Which of the following is stated correctly using metric abbreviations and rules?
Ampicillin 500 mg
ampicillin mg 500
ampicillin 500 MG
ampicillin 500.0 mg
The Correct Answer is A
A) Ampicillin 500 mg
This is correctly written using metric abbreviations and follows standard rules for medication dosage. In the metric system, the drug name is followed by the dose, with the unit of measurement ("mg" for milligrams) written in lowercase. The correct usage of the unit abbreviation "mg" and proper spacing between the medication and the dose makes this option correct. Additionally, no trailing zeros are used, which is important for avoiding confusion in clinical settings.
B) ampicillin mg 500
This is incorrect because the unit of measurement ("mg") should follow the dose, not precede it. The correct format places the drug name first, followed by the numerical dose, and then the unit of measurement (in this case, "mg"). The unit abbreviation should be lowercase and placed after the dose. This structure is standard in pharmaceutical and medical documentation.
C) ampicillin 500 MG
While this provides the correct drug name and dosage, the unit abbreviation "MG" is written in uppercase, which is incorrect according to standard guidelines. Unit abbreviations should be written in lowercase letters unless they are the first word in a sentence. Writing "MG" in uppercase can lead to confusion and does not follow the convention for unit symbols.
D) ampicillin 500.0 mg
This is also incorrect because of the unnecessary trailing zero after the decimal point. In medication dosage, a trailing zero (e.g., 500.0 mg) is considered a potential error, as it can be misinterpreted. For example, a dosage of "500.0 mg" may be misread as a higher dose (e.g., 500 mg vs. 500.0 mg), and this could lead to medication errors. Standard practice is to avoid using trailing zeros unless they are required to prevent ambiguity (e.g., 0.5 mg).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The order directly states that the infusion rate is 30 mL/hr.
The information about the amount of Lidocaine (2 g) and the volume of D5W (250 mL) is irrelevant to determining the flow rate in this case.
The flow rate is already specified as 30 mL/hr in the order.
Correct Answer is B
Explanation
Given:
Ordered dose of amoxicillin: 300 mg
Concentration of amoxicillin oral solution: 250 mg/5 mL
Step 1: Set up the proportion:
Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)
Step 2: Substitute the values:
300 mg / Volume = 250 mg/5 mL
Step 3: Solve for the unknown volume:
Volume = 300 mg / (250 mg/5 mL)
Volume = 300 mg x (5 mL / 250 mg)
Volume = 6 mL
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