Problem 125 - Cliffs Test Prep NCLEX-RN

Question

The nurse is reviewing the laboratory results from a wound culture and notes that the infection is sensitive to erythromycin, levofloxin, and cephalosporin. If the patient is allergic to “mycin” antibiotics, she might anticipate which of the following antibiotic classification in the medication order? 1\. Augmentin 2\. Gentamicin 3\. Levaquin 4\. Pediazole

Step-by-Step Solution

Answer

The antibiotic classification the nurse should anticipate is Levaquin (levofloxacin).

Step 1: Understanding the Context

The nurse is examining a wound culture's results indicating the infection is sensitive to erythromycin (a 'mycin'), levofloxacin ('a floxacin'), and cephalosporin. The patient, however, is allergic to antibiotics ending in 'mycin'.

Step 2: Analyze Antibiotic Options

Review the provided antibiotics: 1. Augmentin (amoxicillin combined with clavulanate) 2. Gentamicin (an aminoglycoside, ending in 'mycin') 3. Levaquin (levofloxacin, a fluoroquinolone) 4. Pediazole (contains erythromycin ('mycin'))

Step 3: Exclusion Based on Allergy

Exclude any antibiotics that the patient is allergic to. Gentamicin and Pediazole are both in the 'mycin' category, thus not suitable for the patient.

Step 4: Identifying the Suitable Antibiotic

Among the non-excluded options, Levaquin (levofloxacin) is sensitive to the infection and is not a 'mycin', making it a suitable choice.

Key Concepts

Antibiotic Sensitivity

Antibiotic sensitivity is a crucial factor in determining the correct medication to treat bacterial infections. When a bacterial infection is present, healthcare providers often order a test called a wound culture to identify the bacteria causing the infection.
Once the bacteria are identified, they are tested against various antibiotics to determine which ones are most effective at inhibiting the growth of the bacteria. This process of determining the effectiveness of antibiotics is called "antibiotic sensitivity testing."
The results guide clinicians on choosing the most effective drug while minimizing unnecessary antibiotic exposure and the risk of developing resistance. When reviewing sensitivity reports, a "sensitive" outcome indicates that the antibiotic is likely to be effective in treating the infection.

Allergy Management

Managing allergies, especially when it comes to medications, is vital in nursing practice. Allergic reactions can range from mild skin rashes to severe, life-threatening anaphylaxis. Identification of allergies is a key component, which involves taking a detailed patient history.
When a patient is allergic to certain antibiotics, it's important for healthcare providers to communicate this clearly in the patient's medical record. This helps in preventing accidental administration of allergens, ensuring alterations in treatment plans to avoid allergic reactions.
For instance, if a patient is allergic to 'mycin' antibiotics, alternatives that do not belong to this class need to be considered, such as levofloxacin, which belongs to a different group and could be potentially safe for such patients.

Wound Culture Analysis

Wound culture analysis is a vital procedure in diagnosing infections and choosing appropriate treatments. In this process, a sample from the affected wound area is collected and analyzed in the laboratory.
This helps in identifying the type of bacteria present. When healthcare professionals perform a wound culture, they are able to understand not only the causative organism but also how resilient it is to common antibiotic treatments, which is crucial for treatment success.
Understanding the precise bacterium and its reaction to the tested antibiotics guides targeted therapy rather than broad-spectrum antibiotic use, minimizing side effects and reducing the potential for antibiotic resistance.

Nursing Practice

In nursing practice, administering medication is a fundamental duty that requires considerable precision and understanding. Nurses are responsible for ensuring that administered medications are not only effective but also safe for the patient.
This involves reviewing laboratory results, such as antibiotic sensitivity reports, and taking into account the patient's allergies to avoid adverse reactions. An integral part of this practice involves collaboration with the broader healthcare team, ensuring that any allergies or sensitivities are communicated and documented.
Beyond medication management, nurses provide essential education to patients about their medications—including potential side effects and how to properly take them—ensuring better adherence to treatment plans and improved health outcomes.