How does montelukast (Singulair), a leukotriene blocker, work in the treatment of asthma?
Increased vessel permeability
Reduced bronchoconstriction and mucus secretion
Increased inflammation
Increased bronchoconstriction
The Correct Answer is B
Choice A reason: Montelukast does not increase vessel permeability. It blocks the effects of leukotrienes, which are inflammatory mediators that cause vessel permeability, bronchoconstriction, and mucus secretion. By blocking leukotrienes, montelukast reduces vessel permeability and inflammation.
Choice B reason: Montelukast reduces bronchoconstriction and mucus secretion. It blocks the effects of leukotrienes, which are inflammatory mediators that cause bronchoconstriction and mucus secretion. By blocking leukotrienes, montelukast improves airflow and reduces asthma symptoms.
Choice C reason: Montelukast does not increase inflammation. It blocks the effects of leukotrienes, which are inflammatory mediators that cause inflammation, bronchoconstriction, and mucus secretion. By blocking leukotrienes, montelukast reduces inflammation and prevents asthma exacerbations.
Choice D reason: Montelukast does not increase bronchoconstriction. It blocks the effects of leukotrienes, which are inflammatory mediators that cause bronchoconstriction, mucus secretion, and inflammation. By blocking leukotrienes, montelukast reduces bronchoconstriction and improves airflow.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Potassium is not restricted in the management of high blood pressure. In fact, potassium can help lower blood pressure by balancing the effects of sodium and relaxing the blood vessel walls.
Choice B reason: Magnesium is not restricted in the management of high blood pressure. Magnesium can also help lower blood pressure by regulating the calcium channels and improving the endothelial function.
Choice C reason: Calcium is not restricted in the management of high blood pressure. Calcium can also help lower blood pressure by inhibiting the renin-angiotensin system and reducing the vascular resistance.
Choice D reason: Sodium is restricted in the management of high blood pressure. Sodium can increase blood pressure by retaining water in the body and increasing the blood volume and pressure.
Correct Answer is C
Explanation
Choice A reason: Exudative fluid is not the type of fluid drained from the patient. Exudative fluid is a high-protein fluid that results from inflammation or infection of the pleura. It is usually cloudy and contains white blood cells, bacteria, or blood.
Choice B reason: Purulent fluid is not the type of fluid drained from the patient. Purulent fluid is a thick, yellow-green fluid that results from a bacterial infection of the pleura. It is also known as empyema and contains pus and dead tissue.
Choice C reason: Transudative fluid is the type of fluid drained from the patient. Transudative fluid is a low-protein fluid that results from increased hydrostatic pressure or decreased oncotic pressure in the pleural space. It is usually clear and contains few cells or organisms. It can be caused by conditions such as heart failure, cirrhosis, or nephrotic syndrome.
Choice D reason: Infectious fluid is not the type of fluid drained from the patient. Infectious fluid is a general term that can refer to any fluid that contains microorganisms that cause disease. It can be exudative or purulent, depending on the type and severity of the infection.
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