A patient has a urinary tract infection.
The nurse knows that which class of drugs is especially useful for such infections?
Macrolides
Sulfonamides
Carbapenems
Tetracyclines
The Correct Answer is B
Choice A rationale:
Macrolides Macrolides, such as erythromycin and azithromycin, are a class of antibiotics that are typically used to treat infections caused by gram-positive bacteria and some respiratory tract infections. They are not the first line of treatment for urinary tract infections.
Choice B rationale:
Sulfonamides Sulfonamides, such as sulfamethoxazole, are often used to treat urinary tract infections. They work by stopping the growth of bacteria. Sulfonamides are often combined with other antibiotics like trimethoprim to increase their effectiveness. This combination is commonly known as co-trimoxazole.
Choice C rationale:
Carbapenems Carbapenems are a class of antibiotics that are usually reserved for serious infections caused by gram-negative bacteria. While they can be used to treat a variety of infections, they are not typically the first choice for urinary tract infections.
Choice D rationale:
Tetracyclines Tetracyclines are a group of broad-spectrum antibiotics that are effective against a wide range of bacteria. However, they are not typically used for urinary tract infections. They are more commonly used for infections such as acne, chlamydia, and Lyme disease.
Please consult with a healthcare professional for accurate information.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale:
Fluconazole Fluconazole is an antifungal medication used to treat and prevent fungal infections. It works by stopping the growth of certain types of fungus. However, it is not effective against bacterial infections such as anthrax.
Choice B rationale:
Tobramycin Tobramycin is an aminoglycoside antibiotic used to treat various types of bacterial infections, particularly Gramnegative infections. It works by stopping the growth of bacteria. However, it is not typically used to treat anthrax.
Choice C rationale:
Ciprofloxacin Ciprofloxacin is a fluoroquinolone antibiotic used for the treatment of a number of bacterial infections. This includes bone and joint infections, intra-abdominal infections, certain type of infectious diarrhea, respiratory tract infections, skin infections, typhoid fever, and urinary tract infections, among others. For the treatment of anthrax, ciprofloxacin is one of the antibiotics that could be used. It works by killing the anthrax or by stopping the anthrax from growing. When the anthrax can’t grow anymore, it dies.
Choice D rationale:
Vancomycin Vancomycin is an antibiotic used to treat a number of bacterial infections. It is recommended intravenously as a treatment for complicated skin infections, bloodstream infections, endocarditis, bone and joint infections, and meningitis caused by methicillin-resistant Staphylococcus aureus. However, it is not typically used to treat anthrax.
Correct Answer is C
Explanation
The correct answer is Choice C.
Let’s go through the calculation step by step:
Step 1: Identify the order and the available medication. The order is for dexamethasone (Decadron) 6mg IM. The available stock is dexamethasone 4mg/1ml in a 5ml multidose vial.
Step 2: Determine the amount of medication needed to fulfill the order. This is done by dividing the ordered amount by the concentration of the available medication.
So, we have:
Step 2 Calculation=Concentration of Available MedicationOrdered Amount Substituting the given values: Step 2 Calculation=4 mg/mL6 mg Step 3: Perform the calculation.
Step 3 Calculation=1.5 mL
So, the nurse will prepare 1.5 mL of this medication.
Now, let’s discuss the rationales for each choice:
Choice A rationale:
75 mLs is not the correct amount. This would be a significantly larger dose than ordered, which could lead to an overdose.
Choice B rationale:
5 mLs is not the correct amount. This would also be a larger dose than ordered, which could lead to an overdose.
Choice C rationale:
1.5 mLs is the correct amount. This is calculated by dividing the ordered dose (6 mg) by the concentration of the available medication (4 mg/mL).
Choice D rationale:
15 mLs is not the correct amount. This would be a significantly larger dose than ordered, which could lead to an overdose.
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