A client who has been diagnosed with exercise-induced asthma is prescribed zafirlukast (Accolate). Which of the following adverse effects would the nurse inform the client regarding zafirlukast (Accolate)?
Liver injury
bradycardia
renal failure
Bronchoconstriction
The Correct Answer is A
A) Liver injury: Zafirlukast (Accolate) has been associated with the risk of liver injury. It is important for clients to be informed about this potential adverse effect, as it may require monitoring of liver function tests during treatment. Symptoms of liver injury, such as jaundice, dark urine, or severe fatigue, should prompt clients to seek medical attention.
B) Bradycardia: Bradycardia is not a commonly associated adverse effect of zafirlukast. This medication primarily works as a leukotriene receptor antagonist and does not typically affect heart rate significantly. Clients should be aware of other more relevant side effects rather than bradycardia.
C) Renal failure: Renal failure is not a known adverse effect of zafirlukast. While kidney function should always be monitored in patients taking various medications, zafirlukast specifically does not have a direct association with renal failure.
D) Bronchoconstriction: While bronchoconstriction is a concern in asthma management, zafirlukast is designed to prevent bronchoconstriction by blocking leukotriene receptors. Therefore, it is not an adverse effect of the medication. In fact, its purpose is to help reduce the incidence of bronchoconstriction and improve asthma control.
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Correct Answer is ["A","C","D"]
Explanation
A) Alternative usage includes being the reversal agent for acetaminophen overdoses: Acetylcysteine is indeed used as an antidote for acetaminophen toxicity. It helps replenish glutathione levels in the liver, thus protecting it from damage caused by the overdose. This is a well-established use of the medication.
B) This medication should not be used for clients with productive coughs: This statement is not correct. Acetylcysteine is used to help thin and loosen mucus, making it easier to expel from the lungs. It can be beneficial for clients with productive coughs, as it aids in reducing excessive respiratory secretions.
C) This medication has a foul smell resembling "rotten eggs": Acetylcysteine has a characteristic odor that is often described as similar to rotten eggs due to the presence of sulfur in its chemical structure. This can be an important consideration for patients when administering the medication.
D) This medication can be utilized in clients with cystic fibrosis. This medication falls under the classification of "mucolytic": Acetylcysteine is classified as a mucolytic agent, making it useful for patients with conditions like cystic fibrosis, where thick mucus production is a significant issue. It helps to decrease the viscosity of secretions, facilitating easier clearance.
E) This medication has anticholinergic properties and side effects: This statement is incorrect. Acetylcysteine does not possess anticholinergic properties. Anticholinergic medications typically reduce secretions and are used for different indications, whereas acetylcysteine serves to increase mucus clearance, not decrease it.
Correct Answer is D
Explanation
A. Stimulate alpha-adrenergic receptors, thus producing vascular constriction of capillaries in nasal mucosa: This describes the action of decongestants, not guaifenesin. Guaifenesin does not work by constricting blood vessels; rather, its primary function is to help manage mucus production.
B. Compete with histamine for receptor sites, thus preventing a histamine response and overall congestion: This mechanism is associated with antihistamines, which are used to relieve symptoms of allergic reactions, not with guaifenesin. Guaifenesin does not block histamine but focuses on mucus management.
C. Treat allergic rhinitis and prevent motion sickness: While these are common uses for antihistamines, they do not apply to guaifenesin. Guaifenesin is primarily an expectorant and is not indicated for treating allergic rhinitis or motion sickness.
D. Loosen bronchial secretion to assist in elimination: Guaifenesin acts as an expectorant, promoting the clearance of mucus from the airways by loosening bronchial secretions. This facilitates easier expectoration of mucus, helping to relieve chest congestion associated with upper respiratory infections.