How does the dosage strength on a drug label ensure proper medication administration?
It indicates the drug's expiration date.
It provides information on the drug's side effects,
It guides the exact amount to be administered.
lists the inactive ingredients.
The Correct Answer is C
Rationale:
A. It indicates the drug's expiration date: The expiration date shows how long the medication remains effective, but it does not guide dosing or administration amounts.
B. It provides information on the drug's side effects: Side effects are listed separately in patient information materials, not in the dosage strength section of the label.
C. It guides the exact amount to be administered: Dosage strength specifies the amount of active drug per unit, such as milligrams per tablet or milliliters per liquid. This information is essential for calculating and administering the correct dose to ensure therapeutic effectiveness and patient safety.
D. Lists the inactive ingredients: Inactive ingredients are important for identifying potential allergens but do not inform the nurse about the correct dose to give the patient.
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Related Questions
Correct Answer is C
Explanation
Rationale:
A. milli, 10^-3: "Milli" represents one-thousandth of a unit, or 10^-3, which is correct for millimeters or milliliters, but does not correspond to "micro."
B. centi, 10^-2: "Centi" represents one-hundredth of a unit (10^-2), used for centimeters or centiliters, and is not equivalent to "micro."
C. micro, 10^-6: "Micro" denotes one-millionth of a unit, or 10^-6. This prefix is used in measurements such as micrograms (µg) or microliters (µL), which are critical in precise medication dosing.
D. nano, 10^-9: "Nano" represents one-billionth of a unit (10^-9), which is smaller than "micro" and is used in specialized contexts, not standard clinical dosing.
Correct Answer is A
Explanation
Rationale:
A. Decreases the value by a factor of 1000: Moving the decimal point three places to the left in the metric system reduces the number’s value by 1/1000 of its original amount. For example, 1000 mL becomes 1 L, reflecting a thousandfold decrease in magnitude.
B. Decreases the value by a factor of 100: Moving the decimal two places left, not three, would decrease the value by a factor of 100. Three places are required for a factor of 1000.
C. Increases the value by a factor of 1000: Moving the decimal to the left decreases the number, not increases it. Increasing the value by a factor of 1000 would require moving the decimal three places to the right.
D. No change in value: Shifting the decimal alters the numerical value according to the number of places moved. Moving it three places to the left significantly decreases the value, so there is indeed a change.
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