Ballington Chapter 6
A patient has a prescription for sucralfate 1 g po AC & HS. The liquid formulation has 500 mg/tsp. Using dimensional analysis, how many milliliters should the patient take per dose?
10 mL
Which fraction is the largest?
36/48
You need to draw up a syringe with 50 mcg of cyanocobalamine. The manufactured product is 1,000 mcg/mL. If you need to make a dilution with a final concentration of 1,000 mcg/5 mL, how much sterile water will you add to the original product and how much of the new product will you draw up into a syringe?
4 mL; 0.25 mL
Lactulose syrup is available in pint (480 mL) bottles. The patient needs to take 30 mL po BID. How many pints need to be dispensed for a month's supply?
4 pint
When converting a number to a larger unit, move the decimal point to the _______________
left.
In relation to water, a substance with a specific gravity of 2.9 would be
thicker than water.
A mother calls and says the refrigerator with her child's insulin in it is reading 25ºF. Calculate the temperature in degrees Celsius
-3.9ºC
Regular insulin is available as 100 units/mL. You need to make a solution for a continuous insulin drip with a concentration of 1 unit/mL for a final volume of 50 mL. How much insulin will need to be added to the normal saline solution?
0.5 mL
You need to mix cefazolin 1 gm lyophilized powder with sterile water for a final concentration of 1 gram in 4 mL. You use 3.4 mL of sterile water, what is the powder volume?
0.6 mL
A patient needs to take amoxicillin every 8 hours starting at 6 a.m. At what times should the medication be taken?
0600; 1400; 2200
Convert the dosage of pramipexole, 0.125 mg, to a fraction.
1/8mg
You need to make a 0.25% hydrocortisone cream using 2% hydrocortisone cream and Eucerin®. How much Eucerin® will you need to make 4 ounces?
105 g
Calcium has an atomic weight of 40.1 g. How many mEq in 500 mg of calcium?
12.5 mEq
Calculate the molecular weight of MgSO 4. (atomic weight of Magnesium = 24.31 g, Sulfur = 32.1 g, Oxygen = 16 g)
120.41 g
A patient takes one-half teaspoonful at breakfast, three-quarters teaspoonful at lunch, and 1 teaspoon at dinner of a liquid antacid. How many teaspoons does he take a day?
2 and one-quarter
The antipyretic dose of ibuprofen for a child is 10 mg/kg po q6h. What is the appropriate dose of a 100 mg/tsp ibuprofen suspension for a 4-year-old who weighs 45 pounds?
2 tsp
If the ratio of diphenhydramine is 1:5 in a 100 mL solution, what percent of the solution is diphenhydramine?
20%
You need to draw up oral syringes with 12.5 mg of diphenhydramine. The oral solution is available as 25 mg/10 mL. How many oral syringes can be filled from 4 ounces of solution?
24 oral syringes
You are asked to create a clonidine 0.025mg tablet from a clonidine 0.1 mg tablet. What percentage of the original tablet will you use?
25%
A patient needs a 120 g jar of 2.5% hydrocortisone in petrolatum. How much hydrocortisone powder do you need to compound the ointment?
3 g
If a patient receives three 1-liter bags of normal saline in a day, how many milliliters will they receive?
3,000 mL
A patient weighs 165 pounds and the physician prescribes a loading dose of gentamicin of 6 mg/kg. How many milligrams will be ordered?
450 mg
Which value is the largest?
5 kilograms
How many milligrams does 1 mEq of NaCl weigh? (Sodium = 16 g, Chloride = 35.5 g, valence = 1)
51.5 mg
A prescription is written for clindamycin 150 mg, Sig : 2 po q6h, Disp: LVI. How many capsules should you dispense?
56
Convert 0500, 1700, and 2100 to Greenwich Mean Time.
5:00 a.m., 5:00 p.m., 9:00 p.m.
Match the unit of measure with its equivalent 1 gr 1 lb 1 tbsp 960 mL 30 mL 2.2 lb 1 L
65 mg 454 g 15 mL 1 qt 1 fl oz 1 kg 1,000 mL
A 2-year-old child with a body surface area of 0.45 m 2 is prescribed methotrexate maintenance therapy for acute lymphoblastic leukemia. The dose is 20 mg/m 2 by mouth once a week. What is the weekly dose for this patient?
9 mg
The metric system is a standardized system for pharmaceutical measuring unlike the apothecary, avoirdupois, and household systems which are ____________________
All of the choices are correct.
A prescription for amoxicillin 125 mg/tsp oral suspension has the sig: ss tsp po tid. What directions should be printed on the label?
Take one-half teaspoon by mouth three times a day.
When compounding together two different manufactured products, what is the term for the product's last date for recommended use?
beyond-use date
What dosage form is commonly expressed as a weight-in-weight concentration?
cream
Which of the following units of measure is used in the apothecary system?
grain
When writing a number less than one, it should __________________
have a leading zero