A nurse is reinforcing teaching with a client about the treatment of methicillin-resistant Staphylococcus aureus (MRSA). Which of the following information should the nurse include in the instructions?
Infections become resistant to high doses of antibiotics.
Antibiotic dosages below the minimum concentration are prescribed.
Antibiotics are prescribed only when a viral infection is present.
Broad-spectrum antibiotics are used whenever possible.
The Correct Answer is A
A) Infections become resistant to high doses of antibiotics:
Methicillin-resistant Staphylococcus aureus (MRSA) is a strain of Staphylococcus aureus that has become resistant to the antibiotic methicillin, as well as other beta-lactam antibiotics (such as penicillin and cephalosporins). Over time, bacteria can develop resistance mechanisms, often as a result of antibiotic misuse or overuse, such as not completing a full course of treatment or using antibiotics unnecessarily. MRSA, in particular, can grow resistant to higher and higher doses of standard antibiotics, making treatment more challenging.
B) Antibiotic dosages below the minimum concentration are prescribed:
Antibiotic dosages should always be prescribed at the minimum inhibitory concentration (MIC), which is the lowest concentration of the drug that can inhibit bacterial growth. Prescribing antibiotics below this concentration would not be effective in treating the infection and could contribute to antibiotic resistance.
C) Antibiotics are prescribed only when a viral infection is present:
Antibiotics, including those prescribed for MRSA, are only effective against bacterial infections, not viral infections. For viral infections (such as the flu or common cold), antibiotics should not be used, as they are ineffective. MRSA is a bacterial infection, and it requires appropriate antibiotic therapy specifically targeted to the bacteria, not a viral infection.
D) Broad-spectrum antibiotics are used whenever possible:
While broad-spectrum antibiotics are sometimes used in initial treatments when the specific bacterial pathogen is unknown, their overuse can contribute to the development of antibiotic resistance. In the case of MRSA, a more targeted approach with antibiotics specifically effective against resistant strains (like vancomycin or clindamycin) is preferred.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A) Prevent respiratory infections:
Albuterol does not prevent respiratory infections. It is a bronchodilator, which means it works to relax and open the airways, improving airflow during episodes of bronchospasm (such as during an asthma attack or exacerbation of COPD). Respiratory infections are usually managed by other types of medications, such as antibiotics or antivirals, depending on the type of infection.
B) Decrease mucus production in the lungs:
While albuterol may help improve breathing and airway function by dilating the airways, it does not directly decrease mucus production. Albuterol works to relieve bronchospasms (tightening of the muscles around the airways), making it easier to breathe, but it doesn’t target mucus production. Some other treatments, like mucolytics or expectorants, are more directly aimed at reducing mucus in the lungs.
C) Reduce inflammation in the airways:
Albuterol is not an anti-inflammatory medication. Its main role is as a bronchodilator, which works by relaxing the muscles around the airways, relieving bronchospasm. Inflammation in the airways is a key component of chronic obstructive pulmonary disease (COPD), but albuterol does not directly reduce this inflammation. Inhaled corticosteroids (ICS) are typically used to address inflammation in COPD.
D) Improve airflow and relieve bronchospasms:
Albuterol is a short-acting beta-agonist (SABA) that works by relaxing the smooth muscles around the airways in the lungs, which helps open them up and improves airflow. This action provides quick relief from symptoms of bronchospasm, such as wheezing and shortness of breath, making it the most appropriate explanation for its use in COPD patients.
Correct Answer is C
Explanation
Given:
Ordered dose of Heparin: 100,000 units
Concentration of Heparin: 25,000 units/10 mL
Step 1: Set up the proportion:
Desired dose (units) / Volume to administer (mL) = Concentration (units/mL)
Step 2: Substitute the values:
100,000 units / Volume = 25,000 units/10 mL
Step 3: Solve for the unknown volume:
Volume = 100,000 units / (25,000 units/10 mL)
Volume = 100,000 units x (10 mL / 25,000 units)
Volume = 40 mL
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.