11. The following may be used in the treatment of digoxin toxicity:
a) propranolol
b) lidocaine
c) phenytoin
d) calcium
e) potassium
12. Dobutamine:
a) is structurally similar to isoprenaline
b) activates adenyl cyclase
c) has a selective action on beta-1 adrenoreceptors
d) has a half-life of 2 minutes
e) increases the left ventricular end-diastolic pressure
13. Organophosphorus anticholinesterases:
a) have an irreversible action
b) phosphorylate cholinesterase
c) can have their action reversed in the early stages by atropine
d) are readily absorbed through the skin
14. The following factors encourage passage of a substance across the cell membrane:
a) high lipid solubility
b) low concentration gradient
c) high molecular weight
d) negative hydrostatic pressure
e) high degree of ionisation
15. Amitriptyline in overdose causes:
a) cardiac arrhythmias
b) hypotension
c) restlessness
d) metabolic acidosis
e) jaundice
ANSWERS
11.TTTFT
12.TTFTF
13.TTTT
14.TFFFF
15.TTTTF
ArticleDate:20060214
SiteSection: Article
|
