Antibiotics and Antivirals Practice Questions by Nurse Ryan

Introduction

• Review of common drugs: amoxicillin, tetracycline, erythromycin, and more.
• Explanation of answers and rationales for each quiz question.

Quiz Questions and Answers

Question 1: Milk and Antibiotics

• Question: Milk must be avoided with which of the following antibiotic classifications?
• Answer: C. Tetracyclines
• Rationale: Dairy products can bind to tetracyclines, preventing adequate absorption and decreasing effectiveness.

Question 2: Narrow-Spectrum Antibiotics

• Question: Which of the following are examples of narrow-spectrum antibiotics?
• Answer: D. None of the above
• Rationale: All options provided are examples of broad-spectrum antibiotics.

Question 3: Superinfections

• Question: A superinfection is a term used to describe a bacterium that has gained antibiotic resistance due to failure in initial treatment.
• Answer: B. False
• Rationale: A superinfection occurs after or on top of another infection, typically following antibiotic treatment harming host flora.

Question 4: Antibiotic Therapy

• Question: Which of the following statements is true about antibiotic therapy?
• Answer: B. Antibiotic-associated diarrhea is a common side effect.
• Rationale: Caused by an imbalance of GI tract bacteria.
• Incorrect Options: A, C, and D.

Question 5: Antivirals

• Question: Antivirals such as aciclovir and valaciclovir fight directly against viruses to kill them and do not act on bacteria.
• Answer: B. False
• Rationale: Antivirals do not directly kill viruses but inhibit viral replication. They do not act on bacteria.

Question 6: Amoxicillin and Clavulanic Acid

• Question: Blank and clavulanic acid is a common combination of two antibiotics known as clavulin.
• Answer: A. Amoxicillin
• Rationale: Clavulin is the combination of amoxicillin and clavulanic acid.

Question 7: Cefazolin (Ancef)

• Question: Cefazolin or ancef is a blank generation cephalosporin.
• Answer: A. First generation
• Rationale: Cefazolin is effective against gram-positive bacteria.
• Note: Second-generation cephalosporins are effective against gram-negative but less effective against gram-positive.

Question 8: Erythromycin

• Question: Which of the following antibiotics when given orally must be given via enteric-coated tablet or capsules?
• Answer: C. Erythromycin
• Rationale: Erythromycin is inactivated by stomach acids and must be given enteric-coated.

Conclusion

• Encourage likes and subscriptions.
• Open for questions and suggestions in the comments.

Links

• Reference to a video on amoxicillin and clavulin.