A nurse is preparing to administer ciprofloxacin as ordered. Which test would the nurse ensure is completed before administering the first dose to the patient?
- A. Urinalysis
- B. Culture tests
- C. Ulcer tests
- D. Stool tests
Correct Answer: B
Rationale: The nurse should check whether culture tests are conducted before the first dose of drug, is administered to the client. Ulcer tests and stool tests are not required to be conducted before administering the first dose of an anti-infective drug to the client. The nurse has to ensure that urinalysis is conducted before the administration of the drug but not specifically before the first dose of the anti-infective drug.
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A nurse is preparing to administer ciprofloxacin as ordered. Which test would the nurse ensure is completed before administering the first dose to the patient?
- A. Urinalysis
- B. Culture tests
- C. Ulcer tests
- D. Stool tests
Correct Answer: B
Rationale: The nurse should check whether culture tests are conducted before the first dose of drug, is administered to the client. Ulcer tests and stool tests are not required to be conducted before administering the first dose of an anti-infective drug to the client. The nurse has to ensure that urinalysis is conducted before the administration of the drug but not specifically before the first dose of the anti-infective drug.
A client is receiving a fluoroquinolone and is also taking ibuprofen for pain relief. The nurse would be alert for which of the following?
- A. Increased risk for bleeding
- B. Decreased effectiveness of the fluoroquinolone
- C. Increased risk for seizures
- D. Delayed elimination of the fluoroquinolone
Correct Answer: C
Rationale: When a nonsteroidal anti-inflammatory drug such as ibuprofen is used in conjunction with a fluoroquinolone, the patient has an increased risk for seizures. An increased risk of bleeding would occur with oral anticoagulants in conjunction with fluoroquinolone therapy. Decreased effectiveness of the fluoroquinolone would occur if it was given with antacids, iron salts, or zinc because of decreased absorption of the antibiotic. Cimetidine interferes with the elimination of the fluoroquinolone, leading to prolonged presence of the drug in the bloodstream.
A client develops a severe case of pseudomembranous colitis secondary to fluoroquinolone therapy. The fluoroquinolone is stopped immediately and the client receives intravenous fluids and protein supplementation. The physician prescribes medication as part of the treatment plan. The nurse would expect to administer which of the following?
- A. Fidaxomicin
- B. Metronidazole
- C. Norfloxacin
- D. Moxifloxacin
Correct Answer: A
Rationale: Moderate to severe cases of pseudomembranous colitis may require treatment with intravenous (IV) fluids and electrolytes, protein supplementation, and treatment with drugs such as fidaxomicin (Dificid) to eliminate the microorganism. Metronidazole is used to treat infections involving anaerobic organisms. Norfloxacin and moxifloxacin are fluoroquinolones and would not be used.
A client develops pseudomembranous colitis secondary to fluoroquinolone therapy. The nurse understands that this is the result of which organism?
- A. E. coli
- B. C. difficile
- C. Staphylococcus
- D. Group B hemolytic Streptococcus
Correct Answer: B
Rationale: Pseudomembranous colitis is one type of a bacterial superinfection. This potentially life-threatening problem develops because of an overgrowth of the microorganism Clostridium difficile (C. diff) in the bowel.
A patient develops a superinfection due to fluoroquinolone therapy. The patient asks the nurse why this happened. Which response by the nurse would be most appropriate?
- A. Your infection was really severe, so the drug wasn't as effective as it could have been.
- B. This happens when your original infection begins to clear.
- C. The drug disrupts your normal bacteria so it allows other organisms to grow.
- D. We really don't know why this happens; it just does sometimes.
Correct Answer: C
Rationale: Antibiotics can disrupt the normal flora (nonpathogenic bacteria in the bowel), causing a secondary infection or superinfection. This new infection is 'superimposed' on the original infection. The destruction of large numbers of nonpathogenic bacteria (normal flora) by the antibiotic alters the chemical environment. This allows uncontrolled growth of bacteria or fungal microorganisms that are not affected by the antibiotic being administered. It has nothing to do with the drug's effectiveness or the original infection being cleared.
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