What is the correct interpretation of the calibration lines on a U-100 insulin syringe?
Each small line indicates 5 units of insulin.
Each small line indicates 2 units of insulin.
Each small line indicates 1 unit of insulin.
Each small line indicates 0.5 units of insulin.
The Correct Answer is C
A. Each small line indicates 5 units of insulin: This is inaccurate because a U-100 insulin syringe has smaller graduations for precise dosing, and 5-unit increments would not allow accurate measurement of single-unit doses.
B. Each small line indicates 2 units of insulin: While closer, most U-100 syringes are marked in single-unit increments, making 2-unit interpretation insufficiently precise for safe insulin administration.
C. Each small line indicates 1 unit of insulin: Each small line represents 1 unit, allowing precise measurement of insulin doses. This accuracy is crucial for patient safety, especially when administering doses that are not multiples of five.
D. Each small line indicates 0.5 units of insulin: U-100 syringes are not typically marked in half-unit increments. Using this interpretation could lead to under- or overdosing, particularly in standard adult dosing.
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Related Questions
Correct Answer is A
Explanation
A. The metric system is based on units of 10, simplifying calculations: The metric system’s base-10 structure allows for straightforward conversions between units (e.g., mg to g, mL to L), reducing calculation errors and improving accuracy in medication dosing and clinical measurements.
B. The metric system uses Roman numerals for clarity: The metric system does not use Roman numerals; it relies on standard numeric values and prefixes for measurements.
C. The metric system is only used in healthcare settings: The metric system is used universally in science, healthcare, and many other fields, not exclusively in healthcare.
D. The metric system eliminates the need for conversions: Conversions are still sometimes required within the metric system (e.g., mg to g), but they are simplified by the base-10 structure rather than eliminated entirely.
Correct Answer is D
Explanation
A. Ask another nurse to verify the partial label: Consulting another nurse does not guarantee safety, as both may be unable to identify the medication accurately with a torn label. Verification must be based on complete and clear information.
B. Reconstruct the label using other medications as a reference: Attempting to infer the medication from other labels is unsafe. It risks administering the wrong drug, leading to potential adverse effects or medication errors.
C. Administer the medication if the dosage is visible: Even if the dosage is readable, the torn label may hide critical information such as the drug name, route, or expiration date. Administering it would compromise patient safety.
D. Request a new medication from the pharmacy: Obtaining a new, properly labeled medication ensures accuracy, patient safety, and adherence to the rights of medication administration. This is the safest and most appropriate action.
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