Q- An 80 mg dose of a drug was administered to a patient. 40 mg was eliminated during the first hour. This drug follows first-order elimination kinetics.
Which of the following is the amount of the drug remains 3 hours after administration?
A- 30 mg
B- 20 mg
C- 10 mg
D- None
Q- Which of the following differentiate neostigmine from pilocarpine?
A- Acceleration of heart rate
B- Prolonged skeletal muscle contraction
C- Stimulation of bowel motility
D- Stimulation of salivary glands
nQ- Which one of the following actions of epinephrine is blocked by prazosin?
A- Bronchial dilation
B- High stroke volume
C- Pupil dilation
D- Tachycardia