Check Test #1 Questions on Factor Label Method

1. Check Test #1 Questions on Factor Label Method

2. If your instructor requires you to do so, “TYPE” or “PRINT” each of the following questions. If you PRINT, you must use a Number # 2 Pencil. You must first write the Question and then “Show Your Work” for each part under each question and then move to the next part. If it is a mathematical problem, you must show the equation, substitute and then work it out showing every needed step. You “CANNOT” do any work in your head. This means you must show every step with its needed step.

3. The following problems will require the use of only one Conversion-Factor-Fraction: • 1. How much time is required to administer 400. mL of a glucose I.V. Solution if the rate of flow is 7.5 mL per 1.0 minute? • [Give answer with two significant figures] • How many milliliters of a drug solution that contains • 2.5 milligrams of drug per 1.0 milliliter( mL ) are required • to provide to a patient a dose of 8.0 mg? • [ Give 2 significant figures ] • 75 mm = ? cm [ Give 2 significant figures ] • 24.0 inches = ? cm [ Give 3 significant figures ]

4. The following problems will require the use of only one Conversion-Factor-Fraction: • A patient requires a dose of 25 mg of sedative, and the drug is provided in a solution that contains 15 mg of drug per milliliter. What volume in milliliters will provide the correct dose ? • Assume that the 15 mg per milliliter means 15. mg per 1.0 mL. • The 15 mg and 1.0 mL each have 2 significant figures. • [ Give 2 significant figures ] • How much carbohydrate must by oxidized by the human body to produce 30.0 calories? • Each 1.00 gram of carbohydrate produces 4.00 calories of energy. • [ Give 3 significant figures ] • 7. A liquid has a density of 0.654 grams per 1.00 milliliter. • What is the weight of 40.5 mL of this liquid? • [ Give 3 significant figures ]

5. The following problems will require the use of two or more Conversion-Factor-Fractions: • 50.6 cc = ? liters • [Definitions: 1 mL = 1 cc; 1000 mL = 1 liter] • [ Give 3 significant figures ] • 5.200 qt = ? mL • 1000 mL = 1 liter, 1.06 quarts = 1.00 liter • [ Give 3 significant figures ] • If one test tube (1.00 test tube ) holds 23.0 mL of water, • how many test tubes would be needed to hold 1.00 quart of water? • [ Give 3 significant figures ]

6. II. The following problems will require the use of two or more Conversion-Factor-Fractions: • A 122 pounds-patient is to receive a drug at a rate of • 0.200 mg per 1.00 kilogram of body weight. • If the drug is supplied as a solution containing 5.00 mg/mL, how many milliliters (mL) of this drug solution should he receive? • [ Give 3 significant figures in your final answer ] • If a value is given as 5.00 mg/mL, WE “MUST ASSUME” that the milliliter (mL) part is 1.00 mL so it will have the same number of significant figures as the numerator. • Remember that 1.00 kilogram = 2.20 pounds contains only 3 significant figures.

7. II. The following problems will require the use of two or more Conversion-Factor-Fractions: • A calcium report indicated 8.00 mg/dL of calcium ions • in the blood. • If we assume that the patient has 6.00 quarts of blood, • how many grams of calcium ions are in his blood? • [ Give 3 significant figures in your final answer ] • Remember that 8.00 mg/ dL means 8.00 mg / 1.00 dL. Also, remember that 1 liter = 10 deciliters • is a “ Defined Value “ in the Metric System.

8. II. The following problems will require the use of two or more Conversion-Factor-Fractions: • 13. If first-class-postage is 40.0 cents for each 1.00 ounce, how much • postage ( money ? ) is required for a package weighing 113.5 • grams? • [ Give 3 significant figures in your final answer ] • [ 16 ounces = 1 pound is a definition ; $ 0.400 per 1 .00 ounce and 1.00 pound = 454 grams all contain only • 3 Significant Figures ] • A doctor orders 0.040 grams of medication. How many 10.0 mg- • tablets must be given? • [ Give 2 significant figures in your final answer ] • Remember that 1 gram = 1000 mg is a "Defined Value" in the Metric System and the 0.040 gram has only • 2 significant figures.

9. II. The following problems will require the use of two or more Conversion-Factor-Fractions: • If a patient is 6.00 feet tall, what is the patient's height • in meters? • [ Give 3 significant figures in your final answer ] • Remember that 1 meter = 100 cm and 12 inches = 1 foot are "Defined Values, but 2.54 centimeters (cm) = 1.00 inch has only 3 significant figures.

10. II. The following problems will require the use of two or more Conversion-Factor-Fractions: • If a beta particle travels at a speed of • 112,000 miles per second, • what is this value in centimeters (cm) per second? • [ Give three significant figures in your answer ] • Remember that 112,000 miles per second really means 112,000 miles per 1.00 second. Be sure that you use a set-up that contains all the values given in Scientific Notation. • Remember that 5280 feet = 1.00 mile and 12 inch = 1 foot are "Defined Values, but 2.54 centimeters (cm) = 1.00 inch contains only 3 significant figures.

11. II. The following problems will require the use of two or more Conversion-Factor-Fractions: • A large dose of an antileukemic drug is to be administered to a • 190. pounds-patient by I.V. Solution. • The recommended dose is 50.0 mg per 1.00 kilogram of body weight. • Also, the drug is supplied as a solution that contain • 20.0 mg per 1.00 milliliter. • The I.V. has a flow rate of 3.00 milliliters per 1.00 minute. • Question A: How many mL of the solution will be required ? • [ Give 3 significant figures ] • Question B: How long will it take to give the recommended dose? • [ Give 3 significant figures ] • Remember that 1.00 kilogram = 2.20 pounds, 190. pounds-patient, • 50.0 mg / 1.00 kg, 20.0 mg / 1.00 ml and flow rate of • 3.00 milliliters / 1.00 minute all contain 3 significant figures.