Chapter 17 Dosage Calculations and medication administration questions and answers well illustrated.

Chapter 17 Dosage Calculations and medication administration questions and answers well illustrated. 1. what is the correct conversion for the improper fraction 77/9? a. 7 7/9 b. 8 5/9 c. 7.79 d. 79.7 - correct answers.b. 8 5/9 Divide the numerator by the denominator. 2. What is the fraction 80/100 when reduced to its lowest term ? a. 8/10 b. 1/4 c. 4/5 d. 3 - correct answers.c. 4/5 Find a number that will evenly divide into the numerator and the denominator. 3. which of the following is the largest? a. 1/2 b. 1/3 c. 1/4 d. 1/5 - correct answers.a. 1/2 The smaller the denominator, the larger the fraction. 4. Which of the following fractions is the smallest? a. 3/12 b. 2/3 c. 5/6 d. 3/4 - correct answers.a. 3/12 The larger the denominator, the smaller the fraction. 5. What is the sum of 3/4 and 7/8? a. 10/48 b. 10/12 c. 21/4 d. 1 5/8 - correct answers.d. 1 5/8 Find the common denominator and add. Reduce to lowest terms 6. What is the product of 5/6 x 1/2? A. 5/12 b. 6/10 c. 10/6 d. 51/12 - correct answers.A. 5/12 Multiply the numerators and denominators. 7. what is the 3/4 divided by 1/5? a. 3/20 b. 15/4 c. 31/45 d. 4/15 - correct answers.b. 15/4 Write the problem down correctly, invert second number, and multiply 8. What is 2.34 + 0.77? a. 0.01 b. 90.4 c. 2.417 d. 3.11 - correct answers.d. 3.11 Align the decimal point of each decimal fraction in a column and add. 9. What is 6.147 rounded to the nearest tenth? a. 6.2 b. 6.15 c. 6.14 d. 6.1 - correct answers.d. 6.1 A subsequent number that is 5 or larger can increase the previous number by one whole number. A subsequent number that is less than 5 will leave the number unchanged. 10. What is 2.5 x 2? a. 1.25 b. 5 c. 50 d. 22.5 - correct answers.b. 5 11. what is 4.5 divided by 3? a. 0.75 b. 1.5 c. 5 d. 0.66 - correct answers.b. 1.5 12. What is 0.9% expressed as a decimal? a. 9 b. 0.9 c. 0.09 d. 0.009 - correct answers.d. 0.009 Remove the % and move the decimal point two places to the left. or divide 0.9 by 100 13. what is 1/5 expressed as a percent? a. 50% b. 20% c. 10% d. 5% - correct answers.b. 20% Change a fraction to a percent by dividing the numerator by the denominator and multiplying by 100 14. Which is the same ratio as 2:100? a. 1:50 b. 5:300 c. 1:20 d. 4:25 - correct answers.a. 1:50 The value of a ratio is not changed if both sides are multiplied or divided by the same number. 15. The medication order reads "Ibuprofen 600 mg PO tid." The bottle is labeled "Ibuprofen 200 mg/tab." How many tablets should the nurse administer? a. 1 b. 2 c. 3 d. 6 - correct answers.c. 3 Desired dose over available dose times the unit. The unit is what the available dose is contained in. 16. The health care provider has ordered furosemide 20 mg stat. The ampule is labeled 40 mg/mL. What dose should the nurse administer? a. 0.8 mL b. 0.5 mL c. 2.0 mL d. 8.0 mL - correct answers.b. 0.5 mL Desired dosage over the available dosage times the unit. The unit is what the available dosage is contained in. 17. 6 mg is equal to how many grams? a. 6.0 g b. 0.6 g c. 0.06 g d. 0.006 g - correct answers.d. 0.006 g Small to big, move decimal point three places to the left. 1 gram = 1000 mg 18. 0.5 L is equal to how many mL? a. 0.0005 mL b. 0.05 mL c. 50 mL d. 500 mL - correct answers.d. 500 mL Big to small, move decimal point three places to the right. 19. The average adult dose of Phenergan is 50 mg. Using the Young rule for a 10-year-old, what is the correct dosage for the child? a. 23 mg b. 25 mg c. 30 mg d. 35 mg - correct answers.a. 23 mg Young's Rule=Age of child divided by age of a child + 12 x Average adult dose. 20. A 35-lb child is to receive an IM medication. The average adult dose is 75 mg. Using the Clark rule, what dosage should the nurse administer? a. 30.5 mg b. 25.5 mg c. 20.5 mg d. 17.5 mg - correct answers.d. 17.5 mg Clark's Rule = wt (lbs)/ 150 x Average Adult dose 21. Tylenol gr V is ordered. The available tablet is 0.3 g. What dosage should the nurse administer? a. 1 tablet b. 1.5 tablets c. 1/2 tablet d. 2 tablets - correct answers.a. 1 tablet 0.3 grains x 15 = 4.5 grains = 5 grains = 1 tab 1 grain = 60 mg 1 gram = 15 grains 22. Lanoxin 0.125 mg is to be given. The nurse converts the dose to how many grams? a. 1.250 g b. 1250 g c. 0. g d. 0.00125 g - correct answers.c. 0. g 1 gram = 1000 mg 0.125 mg/ 1000 mg x 1 gram = 0. 23. Atropine 0.4 mg is to be given. Ampule is labeled gr 1/150/mL. What dose should the nurse administer? a. 1.5 mL b. 0.25 mL c. 0.5 mL d. 1 mL - correct answers.1 mL 1 grain = 60 mg 0.4 mg / 60 mg x 1 grain = 0.0066 0.0066 grains / 1 grain x 150 mL = 1 24. A 150-lb man is to receive a medication based on milligrams/kilograms. He is to receive 1 mg/kg. What dosage should the nurse administer? a. 50 mg b. 68 mg c. 75 mg d. 80 mg - correct answers.b. 68 mg 2.2 lb = 1 kg 25. 0.5 g of medication is ordered. The label reads 125 mg/mL. What is the correct dose to be administered? a. 1 mL b. 2 mL c. 3 mL d. 4 mL - correct answers.4 mL 1 gram = 1000 mg 0.5 grams x 1000 mg = 500 mg 500 mg / 125 mg = 4 mL 26. What is the main organ that inactivates and metabolizes drugs? a. Spleen b. Liver c. Lungs d. Pancreas - correct answers.b. Liver