A client who has chronic bronchial asthma has had a mast cell stabilizer prescribed.
What drug would the provider prescribe?

Choice A.Isoetharine is a bronchodilator that works by relaxing muscles in the airways to improve breathing. It is not a mast cell stabilizer.

Choice B is wrong because aminophylline is a bronchodilator that relaxes the muscles in the airways and is used in the treatment of asthma and chronic obstructive pulmonary disease (COPD). It is not a mast cell stabilizer.

Choice C is wrong becauseIpratropium is an anticholinergic bronchodilator that helps to open up the airways in the lungs. It is used in the treatment of COPD and sometimes asthma, but it is not a mast cell stabilizer.

Choice D. Cromolyn is a mast cell stabilizer that helps prevent the release of substances in the body that cause inflammation and asthma symptoms. It is used for the prevention of asthma attacks and is particularly effective in managing exercise-induced asthma and allergic asthma triggers.

This is because phenothiazines are contraindicated in patients with suspected or established subcortical brain damage. Phenothiazines can cause central nervous system effects such as drowsiness, dizziness, and extrapyramidal symptoms that may worsen the condition of a client with a brain injury.

Choice B is wrong because phenothiazines are not contraindicated in clients with ischemic heart disease.

However, they should be used with caution as they can cause hypotension and cardiac arrhythmias.

Choice C is wrong because phenothiazines are not contraindicated in pediatric clients.

However, they should be used with caution as they can cause sedation, anticholinergic effects, and paradoxical excitement.

Choice D is wrong because phenothiazines are not contraindicated in clients with type 2 diabetes.

However, they should be used with caution as they can cause hyperglycemia and alter the effects of antidiabetic drugs.