If phenobarbital (a weak acid drug) is overdosed, how can we accelerate its excretion?()
A. alkalize urine,increase the degree of dissociation and increase reabsorption in kidney tubules
B. alkalize urine,decrease the degree of dissociation and increase reabsorption in kidney tubules
C. alkalize urine,increase the degree of dissociation and decrease reabsorption in kidney tubules
D. acidize urine,increase the degree of dissociation and decrease reabsorption in kidney tubules
E. acidize urine,decrease the degree of dissociation and increase reabsorption in kidney tubules
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In the body, the drugs that own high affinity for the receptors will()
A. be excreted slowly
B. be excreted fast
C. be absorbed fast
D. need a few doses
E. produce stronger effect
The intrinsic activity of the drugs means()
A. the capacity of membranous penetration
B. the effect when the receptors are stimulated
C. the water solubility
D. the affinity
E. liposolubility
A patient has ingested toic amounts of aspirin, which is a weak acid. Which of the following measures can increase the excretion of aspirin in the urine?()
A. administraion of a weak acid
B. administraion of ammonium chloride
C. administraion of ascorbic acid
D. administraion of a weak base (sodium bicarbonate)
E. administraion of a plcebo
下列关于肝素的正确说法是()
A. 促进血小板聚集
B. 体外抗凝
C. 体内抗凝
D. 降血脂作用
E. 带大量负电荷
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