Pharmacy Subjects MCQs with Answer Keys - MCQ # 141 to 150 - Part 15

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Note: Answer keys are given at the end of the MCQs.

141. 'Ceiling effect' of a pharmaceutical agent refers to;
a- max effect after which further dosing won't increase the effect
b- max interval after which effect is lost
c- max duration of treatment
d- max dosage beyond which further increase is detrimental
e- lowering of pharmacological effects of co-administered drugs

142. BCG (Bacille Calmette-Guerin) is a vaccine for which disease?
a- tuberculosis
b- yellow fever
c- chickenpox
d- smallpox
e- shingles

143. All of the following are CNS stimulants except one;
a- nicotine
b- amphetamine
c- dexmethylphenidate
d- dextroamphetamine
e- naltrexone

144. The mechanism of action of streptomycin is;
a- inhibits cell membrane synthesis
b- inhibits protein synthesis
c- inhibits cell metabolism
d- inhibits RNA synthesis
e- inhibits DNA synthesis

145. Streptomycin belongs to pharmacological class of;
a- lincosamides
b- oxazolidinones
c- aminoglycosides
d- glycylcyclines
e- ketolides




146. The mechanism of action of Rifampicin is;
a- inhibits cell membrane synthesis
b- inhibits protein synthesis
c- inhibits cell metabolism
d- inhibits RNA synthesis
e- inhibits DNA synthesis

147. Bacitracin acts through which ONE of the following mechanisms?
a- inhibits cell wall synthesis
b- inhibits protein synthesis
c- inhibits cell metabolism
d- inhibits RNA synthesis
e- inhibits DNA synthesis

148. Sulfa drugs acts through which ONE of the following mechanisms?
a- inhibits cell wall synthesis
b- inhibits protein synthesis
c- inhibits cell metabolism
d- inhibits RNA synthesis
e- inhibits DNA synthesis

149. To treat urinary tract infections (UTIs) without the use of antibiotics, all of the following strategies can be used but one;
a- hydration
b- use of probiotics
c- vitamin C supplementation
d- have cranberry juice
e- vitamin D supplementation

150. People with which blood group are said to be universal donors, meaning they can give blood to everyone?
a- A+ve
b- B-ve
c- AB+ve
d- O+ve
e- O-ve

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Answer Keys

MCQ # - Correct option

141- a
142- a
143- e
144- b
145- c
146- d
147- a
148- c
149- e
150- e