Q- Which of the following is the effect of digoxin on a case of heart failure?
A- Decreased stroke volume and vagal activity
B- Increased stroke volume and cardiac output
C- Increased sympathetic tone and decreased vagal activity
D- Rapid conduction through AV node
Q- Which of the following is the mechanism of action of flumazenil in the treatment of lorazepam toxicity?
A- Competitive inhibition at benzodiazepine receptors
B- Inhibition of alpha adrenoceptors
C- Noncompetitive inhibition of benzodiazepine receptors
D- Stimulation of dopamine receptors
Q- Which of the following is the role of infliximab in the management of rheumatoid arthritis?
A- Inhibition of dihydrofolate reductase
B- It is a TNF-alpha receptor agonist
C- It is a TNF-alpha receptor antagonist
D- It neutralizes the activity of TNF-alpha by binding to soluble forms of it