Chapter 11 - Caffeine

Question 1

Drinking 5 or more cups of coffee per day

A. Actually reduces the rate of heart attacks
B. More than doubles the risk of a heart attack
C. Slightly increases the risk of a heart attack
D. Increases heart attack risk only in smokers

Answer 1

B. More than doubles the risk of heart attacks

Question 2

Caffeine works in the brain by

A. Stimulating dopamine release
B. Interfering with glutamate release
C. Blocking serotonin receptors
D. Blocking adenosine receptors

Answer 2

D. Blocking adenosine receptors

Question 3

The maximum CNS effect of caffeine is reached about ____ after drinking coffee

A. 15 min
B. 30 min
C. 2 hrs
D. 4 hrs

Answer 3

C. 2 hrs

Question 4

In 1909, the FDA seized some coca-cola syrup and filed charges against the company partly because

A. They syrup contained cocaine
B. They formula was secret
C. Toxins in the Kola nuts
D. The syrup contained caffeine

Answer 4

D. The syrup contained caffeine

Question 5

According to current FDA rules on cola drinks

A. They cannot contain more than 6mg caffeine per oz
B. They label must state how much caffeine is included
C. They must contain less than 50mg of caffeine
D. They must all contain 10mg per 12 oz

Answer 5

A. They cannot contain more than 6mg caffeine per oz

Question 6

Most regular brewed teas have about how much caffeine per cup

A. 150-170 mg (more than coffee)
B. 40-60 mg
C. 10-15 mg
D. Less than 5 mg

Answer 6

B. 40-60 mg

Question 7

The main active ingredient in Red Bull and other energy drinks is

A. Caffeine
B. Taurine
C. Guanine
D. Tyrosine

Answer 7

A. Caffeine

Question 8

_____ is prescribed to asthma sufferers because it relaxes bronchial passages

A. Camellia sinensis
B. Theobromine
C. Exanthine
D. Theophylline

Answer 8

D. Theophylline

Question 9

Which of the following statements is true of physiological effects of caffeine

A. With 2 cups of coffee taken close together (about 200 mg) the cortex is deactivated, the EEG shows a calming pattern
B. The pharmacological effects on the CNS and the skeletal muscles are probably the basis for the use of caffeine-containing beverages
C. In the absence of tolerance, even 200 mg will decrease the time it takes it takes to fall asleep and cause hypersomnia
D. There are no effects from caffeine

Answer 9

B. The pharmacological effects on the CNS and skeletal muscles are probably the basis for the wide use of caffeine - containing beverages

Question 10

Higher doses of caffeine are needed to affect the autonomic centers of the brain, HR, and RR can increase at this dose.

A. 200 mg
B. 650 mg
C. 500 mg
C. 350 mg

Answer 10

C. 500 mg