True or false: Antibiotics treat viral illnesses as well as bacterial infections.
1 Antibiotics Online Quiz Questions
Use this free practice quiz with 20 questions to review 1 Antibiotics, test your knowledge, and prepare for your next test or exam.
A patient with confirmed group A streptococcal pharyngitis is prescribed penicillin. Which best describes penicillin’s main action?
- A
Blocking bacterial DNA gyrase
- B
Inhibiting bacterial cell-wall synthesis
- C
Blocking the 30S ribosomal subunit
- D
Inhibiting bacterial folate synthesis
Which bacterial ribosomal subunit do macrolides act on? Enter the subunit designation, such as 30S.
Which statement about vancomycin is most accurate?
- A
It inhibits bacterial cell-wall synthesis and is active against many Gram-positive organisms.
- B
It blocks the 30S ribosomal subunit and covers all Gram-negative organisms.
- C
It inhibits bacterial folate synthesis and is routinely used for viral infections.
- D
It disrupts bacterial DNA replication and is always preferred over narrower options.
Which statement correctly compares the ribosomal targets of macrolides and tetracyclines?
- A
Both inhibit bacterial cell-wall synthesis.
- B
Macrolides act at the 50S subunit; tetracyclines act at the 30S subunit.
- C
Macrolides inhibit DNA gyrase; tetracyclines inhibit folate synthesis.
- D
Both disrupt bacterial cell membranes.
Fluoroquinolones such as ciprofloxacin primarily interfere with which bacterial process?
- A
DNA replication
- B
Peptidoglycan cross-linking
- C
Folate production
- D
50S ribosomal function
A clinician is reviewing the mechanism of trimethoprim-sulfamethoxazole (TMP-SMX). Which pathway does this drug combination target?
- A
Bacterial folate synthesis
- B
Cell-membrane integrity
- C
Peptidoglycan cross-linking
- D
RNA polymerase
A culture identifies a susceptible Gram-positive organism. Which statement about vancomycin is most accurate?
- A
It is active against many Gram-positive organisms.
- B
It is routinely preferred for viral infections.
- C
It covers all Gram-negative organisms.
- D
It is always preferred over narrower options.
For an otherwise healthy adult with uncomplicated acute bronchitis and no evidence of pneumonia, routine antibiotics are usually not recommended.
- A
True
- B
False
Antibiotics treat which category of infections, rather than viral illnesses?
When multiple antibiotic options are effective, which spectrum should generally be preferred?
A patient’s infection is worsening, and culture and susceptibility results are available. Which approach best supports reassessing antibiotic therapy?
- A
Continue the initial broad-spectrum drug regardless of the results.
- B
Use the results and clinical picture to select an effective, appropriately targeted agent.
- C
Add multiple antibiotics whenever a culture identifies a bacterium.
- D
Choose the newest available antibiotic without considering the infection site.
Which approach best reflects antibiotic stewardship when antibiotics are indicated?
- A
Use antibiotics whenever a patient has a fever.
- B
Use an antibiotic only when indicated, for the shortest effective duration supported by guidance.
- C
Use broader-spectrum antibiotics to prevent resistance.
- D
Ignore local resistance patterns when choosing therapy.
A clinician is comparing antibiotic options for a patient with a documented medication allergy and a medical condition that may affect drug handling. Which patient-specific factors should be considered when assessing the options? Select all that apply.
- A
The patient's medication allergies
- B
The patient's organ function
- C
The patient's risk of adverse effects
- D
The brand name of the newest available antibiotic
- E
The patient's preferred pill color
A clinician must make an initial antibiotic plan before the causative organism is confirmed. Which information should help guide that plan? Select all that apply.
- A
The organisms that are likely to be causing the infection
- B
The site of the infection
- C
Current local clinical guidance
- D
Which antibiotic is newest, regardless of the clinical context
- E
A rule to use the same antibiotic for every infection
Knowing an antibiotic's drug class is sufficient by itself to determine that it is the best treatment for an individual patient.
- A
True
- B
False
A clinician is assessing whether an antibiotic is suitable for a patient whose ability to process medications may be affected by a medical condition. Which patient-specific factor named in the material should be assessed? Enter the two-word factor.
Before selecting therapy for a patient, assess relevant patient-specific factors, including medication and .
When more than one antibiotic option is effective, the choice should take the infection's and into account.
A laboratory result shows that two antibiotics are active against the identified organism. Explain why that result alone does not determine which antibiotic is most appropriate for the patient. Name at least three other considerations.