A client asks the nurse if it is safe to take a glucosamine supplement. The nurse should assess for which of the following potential contraindications?

Choice A reason: Glucosamine supplements are often derived from shellfish. Clients with shellfish allergies may experience allergic reactions when taking glucosamine. Therefore, assessing for shellfish allergy is essential before recommending or approving glucosamine use. Choice B reason: A history of smoking is not a contraindication for glucosamine. While smoking has negative health effects, it does not interact with glucosamine supplementation. Choice C reason: Cardiac dysrhythmias are not directly affected by glucosamine. There is no evidence that glucosamine worsens or triggers arrhythmias. Choice D reason: Malignant hyperthermia is a genetic condition triggered by certain anesthetics, not by glucosamine supplementation. This is not a contraindication.