Q. What is a common side effect of tetracycline antibiotics?
-
A.
Nausea
-
B.
Photosensitivity
-
C.
Diarrhea
-
D.
Rash
Solution
Photosensitivity is a well-known side effect of tetracycline antibiotics.
Correct Answer:
B
— Photosensitivity
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Q. What is a serious side effect associated with the use of aminoglycosides?
-
A.
Hepatotoxicity
-
B.
Nephrotoxicity
-
C.
Cardiotoxicity
-
D.
Ototoxicity
Solution
Aminoglycosides can cause ototoxicity, leading to hearing loss.
Correct Answer:
D
— Ototoxicity
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Q. What is the mechanism of action of fluoroquinolones?
-
A.
Inhibition of cell wall synthesis
-
B.
Inhibition of protein synthesis
-
C.
Inhibition of DNA gyrase
-
D.
Inhibition of folic acid synthesis
Solution
Fluoroquinolones inhibit DNA gyrase, which is essential for bacterial DNA replication.
Correct Answer:
C
— Inhibition of DNA gyrase
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Q. What is the primary mechanism of action of penicillin?
-
A.
Inhibition of protein synthesis
-
B.
Disruption of cell wall synthesis
-
C.
Inhibition of nucleic acid synthesis
-
D.
Inhibition of folic acid synthesis
Solution
Penicillin works by disrupting the synthesis of the bacterial cell wall, leading to cell lysis.
Correct Answer:
B
— Disruption of cell wall synthesis
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Q. What is the primary use of vancomycin?
-
A.
Treating viral infections
-
B.
Treating gram-negative infections
-
C.
Treating gram-positive infections
-
D.
Treating fungal infections
Solution
Vancomycin is primarily used to treat serious infections caused by gram-positive bacteria.
Correct Answer:
C
— Treating gram-positive infections
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Q. Which antibiotic is effective against anaerobic bacteria?
-
A.
Cefazolin
-
B.
Metronidazole
-
C.
Amoxicillin
-
D.
Azithromycin
Solution
Metronidazole is effective against anaerobic bacteria and is often used for such infections.
Correct Answer:
B
— Metronidazole
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Q. Which antibiotic is often used to treat MRSA infections?
-
A.
Ceftriaxone
-
B.
Clindamycin
-
C.
Amoxicillin
-
D.
Gentamicin
Solution
Clindamycin is commonly used to treat infections caused by MRSA.
Correct Answer:
B
— Clindamycin
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Q. Which of the following antibiotics is a beta-lactam?
-
A.
Doxycycline
-
B.
Ciprofloxacin
-
C.
Penicillin
-
D.
Clindamycin
Solution
Penicillin is a beta-lactam antibiotic that targets bacterial cell wall synthesis.
Correct Answer:
C
— Penicillin
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Q. Which of the following antibiotics is classified as a macrolide?
-
A.
Ciprofloxacin
-
B.
Azithromycin
-
C.
Vancomycin
-
D.
Amoxicillin
Solution
Azithromycin is a macrolide antibiotic that inhibits bacterial protein synthesis.
Correct Answer:
B
— Azithromycin
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Q. Which of the following antibiotics is contraindicated in pregnancy?
-
A.
Amoxicillin
-
B.
Ciprofloxacin
-
C.
Clindamycin
-
D.
Erythromycin
Solution
Ciprofloxacin is contraindicated in pregnancy due to potential risks to the fetus.
Correct Answer:
B
— Ciprofloxacin
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