Question 1

A nurse needs to administer a medication that requires a dosage based on the patient's weight in kilograms. If the patient's weight is 154 lb, what is the weight in kilograms? (Use $$1 	ext{ kg} = 2.20 	ext{ lb})$$

Accepted Answer

$$70.0 	ext{ kg}$$

Question 2

Which of the following is the correct SI unit for measuring temperature in scientific experiments?

Accepted Answer

Kelvin (K)

Question 3

A graduated cylinder contains $$250 	ext{ mL} of $$water. What is this volume in liters?

Accepted Answer

$$0.25 	ext{ L}$$

Question 4

Which of the following statements about the metric and SI systems is TRUE?

Accepted Answer

The SI system uses the cubic meter ($$	ext{m}^3) as $$the official unit of volume.

Question 5

A patient's body temperature is measured as $$38^	ext{\circ}	ext{C}. $$What is this temperature in Kelvin?

Accepted Answer

$$311 	ext{ K}$$

Question 6

Which of the following is NOT a base unit in the International System of Units (SI)?

Accepted Answer

liter (L)

Question 7

A nurse records a patient's height as $$1.70 	ext{ m}. $$What is this height in centimeters?

Accepted Answer

$$170 	ext{ cm}$$

Question 8

Which of the following conversions is correct?

Accepted Answer

$$1 	ext{ m} = 100 	ext{ cm}$$

Question 9

A medication order requires $$0.5 	ext{ g} of a $$drug. How many milligrams is this?

Accepted Answer

$$500 	ext{ mg}$$

Question 10

Which of the following best describes the difference between mass and weight?

Accepted Answer

Mass is the amount of matter in an object, while weight is the force of gravity on that object.

Question 11

A stopwatch is used to measure the time it takes for a chemical reaction to complete. Which SI unit should be used to record this measurement?

Accepted Answer

second (s)

Question 12

A nurse needs to convert a patient's temperature from Fahrenheit to Celsius. If the patient's temperature is $$98.6^	ext{\circ}	ext{F}$$, what is the temperature in Celsius? (Use $$^	ext{\circ}	ext{C} = rac{5}{9}(^	ext{\circ}	ext{F} - 32))$$

Accepted Answer

$$37^	ext{\circ}	ext{C}$$

Question 13

Which of the following is the correct abbreviation for the SI unit of mass?

Accepted Answer

kg

Question 14

A nurse needs to measure a small volume of liquid medication. Which instrument is most appropriate for this task?

Accepted Answer

Graduated cylinder

Question 15

Which of the following is a correct statement about the Kelvin scale?

Accepted Answer

Zero Kelvin represents the lowest possible temperature.

Question 16

A nurse needs to convert $$2.5 	ext{ L} of IV $$fluid to milliliters. What is the correct volume in milliliters?

Accepted Answer

$$2500 	ext{ mL}$$

Question 17

Which of the following is the correct SI unit for length?

Accepted Answer

meter (m)

Question 18

A nurse needs to calculate the dosage rate for a medication. If the prescribed dose is $$5 	ext{ mg/kg}$$ and the patient weighs $$60 	ext{ kg}$$, what is the total dose required?

Accepted Answer

$$300 	ext{ mg}$$

Question 19

Which of the following is a real-world example of using unit conversions in the nursing profession?

Accepted Answer

Calculating drug dosage rates based on patient weight

Chemistry and Measurements: Units in GOB Chemistry

Study Guide - Practice Questions

Study Guide - Flashcards