A nurse is caring for a client who has hypertension and asks the nurse about a prescription for propranolol. The nurse should inform the client that this medication is contraindicated in clients who have a history of which of the following conditions?

Choice A reason: Giving the medication in the morning daily is a correct instruction, as it helps to prevent asthma attacks throughout the day and night. Montelukast is a leukotriene receptor antagonist that blocks the inflammatory response and bronchoconstriction caused by leukotrienes. Montelukast has a long duration of action and can be given once a day, preferably in the evening or at bedtime. However, for children who have exercise-induced asthma, the medication can be given in the morning to prevent exercise-induced bronchospasm.

Choice B reason: Administering the granules mixed with 20 oz of water is not a correct instruction, as it may reduce the absorption and effectiveness of the medication. Montelukast granules should be administered within 15 minutes of opening the packet and can be mixed with a small amount of soft food, such as applesauce, mashed carrots, or ice cream. The granules should not be mixed with liquids, such as water, juice, or milk, as they may dissolve and lose their potency.

Choice C reason: Giving the medication at the onset of wheezing is not a correct instruction, as it may not provide immediate relief of the symptoms and may delay the use of a rescue inhaler. Montelukast is not a bronchodilator and does not work quickly to open the airways. Montelukast is a preventive medication that should be taken regularly to reduce the frequency and severity of asthma attacks. The child should use a short-acting beta-agonist, such as albuterol, for the quick relief of wheezing.

Choice D reason: Administering the medication 2 hr before exercise is not a correct instruction, as it may not prevent exercise-induced bronchospasm and may interfere with the daily dosing schedule. Montelukast should be taken once a day, preferably in the evening or at bedtime, to provide consistent protection against asthma triggers. However, for children who have exercise-induced asthma, the medication can be given in the morning to prevent exercise-induced bronchospasm. The child should also use a short-acting beta-agonist before exercise, as needed.

Choice A reason: Black cohosh is an herbal supplement that is used to treat menopausal symptoms, such as hot flashes and mood swings. It does not have a significant interaction with warfarin and does not affect the coagulation status of the client.

Choice B reason: Echinacea is an herbal supplement that is used to boost the immune system and prevent or treat common colds and infections. It does not have a significant interaction with warfarin and does not affect the coagulation status of the client.

Choice C reason: Feverfew is an herbal supplement that is used to treat migraines, arthritis, and fever. It has a significant interaction with warfarin and can increase the risk of bleeding and bruising. It can also reduce the effectiveness of warfarin and alter the client's international normalized ratio (INR).

Choice D reason: Flaxseed is an herbal supplement that is used to lower cholesterol, blood pressure, and inflammation. It does not have a significant interaction with warfarin and does not affect the coagulation status of the client.