L-dopa's efficacy in the treatment of Parkinson's disease decreases after a few years of treatment because
a. as the patient gets older plasma concentrations may increase too fast and produce motor disturbances and adverse psychic effects
b. as the patient gets older plasma concentrations may fall too quickly, allowing the disease symptoms to suddenly appear
c. of continued progression of the underlying cause of the disease
d. all of the above
Question 2
In normal adult humans, alertness, decreased fatigue, improved ability to concentrate, and elevated mood are likely to be observed following administration of low doses of
a. amphetamine
b. cocaine
c. nicotine
d. all of these
The Lyme disease tick
Huntington’s Disease
Bovine Spongiform Encephalopathy and Creutzfeldt-Jakob Disease
International Normalized Ratio Guidelines for Dental Treatment
Patients Older than 60 Years of Age
In Canada, disease-related deaths become increasingly common during middle adulthood