Why is it important to use a zero before a decimal point when writing medication dosages in the metric system?
To avoid the need for additional decimal points.
To make the dosage appear larger.
To prevent misinterpretation of the dosage amount.
To standardize the abbreviation of the unit of measure.
The Correct Answer is C
A. To avoid the need for additional decimal points: Using a leading zero does not eliminate the need for decimals; it ensures clarity in decimal placement, rather than removing or adding decimal points.
B. To make the dosage appear larger: The purpose of the leading zero is not to visually enlarge the dose. Making the number appear larger could be misleading and unsafe.
C. To prevent misinterpretation of the dosage amount: A zero before a decimal point (e.g., 0.5 mg instead of .5 mg) clearly indicates that the value is less than one unit. Omitting the zero increases the risk of a tenfold dosing error, which could be dangerous to the patient.
D. To standardize the abbreviation of the unit of measure: While standardization of units is important, the leading zero specifically addresses numeric clarity, not unit abbreviation or standardization.
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Correct Answer is D
Explanation
A. Right medication: The right medication focuses on ensuring the correct drug is selected and matched with the prescription. Confirming the patient’s meal schedule does not address whether the correct medication is being administered.
B. Right documentation: The right documentation involves accurately recording medication administration details after giving the drug. Meal timing relates to when the medication is given, not how it is recorded.
C. Right route: The right route ensures the medication is given via the correct pathway, such as oral or intravenous. Taking a medication with food affects timing and absorption, not the route of administration.
D. Right time: Confirming the patient’s meal schedule ensures the medication is given at the appropriate time in relation to food intake. This supports proper absorption, effectiveness, and reduction of adverse effects, making it a priority for the right time.
Correct Answer is B
Explanation
A. Graduated cylinder and a funnel: While a graduated cylinder can measure liquid medications, a funnel is not practical for nasogastric tube administration and may increase the risk of spillage or contamination.
B. Syringe without a needle: A syringe without a needle is essential for safely delivering medications through a nasogastric tube. It allows controlled administration directly into the tube without causing injury or clogging.
C. Needle and syringe: Needles are not used for nasogastric tube administration because they can damage the tube and pose a risk of injury; medication should be delivered directly via the syringe.
D. Pill crusher and a stethoscope: A pill crusher may be used to prepare solid medications for tube administration, but a stethoscope is unnecessary for the act of administering medication itself. The syringe is the primary equipment needed.
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