During unit conversion from larger to smaller units, in which direction should the decimal point move?
Right
Left
Middle
Top
The Correct Answer is A
A. Right: When converting from a larger unit to a smaller unit (e.g., grams to milligrams), the decimal point moves to the right because smaller units are more numerous per one larger unit. This increases the numeric value appropriately for the smaller unit.
B. Left: Moving the decimal to the left converts from smaller units to larger units, which decreases the numeric value. This is the opposite of what is needed when going from larger to smaller units.
C. Middle: “Middle” is not a recognized direction in decimal movement for unit conversions. Conversion is based on powers of ten, not arbitrary placement.
D. Top: “Top” is not a valid term for decimal movement in metric conversions. Unit conversions require moving the decimal point either left or right according to size differences.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Pediatric use: Peripheral IVs are commonly used in pediatric patients for short-term access to fluids, medications, and blood products. They provide reliable vascular access for small-volume or intermittent therapies.
B. Rapid use: Peripheral IVs are suitable for rapid administration of fluids or medications, such as bolus infusions, in urgent or emergent situations. They can deliver therapy quickly if the vein size and catheter gauge are appropriate.
C. Long-term use: Peripheral IVs are not intended for long-term therapy because repeated insertion can cause phlebitis, infiltration, or infection. Central venous access is preferred for prolonged administration of medications or total parenteral nutrition.
D. Small-dose use: Peripheral IVs are appropriate for administering small doses of medications intermittently. They allow easy access for titration or scheduled dosing in short-term therapy settings.
Correct Answer is D
Explanation
Calculation:
- Identify the ordered dose and tablet strength
Ordered Dose: 200 mg
Tablet Strength: 400 mg per tablet
- Calculate the number of tablets to administer
Number of Tablets = Ordered Dose ÷ Tablet Strength
Number of Tablets = 200 ÷ 400
= 0.5
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