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After teaching a group of nursing students about penicillins, the instructor determines that the teaching was successful when the students identify which of the following as a group? Select all that apply.
- A. Synthetic penicillins
- B. Natural penicillins
- C. Penicillinase-resistant penicillins
- D. Aminopenicillins
- E. Extended-spectrum penicillins
Correct Answer: B,C,D,E
Rationale: Penicillins are categorized into four groups including the natural penicillins, penicillinase-resistant penicillins, aminopenicillins, and extended-spectrum penicillins.
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A patient who has been on penicillin therapy for several days has developed inflamed oral mucous membranes and swelling in the tongue and the gums. The primary health care provider has diagnosed it as a fungal superinfection of the oral cavity resulting in impaired oral mucous membranes. Which of the following interventions should the nurse perform?
- A. Inspect mouth and gums regularly.
- B. Instruct patient to avoid brushing teeth.
- C. Offer patient a liquid diet.
- D. Instruct the patient to gargle every 2 hours.
Correct Answer: A
Rationale: The nurse should regularly inspect the patient's mouth and gums to assess the patient's progress. The nurse should instruct the patient to use a soft-bristled toothbrush. The patient need not follow a liquid diet; a nonirritating soft diet can be recommended. Gargling every 2 hours may not help relieve the symptoms and may even aggravate the existing condition.
The nurse is providing care to a patient who is receiving an aminoglycoside for a wound infection. The patient is also ordered to receive a cephalosporin. The nurse would carefully assess the patient for which of the following?
- A. Nausea
- B. Nephrotoxicity
- C. Increased bleeding
- D. Respiratory difficulty
Correct Answer: B
Rationale: When cephalosporin is administered with aminoglycosides, it increases the risk for nephrotoxicity and should be closely monitored. Nausea is an adverse reaction of cephalosporins in patients with gastrointestinal tract infection. The risk of bleeding increases when cephalosporin is administered with oral anticoagulants. The risk for respiratory difficulty and a disulfiram-like reaction increases if alcohol is consumed within 72 hours after administration of certain cephalosporins.
A group of nursing students are reviewing the different groups of penicillins. The students demonstrate understanding when they identify which of the following as an example of a penicillinase-resistant penicillin? Select all that apply.
- A. Dicloxacillin
- B. Penicillin G
- C. Nafcillin
- D. Oxacillin
- E. Ampicillin
Correct Answer: A,C,D
Rationale: Dicloxacillin, nafcillin, and oxacillin are examples of penicillinase-resistant penicillins. Penicillin G is an example of a natural penicillin. Ampicillin is an example of an aminopenicillin.
A nurse is conducting an in-service training program for a group of nurses about antibacterial drugs such as penicillins and cephalosporins. During the question-and-answer period, the audience asks for examples of conditions that can be treated by cephalosporins. Which of the following would the nurse include in the response?
- A. Hemolysis
- B. Urinary tract infections
- C. Nausea and diarrhea
- D. Jaundice
Correct Answer: B
Rationale: Cephalosporins are used to treat respiratory infections, otitis media, urinary tract infections, and bone and joint infections, and prophylactically to treat infections that may result from a sexual assault. Cephalosporins are not used to treat hemolysis or jaundice. Nausea and diarrhea are some of the adverse reactions that can occur when a patient is on cephalosporin therapy.
A patient undergoing penicillin therapy shows improvement and states that he is feeling better. Which of the following interventions is the nurse most likely to perform in such a situation?
- A. Instruct patient to increase dietary intake.
- B. Inform the primary health provider immediately.
- C. Record assessments on patient's chart.
- D. Inquire about any previous drug allergies.
Correct Answer: C
Rationale: When the patient declares that he is feeling better and is also showing improved health, it should be recorded on the patient's chart. If the condition of the patient has improved, the patient will show an increased appetite, but there is no need to instruct the patient to increase dietary intake. The primary health provider need not be informed about the condition immediately unless the patient shows signs of deterioration or complications. The nurse should inquire about previous drug allergies before the start of therapy.