ensure the client's safety and early detection of any issues.

Choice C rationale:

This is the correct statement to include in the teaching. Clients with multiple sclerosis should avoid rigorous activities that increase body temperature, as this can worsen their symptoms due to the sensitivity of demyelinated nerves to heat. Activities such as hot baths or engaging in strenuous exercise in hot weather should be avoided.

Choice D rationale:

Corticosteroids are not typically used as a long-term treatment for multiple sclerosis. Instead, they are used for short courses during exacerbations to reduce inflammation and manage acute symptoms. Long-term use of corticosteroids can lead to significant adverse effects, so the nurse should not include this statement in the teaching.