True or False: One tablespoon is equivalent to 30 milliliters.
False
(Rationale: One tablespoon is equivalent to 15 milliliters.)
Six fluid
... [Show More] ounces are equivalent to how many milliliters?
a. 120 mL
b. 180 mL
c. 240 mL
d. 60 mL
b. 180 mL
(Rationale: One fluid ounce is equivalent to 30 mL. Using this conversion, the nurse would set up the following ratio and proportion: 1 f oz/30 mL = 6 f oz/X mL. Cross multiplying and solving for X: X = 180 mL.)
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A patient is to receive 150 mL of intravenous solution over the next hour using a microdrip delivery system. How much fluid would the patient receive in 1 minute?
a. 2.5 mL
b. 1.5 mL
c. 4.5 mL
d. 3.0 mL
a. 2.5 mL
(Rationale: The nurse would divide 150 mL by 60 minutes, which would result in 2.5 mL per minute.)
A child is to receive 500 mg of an antibiotic suspension. The label on the bottle reads 250 mg/5 mL. The nurse would administer how much of the suspension in one dose?
a. 2.5 mL
b. 7.5 mL
c. 5 mL
d. 10 mL
d. 10 mL
(Rationale: To determine the amount to give, the nurse would set up the following ratio and proportion: 250 mg/5 mL = 500 mg/X mL. Cross multiplying and solving for X: 250X = 5 x 500; X = 10 mL.)
A drug label reads "1 tablet equals 50 milligrams". How many grains would this be?
a. 0.5 grain
b. 1.5 grains
c. 2 grains
d. 1 grain
d. 1 grain
(Rationale: Sixty milligrams is equivalent to 1 grain.)
True or False: Clark's rule is commonly used today to calculate pediatric drug dosages, but Young's rule is rarely used.
False
(Rationale: Clark's rule, Young's rule, and Fried's rule are not commonly used to determine pediatric doses. Body surface area or milligrams per kilogram of body weight are most commonly used.)
A patient states that he takes 5 grains of aspirin every day. The nurse would determine that the patient takes how many milligrams every day?
a. 600 mg
b. 150 mg
c. 450 mg
d. 300 mg
d. 300 mg
(Rationale: One grain is equivalent to 60 mg. So 5 grains would be equivalent to 300 mg. Using the ratio and proportion method 1 grain/60 mg = 5 grains/X: Cross multiply to determine 300 mg = 5 grains.)
A nurse is checking the dosage of a prescribed medication ordered for a child. The child has a body surface area of 0.40 m2. The nurse finds that the average adult dose of the drug is 250 mg. Which dosage, if ordered, would be appropriate for this child?
a. 174 mg
b. 58 mg
c. 100 mg
d. 116 mg
b. 58 mg
(Rationale: Using the surface area calculation formula, the nurse would calculate the following:
0.40 m2 x 250
173 = 57.8 mg or 58 mg.)
A patient is to receive 0.05 g of a diuretic. The patient has 25 mg tablets on hand. The nurse would instruct the patient to take how many tablets?
a. 2
b. 1.5
c. 1
d. 0.5
a. 2
(Rationale: 0.05 g is equivalent to 50 mg, which can be determined by moving the decimal point 3 places to the right. To calculate the number of tablets, the nurse would set up a ratio and proportion: 25 mg/1 tab = 50 mg/X tab. Cross multiplying and solving for X: 25X = 50; X = 2 tablets.)
A group of students are reviewing the various measurement systems. The students demonstrate understanding of the material when they identify which of the following units as associated with the apothecary system? (Select all that apply.)
a. Pound
b. Drop
c. Minim
d. Liter
e. Grain
f. Kilogram
c. Minim
e. Grain
(Rationale: Grain and minim are measurement units of the apothecary system. Pound is a measurement unit of the household system. Kilogram is a measurement unit of the metric system. Liter is a measurement unit of the metric system. Drop is a measurement unit of the household system.)
A nurse is to administer 150 mg of a drug intramuscularly. The label on the multidose vial reads 100 mg/mL. How much would the nurse give?
a. 1.5 mL
b. 2 mL
c. 1 mL
d. 2.5 mL
a. 1.5 mL
(Rationale: To determine the amount to give, the nurse would set up the following ratio and proportion: 100 mg/1 mL = 150 mg/X mL. Cross multiplying and solving for X: 100X = 150; X = 1.5 mL.)
A nurse is using the metric system for solid measure. Which unit would the nurse expect to use?
a. Gram
b. Dram
c. Liter
d. Grain
a. Gram
(Rationale: Gram is a measure of solids in the metric system. Grain is a measure of solids in the apothecary system. Liter is a measure of liquid in the metric system. A dram is a measure of solids in the apothecary system.)
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A nurse is using the body surface area method to calculate a pediatric dosage. Which of the following would be most important for the nurse to have that other methods of pediatric dosage calculation would not require?
a. Calculator
b. Child's age in months
c. Scale
d. Nomogram
d. Nomogram
(Rationale: To use the body surface area method, it is essential to have a nomogram available. A nomogram is only used in the body surface area method. A calculator would be needed for other dosage calculation methods as well as the body surface method. A scale would be needed for other dosage calculation methods as well as the body surface method. The child's age in months is not used in the body surface area method.) [Show Less]