Test your knowledge on tetracycline antibiotics! This NCLEX-style quiz covers essential nursing concepts, including identifying tetracyclines, 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 tetracycline nursing notes. You may also want to review our tetracycline antibiotics lecture before taking this quiz.
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Tetracyclines Antibiotics Nursing Pharmacology Quiz Questions
Tetracycline Antibiotics Class Nursing Quiz
- The nurse knows which antibiotic ordered by the healthcare provider is considered a tetracycline?
A. Azithromycin
B. Sulfadiazine
C. Doxycycline
D. Metronidazole
The answer is C: Doxycycline. This is the drug in the tetracycline class of antibiotics. Azithromycin is a macrolide, sulfadiazine is a sulfonamide, and metronidazole is a nitroimidazole.
- Which organisms are targeted by tetracyclines? Select all that apply:
A. fungi
B. some protozoa
C. gram-positive
D. gram-negative
The answers are B, C, and D. Tetracyclines target some protozoa (malaria), gram-positive (Streptococcus), and gram-negative (tick-borne bacteria like Rickettsia). They do not target fungal infections.
- Which statement below is NOT correct about how tetracyclines work to treat infections?
A. “Tetracyclines are bacteriostatic.”
B. “This class targets 30S ribosomal subunit.”
C. “Tetracyclines inhibit folic acid synthesis.”
D. “These medications work to inhibit bacterial protein synthesis.”
The answer is C: Tetracyclines inhibit folic acid synthesis. This is an incorrect statement about tetracyclines. The sulfonamide class of antibiotics works to inhibit folic acid synthesis. All the other statements accurately describe tetracyclines.
- The patient is due to receive a tetracycline antibiotic at 1000. Which medication listed below should not be given at the same time as the tetracycline?
A. Calcium carbonate
B. Lisinopril
C. Omeprazole
D. Diphenhydramine
The answer is A: Calcium carbonate. Tetracyclines should not be given at the same time as antacids containing calcium, magnesium, or aluminum. In addition, it should be avoided with iron or zinc supplements. The reason for this is because the minerals bind with the medication and prevent its absorption. The tetracycline should be administered at least 2 hours before or 4-6 hours after taking these substances.
- A patient is being discharged home on a 10-day antibiotic regimen of tetracycline. Which statement by the patient does NOT indicate an understanding of how to safely take this medication?
A. “I will wear long sleeves and a hat when I go outside.”
B. “I will take this with a full 8-oz glass of milk.”
C. “I will not take this at the same time as my iron supplement.”
D. “It’s important I avoid becoming pregnant while taking this medication.”
The answer is B: “I will take this with a full 8-oz glass of milk.” Calcium (found in milk) can affect how well tetracyclines are absorbed and should not be taken together. The other statements reflect the patient’s understanding about medication safety. It’s important to wear protective clothing and/or sunscreen while outside due to photosensitivity. The patient should take the medication with water (not milk) and avoid taking it with iron or zinc supplements. In addition, these medications are contraindicated in pregnancy because they can harm fetal development.
- The nurse is administering tetracycline to the patient. Which actions by the nurse are incorrect when administering this medication? Select all that apply:
A. positions the patient semi-prone
B. administers it without food
C. gives the patient a glass of water to take the medication
D. educates the patient to avoid tyramine-rich foods
The answers are A and D. Assisting the patient into a semi-prone position is incorrect because the patient should sit upright for at least 30 minutes to prevent irritation to the esophagus. Avoiding tyramine-rich foods is not required when taking tetracyclines. However, patients taking oxazolidinones should avoid these foods (aged cheese, cured meats, fermented foods) due to the risk of hypertensive crisis. The other options are correct post-administration actions for tetracyclines. Note: if severe GI upset occurs they can be administered with foods (especially doxycycline).
- The nurse is assessing a patient’s recent medication orders. Which patient should the nurse seek clarification before administering tetracycline?
A. A 6-year-old patient with a respiratory infection.
B. A 38-year-old with acne.
C. A 22-year-old with Lyme disease.
D. A 10-year-old with malaria.
The answer is A: A 6-year-old patient with a respiratory infection. Tetracyclines are contraindicated in patients under 8-years-old due to the risk of tooth discoloration and bone growth issues. Therefore, this order needs clarification. The other patients do not require clarification.
- Which lab result below requires the nurse to hold the ordered dose of tetracycline and notify the healthcare provider for further orders?
A. HCG: negative
B. Creatinine: 5 mg/dL
C. AST: 25 U/L
D. Potassium: 4.6 mEq/L
The answer is B: Creatinine: 5 mg/dL. Most tetracyclines are excreted by the kidneys (some via both the liver and kidneys). Renal function must be normal so drug toxicity does not occur. A creatinine of 5 mg/dL is high and demonstrates renal impairment (normal ~0.6-1.2 mg/dL). All the other labs: HCG (negative result indicates the patient is not pregnant; tetracyclines are contraindicated in pregnancy), AST (within normal limits; indicating normal liver function), and potassium (within normal limits).
The answers are A and C. The nurse should question the vancomycin order for the patient with viral pneumonia since it doesn’t treat viral infections. The order for the patient on hemodialysis also needs clarification because dosing must be adjusted for kidney function. Orders for patients with a penicillin allergy and bacterial endocarditis are appropriate and don’t require questioning.
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