Test your knowledge on oxazolidinone antibiotics! This NCLEX-style quiz covers essential nursing concepts, including identifying oxazolidinone , safe administration, drug interactions, contraindications, and lab monitoring.
Designed for nursing students and professionals, each question comes with clear rationales to help strengthen your pharmacology knowledge and clinical decision-making skills.
More nursing pharmacology reviews and oxazolidinone nursing notes. You may also want to review our oxazolidinone nursing review before taking this quiz.
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Oxazolidinones (Linezolid) Antibiotics Nursing Quiz Questions
Oxazolidinones Antibiotic Pharmacology NCLEX-Style Questions
- Which medication prescribed for the patient belongs to the antibiotic class known as oxazolidinones?
A. Metronidazole
B. Imipenem
C. Levofloxacin
D. Linezolid
The answer is D: Linezolid. This medication is the only one on the list that is an oxazolidinone. Oxazolidinones inhibit bacterial protein synthesis and are primarily effective against gram-positive bacteria, including MRSA and VRE. Metronidazole is a nitroimidazole used for anaerobic and protozoal infections, Imipenem is a carbapenem (broad-spectrum beta-lactam), and Levofloxacin is a fluoroquinolone that targets DNA synthesis in a broad range of bacteria.
- Which statement correctly describes the bacterial targets of oxazolidinones?
A. This class only targets Gram-positive bacteria.
B. Oxazolidinones target only protozoa.
C. This class treats both Gram-positive and Gram-negative bacteria.
D. Oxazolidinones only target Gram-negative bacteria.
The answer is A: “This class only targets Gram-positive.” Oxazolidinones, such as linezolid, are effective against gram-positive organisms, including MRSA and VRE. They are particularly useful for treating complicated skin infections and bloodstream infections caused by resistant gram-positive bacteria. They have little to no activity against Gram-negative or protozoal infections.
- How do oxazolidinones inhibit bacterial protein synthesis?
A. They damage DNA in anaerobic organisms.
B. They bind to the 50S ribosomal subunit.
C. They inhibit the 30S ribosomal subunit.
D. They inhibit topoisomerase IV.
The answer is B: They bind to the 50S ribosomal subunit. Oxazolidinones inhibit bacterial protein synthesis by binding to the 50S ribosomal subunit. This action stops bacterial growth, producing a bacteriostatic effect rather than killing the bacteria outright.
- True or False: Oxazolidinones are bacteriostatic.
The answer is TRUE. This class works to inhibit protein synthesis by binding the 50S ribosomal subunit. This will stop bacterial growth.
- A nurse is teaching a patient who will be taking an oxazolidinone for 5 weeks to treat osteomyelitis. What instructions should the nurse include in the patient teaching? Select all that apply:
A. Limit green leafy vegetables
B. Avoid contact with people who are ill
C. Monitor blood pressure daily
D. Take the medication with a full glass of milk
E. Assess for signs of abnormal bleeding
F. Schedule regular eye exams
G. Have weekly complete blood count (CBC) levels checked
The answers are B, E, F, and G. Oxazolidinones can lead to myelosuppression, especially when taken for more than 2 weeks. This suppresses bone marrow, causing decreases in white blood cells, red blood cells, and platelets, which can result in infection, anemia, and bleeding problems. Weekly CBCs are recommended to monitor for these complications during prolonged therapy. In addition, prolonged use can cause peripheral and optic neuropathy, so regular eye exams are essential. Patients should also avoid contact with people who are ill due to increased infection risk and assess for signs of abnormal bleeding. The other options are not necessary: limiting green leafy vegetables does not affect therapy, daily blood pressure monitoring is not required, and taking the medication with milk is unnecessary because absorption is not affected.
- A patient has been taking an oxazolidinone for more than 2 weeks. The patient presents with hematuria, fatigue, ecchymosis, and purpura. Which lab result is most likely to be abnormal?
A. White blood cell count (WBC)
B. Serum potassium
C. Platelet count
D. Serum creatinine
The answer is C: Platelet count. Prolonged oxazolidinone therapy can cause myelosuppression, including thrombocytopenia, which presents with bleeding symptoms such as hematuria, ecchymosis, and purpura. WBCs may also be affected but are less likely to explain the bleeding. Serum creatinine and potassium is not typically impacted by oxazolidinones.
- A patient with VRE endocarditis is prescribed an oxazolidinone to treat the infection. The patient is also scheduled to take sertraline. What action should the nurse take next?
A. Administer the medications as scheduled.
B. Hold the medications and notify the healthcare provider.
C. Administer the medications 2 hours apart.
D. Assess the patient’s blood pressure.
The answer is B: Hold the medications and notify the healthcare provider. Oxazolidinones can interact with SSRIs like sertraline. This can lead to serotonin syndrome. The best nursing action is to hold the medication and notify the provider before administering.
- The nurse is providing diet teaching to a patient who will be taking oxazolidinone at home. Which statement by the patient demonstrates they understood the teaching?
A. “I can still enjoy red wine while taking this medication.”
B. “I need to use potassium-salt substitutes while taking this medication.”
C. “I will avoid sauerkraut, kimchi, and pickles.”
D. “I need to limit green leafy vegetables like spinach and kale.”
The answer is C: “I will avoid sauerkraut, kimchi, and pickles.” Oxazolidinones are known to be weak MAO inhibitors. Therefore, they can interact with foods rich in tyramine. This includes: aged cheese, cured meats, fermented foods, red wine, etc. If consumed while taking an oxazolidinone it can lead to a hypertensive crisis. Option A is incorrect because red wine is high in tyramine and should be avoided while taking oxazolidinones. Option B is incorrect because potassium-salt substitutes do not interact with oxazolidinones and are not a concern. Option D is incorrect because green leafy vegetables primarily affect vitamin K–related drugs, such as warfarin, and have no significant interaction with oxazolidinones.
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