Actual Questions and Answers
Expert-Verified Explanation
This Exam contains:
✪ 50 Questions and Answers
✪ Multiple-choice and True/False Format
✪ Expert-Verified Explanations
✪ Verified with Trusted Textbooks
1. What is a risk factor for otitis externa (OE)?
A. Dry climate
B. Winter months
C. High altitude
D. Warm and humid conditions
Answer: D
EXPLANATION: Warm weather and high humidity promote bacterial and fungal growth in the
ear canal, increasing OE risk.
2. Which class of antibiotics is commonly used to treat OE?
A. Penicillins
B. Tetracyclines
C. Fluoroquinolones
D. Macrolides
Answer: C
EXPLANATION: Fluoroquinolones are preferred for OE due to broad-spectrum activity and
safety in tympanic membrane perforation.
3. Which medication is a fluoroquinolone used for OE?
A. Clindamycin
B. Ofloxacin
C. Erythromycin
D. Amoxicillin
Answer: B
EXPLANATION: Ofloxacin is a fluoroquinolone effective for OE, especially with TM
perforation.
, 4. Which medication is safe to use with a perforated tympanic membrane in OE?
A. Neomycin
B. Aminoglycoside
C. Fluoroquinolone
D. Carbamide peroxide
Answer: C
EXPLANATION: Fluoroquinolones are safe for OE with TM perforation as they are non-
ototoxic.
5. Which aminoglycoside is used in OE treatment?
A. Vancomycin
B. Neomycin
C. Streptomycin
D. Amikacin
Answer: B
EXPLANATION: Neomycin is an aminoglycoside used in combination therapy like Cortisporin
for OE.
6. What is Cortisporin composed of?
A. Neomycin only
B. Ciprofloxacin and hydrocortisone
C. Neomycin, polymyxin B, hydrocortisone
D. Amoxicillin and clavulanate
Answer: C
EXPLANATION: Cortisporin includes neomycin, polymyxin B, and hydrocortisone for
antibacterial and anti-inflammatory effects.
7. What is used to treat fungal OE?
A. Amoxicillin
B. Fluconazole
C. Azithromycin
D. Augmentin
Answer: B
EXPLANATION: Fluconazole is an antifungal effective against fungal OE.