Practice Math Quiz with answers

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National University College *

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NSG335

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Chemistry

Date

Dec 6, 2023

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docx

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Uploaded by SargentBoulder7974

Practice Math Quiz 1. Convert 2 ½ mLs to teaspoons. 5 mL = one teaspoon 2.5/5 = 1.5 teaspoon 2. Covert 40 kg to pounds. kg X 2.2 = pounds 40 x 2.2 = 88 lbs. 3. Convert 50 pounds to kg. 50/2.2 = 22.7 kg 4. Convert 3570 grams to kg and round to 10ths place. Divide Grams by 1000 = kg (1 gram = 0.001 kg) First divide 3570 by 1000 = 3.57 kg  3.6 kg 5. You have an order for ibuprofen suspension. It comes in 100 mg/mL. The doctor wants you to give 90 mg. How many mLs will you give? Desired dose X Volume D/H X Volume On hand 90/100 x 5 ml = 4.5 ml 6. The order is amoxicillin 32 mg orally twice per day. The bottle contains 35 mL with a concentration of 125 mg/5 mL. How many days will the bottle last? First: how many mL per dose? D/H X V, then calculate per day. 32/125 x 5 = 1.28 ml 1.28 ml x 2 (doses per day) = 2.56 mL per day Bottle has 35 ml. 35/2.56 = 13.7 days 7. Dilaudid 0.6 mg is ordered. The 1 mL vial contains 2 mg/mL. How many mL will be needed? 0.6/2 = x 1 = 0.3 mL

8. Vancomycin 100 mg IV is ordered every 12 hours to infuse over 90 minutes. The dose in a syringe from pharmacy is labeled 100 mg in 20 mL. Calculate the flow rate in mL/hour. Round to tenths. Volume x (60)min V x 60 Volume is 20 ml. Desired minutes DM 20 x 60 / 90 minutes = 13.3 ml/hour 9. An 11.7 kg child is to receive 20 mL/kg of normal saline IV bolus over 30 minutes. Calculate the flow rate in mL/hour. Round to whole number. 11.7 x 20 = 234 ml (total volume) Volume x (60)min 234 (60) = 14,040/90 = 468 ml/hour Desired Volume 30 10. A 28 kg child is to receive replacement fluid at 50 mL/kg over 4 hours. How many mL will this child receive hourly? 50 x 28 = 1400 mL over 4 hours, 1400/4 = 350 mL per hour 11. Cefaclor oral suspension is ordered for a 44 lb. child. Recommended dosage is 20 mg/kg/day in three divided doses. Information from the label indicates dosage strength is 187 mg/5 mL. How many mL will be needed for a single dose? Round to tenths 44 lbs./2 = 20 kg 20 x 20 = 400 per day 400/3 doses = 133 mg/dose D/H x V = 133/187 x 5 = 3.6 ml 12. The dosage for Digoxin is 0.07mg / kg/day. The child's weight is 7.2 kg. The health care provider prescribes Digoxin to be given twice daily. The nurse prepares how much Digoxin to administer to the child at each dose ? 7.2 x .07/day = 0.5/2 = 0.25 mg per dose 13. Penicillin G 1,000,000 units IM is prescribed for a child with an infection. The medication label reads "1,200,000 units per 2 ml". The nurse has determined that the dose prescribed is safe. The nurse administers how many ml per dose to the child? 1,000000/1,200000 = 1.66 ml  1.6 ml 14. The health care provider's prescription reads " Vancomycin 150 mg IV every 6 hours." The medication label reads" 1 gram (1 g = 1000 mg) and reconstitute with 5 ml of normal saline". The nurse draws up how many ml to administer one dose. D/H x V 150/1000 x 5 = 0.75 ml

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