Q: A patient is prescribed 0.25 grams of a medication. How many milligrams is this?

$$0.25 \times 1000 = 250$$ milligrams

Q: Convert 2.5 liters to milliliters.

$$2.5 \times 1000 = 2500$$ milliliters

Q: Which of the following correctly converts 68°F to Celsius?

$$(68 - 32) \times \frac{5}{9} = 20$$°C

Q: Which of the following is the correct formula to convert Celsius to Fahrenheit?

$$\text{°F} = (\text{°C} \times \frac{9}{5}) + 32$$

Q: A nurse needs to administer 0.4 liters of IV fluid. How many quarts is this, given that 1 liter ≈ 1.057 quarts?

$$0.4 \times 1.057 = 0.423$$ quarts

Q: If a solution has a density of 1 g/ml, what is the mass of 250 ml of this solution?

$$1 \text{ g/ml} \times 250 \text{ ml} = 250 g$$

Question 1

Which of the following is the correct base unit for measuring mass in the metric system?

Accepted Answer

Gram (g)

Question 2

A patient is prescribed 0.25 grams of a medication. How many milligrams is this?

Accepted Answer

$$0.25 	imes 1000 = 250$$ milligrams

Question 3

Which metric prefix represents one-billionth of a unit?

Accepted Answer

Nano-

Question 4

Convert 2.5 liters to milliliters.

Accepted Answer

$$2.5 	imes 1000 = 2500$$ milliliters

Question 5

A laboratory sample has a mass of 1500 mg. What is this mass in grams?

Accepted Answer

$$1500 \div 1000 = 1.5$$ grams

Question 6

Which of the following correctly converts 68°F to Celsius?

Accepted Answer

$$(68 - 32) 	imes \frac{5}{9} = 20$$°C

Question 7

A nurse needs to convert 0.75 liters to cubic centimeters (cc). What is the correct value?

Accepted Answer

$$0.75 	imes 1000 = 750 cc$$

Question 8

Which of the following is the correct metric unit for measuring temperature?

Accepted Answer

Celsius (°C)

Question 9

A solution contains 500 micrograms (μg) of a substance. How many milligrams (mg) is this?

Accepted Answer

$$500 \div 1000 = 0.5 mg$$

Question 10

Which of the following statements about metric notation is correct?

Accepted Answer

The unit abbreviation always follows the amount, e.g., 5 g.

Question 11

A patient weighs 88 pounds. What is their approximate weight in kilograms?

Accepted Answer

$$88 \div 2.2 = 40 kg$$

Question 12

Which of the following is the correct conversion for 1 inch to centimeters?

Accepted Answer

1 inch = 2.54 cm

Question 13

A 2-liter bottle of soda contains how many milliliters?

Accepted Answer

$$2 	imes 1000 = 2000 ml$$

Question 14

Which of the following is the correct formula to convert Celsius to Fahrenheit?

Accepted Answer

$$	ext{°F} = (	ext{°C} 	imes \frac{9}{5}) + 32$$

Question 15

A nurse needs to administer 0.4 liters of IV fluid. How many quarts is this, given that 1 liter ≈ 1.057 quarts?

Accepted Answer

$$0.4 	imes 1.057 = 0.423$$ quarts

Question 16

Which of the following is the correct order from largest to smallest unit?

Accepted Answer

Kilogram, Gram, Milligram, Microgram

Question 17

A scientist measures a distance of 0.000001 meters. Which metric prefix best represents this value?

Accepted Answer

Micro-

Question 18

If a solution has a density of 1 g/ml, what is the mass of 250 ml of this solution?

Accepted Answer

$$1 	ext{ g/ml} 	imes 250 	ext{ ml} = 250 g$$

Question 19

A temperature of 20°C is best described as:

Accepted Answer

Comfortably warm

Question 20

Which of the following is true about converting from a smaller to a larger metric unit?

Accepted Answer

You divide by the order-of-magnitude difference between the units.

The Metric System: Foundations for Anatomy & Physiology

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