Math Practice Final
Percents, Proportions and Ratios
1.The decimal form of 0.75% is.0075
2.The decimal form of 345% is3.45
3.The percent name for75%
4.The percent name foris 20%
5.The percent name foris 0.4%
6.The percent name foris112.5%
7.The fractionis closest to what percent?25%
8. A school has 750 pupils. 56% are boys. How many boys are there in the school?420
9. Jacki scored 12 goals in 16 attempts in soccer this season. What percent of her attempts were scored as goals?75%
10. There are 35 chairs in a room, 5 are broken. What is the proportion of unbroken chairs (as a fraction in its simplest form)?1/7
11. Zoe can read 8 pages in 14 minutes. At this rate, how long will it take them to read a chapter that has 12 pages?8/14 = x/12 about 7 minutes
12. 296 is 16% of what number?16/100 = 296/x = 1850
13. What percent of 84 is 21?x/100 = 21/84 = 25%
14. 24 is 15% of what number?15/100 = 24/x = 160
- Solve 11:121 :: 3:x.33
- Solve the proportion forx.
= 4
Metric Conversions
1. 60 mg = _____0.06______g
2. 300 mg = ____30,000______g
3. 0.2 mg = ____.0002______g
4. 1.2 g = ______1200______mg
5. 0.0025 kg = ____2.5______g
6. 0.065 g = ______65______mg
7. 0.005 L = _____5______mL
8. 2 kg = ______2,000______g
9. 56.08 cc = _____56.08______mL
10. 79,200 mL = ___79.2______L
11. 1 L =______1,000______mL
12. 1 g = _____1,000______mg
13. 1 mL = _____0.001______L
To obtain credit for dosage calculation questions, the student must always do the following:
- Correctly label the answer.
- Round the answer to the appropriate amount that can be administered in the clinical area. For example:
- < 1mL round to the correct hundredths place.
- > 1mL round to the correct tenth place.
- Round an IV pump answer to the correct tenth place.
- Round weight related answers to the hundredths.
- Pediatric questions should be rounded to the hundredths.
1. Cytoxan 25 mg tablets available. Order: Cytoxan 50 mg p.o. q.d.
Give: ______2______tablet(s)
2. Zaroxolyn 5 mg tablets available. Order: Zaroxolyn 7.5 mg p.o. b.i.d.
Give: _____1.5______tablet(s)
3. Coumadin 5 mg p.o. q.d. ordered. Coumadin 2.5 mg tablets available.
Give: ______2______tablet(s)
4. The doctor orders 100 mg Dilantin oral suspension t.i.d. for your patient. The label
says Dilantin 125 mg/5 mL. How many milliliters should you give?4 mLtid or 12mL qd
5. Order: Demerol syrup 75 mg p.o. q.4h p.r.n. pain
Supply: Demerol syrup 50 mg per 5 mL
Give: ______7.5______mL
6. Order: Tylenol 0.5 g p.o. q.4h p.r.n. pain
Supply: Tylenol 500 mg in 5 mL
Give: ______1______t
7. Order: Promethazine HCl 25 mg p.o. h.s. pre-op
Supply: Phenergan Plain (promethazine HCl) 6.25 mg per teaspoon
Give: ______20______mL
8. Order: Pathocil 125 mg p.o. q.6h a.c.
Supply: Pathocil suspension 62.5 mg per 5 mL
Give: ______2______t
9. Order: Erythromycin suspension 600 mg p.o. q.6h
Supply: Erythromycin 400 mg/5 mL
Give: _____7.5______mL
10. Order: Ceclor suspension 225 mg p.o. b.i.d.
11. Supply: Ceclor suspension 375 mg per 5 mL
Give: ______3______mL
12. The order reads ibuprofen 40 mg p.o. q.6h p.r.n., temp > 101.6º. The 7-montholdbaby weighs 17 ½ lb and has a temp of 102.6º. The drug reference manualstates “Children: 6 months-12 years: Temperature < 102.5ºF - 5 mg/kg/dose;temperature> 102.5ºF - 10 mg/kg/dose; given every 6-8 hr; Maximum dailydose: 40 mg/kg/day. Is the order safe?Yes
13. Order: Keflex 125 mg p.o. q.6h for a 44 lb child. If the recommended dosage is
14.mg/kg/day in four divided doses, is this a dosage safe? ____yes_____ Keflex isavailable in an oral suspension of 250 mg per 5 mL. If the dosage is safe, give_____2.5______mL/dose.
15. How many days will an 8-ounce bottle of medication last, if an adult takes the maximum dose of 2 tsp. every 8 hours?48 tsp in 8 oz. 24/8=3, 3X2=6, 48/6=8, It will take 8 days to take the medicine (6 tsp=1 oz)
16. You weigh an object that weighs 90 kg. How many pounds is this?40.91kg
17. Your weight is 55 kilograms. How many pounds do you weigh? 121lbs
18. The temperature today is -10° F. What is the temperature in Celsius?
°C x 9/5 + 32 = °F
(°F- 32) x 5/9 = °C
10 X 9/5 + 32 =