True or false: When a medication calculation requires rounding, keep the full value during intermediate steps and round only the final result.
1 Dimensional Analysis and Measurement Conversions Online Quiz Questions
Use this free practice quiz with 20 questions to review 1 Dimensional Analysis and Measurement Conversions, test your knowledge, and prepare for your next test or exam.
Which setup correctly converts 2.5 L to milliliters using dimensional analysis?
- A
2.5 L×1000 mL1 L
- B
2.5 L×1 L1000 mL
- C
2.5 L×1000 L1 mL
- D
2.5 L×1 mL1000 L
In dimensional analysis, arrange each conversion factor so matching unwanted units and only the requested unit remains.
Select all statements that give an approximate household-volume equivalent.
- A
A teaspoon is about 5 mL.
- B
A teaspoon is about 15 mL.
- C
A tablespoon is about 15 mL.
- D
A U.S. fluid ounce is about 30 mL.
- E
A U.S. fluid ounce is about 30 g.
- F
A U.S. cup is about 240 mL.
True or false: A U.S. fluid ounce and an ounce by weight can be used interchangeably because both are called ounces.
- A
True
- B
False
For a dose less than one, use a ; for a whole-number dose, avoid a .
Using 1 kg≈2.2 lb, about how many kilograms is 33 lb?
- A
0.066 kg
- B
15 kg
- C
72.6 kg
- D
33 kg
Convert 3.6 kg to grams. Enter the numeric value in grams.
An order is for 0.6 g, and each tablet contains 150 mg. How many tablets equal the ordered amount?
- A
0.004 tablets
- B
2.5 tablets
- C
4 tablets
- D
40 tablets
An order is for 60 mg. The product label states 150 mg per 5 mL. What volume contains the ordered amount? Enter the numeric volume in milliliters.
Select all practices supported for measuring liquid medication accurately.
- A
Measure liquid medication with an oral syringe.
- B
Use the supplied dosing device.
- C
Prefer the stated metric dose and product concentration when possible.
- D
Use any household spoon as a reliable substitute for a dosing device.
- E
Assume household spoons all hold the same volume.
A calculation asks for a volume in milliliters but leaves milligrams as the final unit. What is the best conclusion?
- A
The arithmetic must be correct because the result is a number.
- B
The setup needs to be checked because the result unit does not match the requested unit.
- C
The result is acceptable if milligrams are a metric unit.
- D
Convert the answer to tablets without checking the label.
True or false: If a calculated medication amount seems plausible, that alone confirms that the prescribed dose is appropriate for the patient.
- A
True
- B
False
Which notation follows the recommended conventions for writing a dose that is less than one milligram?
- A
0.5mg
- B
.5mg
- C
5.0mg
- D
05mg
A caregiver needs to measure a liquid medication dose at home. Which approach best reduces measurement error?
- A
Use a household teaspoon because it always holds exactly 5mL.
- B
Use an oral syringe or the supplied dosing device because household spoons vary in size.
- C
Use a spoon measured by weight, since weight and liquid volume are interchangeable.
- D
Estimate the dose with a household spoon, then adjust it to the nearest whole milliliter.
A product label gives a quantity in fluid ounces, while an order gives a quantity in ounces by weight. Which statement should guide the calculation?
- A
Both are units of mass, so they can be substituted when calculating a dose.
- B
A fluid ounce measures mass, while an ounce by weight measures volume.
- C
A fluid ounce measures volume, while an ounce by weight measures mass.
- D
Both are units of volume, but one is used only for liquids.
Which dimensional-analysis setup correctly converts 2.4L to milliliters?
- A
2.4L×1L1,000mL
- B
2.4L×1,000mL1L
- C
2.4L×1,000L1mL
- D
2.4L×1mL1,000L
Using the common medication equivalent of 1tsp≈5mL, what volume is equivalent to 2tsp? Enter the volume in mL.
A liquid contains 160mg per 5mL. What volume contains an ordered amount of 120mg? Enter the calculated volume in mL.
A worksheet says that 0.006g=6mcg. Evaluate this result. Give the correct amount in micrograms and explain the conversion error.