Download presentation

Presentation is loading. Please wait.

Published byCamden Hutcheon Modified over 3 years ago

1
Chapter 5

2
Units Measures the drug in terms of action No symbol for units

3
Sample problems - Answers Express the unit dosage in numerals and symbols: 1. Three hundred and fifty thousand units. A. 350,000 units 2. Twenty-five hundred units. A. 25,000 units 3. Sixty units. A. 60 units

4
Percentage (%) measures Percentage means parts per hundred. No space between the # and the % 1% not 1 % The greater the percentage strength, the stronger the solution or ointment.

5
Sample Question Which is stronger, a 3% solution or a 6% solution? A. 3% B. 6%

6
Which of the following is the correct abbreviation for “units”? A. Un B. U C. UN D. Ut E. None of the above

7
Percentage (%) measures In solution, percent represents the number of grams of drug per 100 mL of solution. 100 mL of a 1% solution will contain 1 g of drug

8
Sample Questions 100 mL of a 1% solution will contain how many grams of drug? 1 g 100 mL of a 2.5% solution will contain how many grams of drug? 2.5 g 100 mL of a 10% solution will contain how many grams of drug? 10 g

9
100 mL of a 5% solution will contain how many grams of drug? A.1 g B.5 g C.10 g D.100 g E.None of the above

10
But what if it is not 100 mL Mrs. Keele?

11
Convert % to fraction

12
What is the fraction of 7% A. 70 B. 7 C. 0.7 D. 0.07 E. 0.007

13
What is the fraction of 60% A. 60 B. 6 C. 0.6 D. 0.06 E. None of the above

15
250 mL of a 5% solution will contain how many grams of drug?

16
325 mL of a 6% solution will contain how many grams of drug? A.18.5 g B.6 g C.16.25 g D.19.5 g E.None of the above

17
120 mL of a 5.4% solution will contain how many grams of drug? A. 6.45 g B. 64.5 g C. 645 g D. None of the above E. I’m so lost I have no idea!

18
260 mL of a 3% solution will contain how many grams of drug? A. 0.78 g B. 7.8 g C. 78 g D. 780 g E. None of the above

19
Milliequivalent (mEq) measures Number of grams of drug contained in 1 mL of a solution Who cares? Not you What do I need to know -mEq = milliequivalent

20
Sample Questions: Express the milliequivalent dosages in numbers and symbols: 1. Fifteen milliequivalents A. 15 mEq 2. Twenty-five milliequivalents A. 25 mEq 3. Forty-two milliequivalents A. 42 mEq

21
Ratio Measures Parts of drug per parts of solution 1:500 1 part drug to 500 parts solution 1:20 1 part drug to 20 parts solution A solution that is 1 part drug and 10 parts solution is written: 1:10

22
If I take 1 bottle of alcohol & add it to 2 bottles of soda 1:2 ratio How drunk would one glass of this spiked punch make you?

23
If I take 1 bottle of alcohol & add it to 5 bottles of soda 1:5 ratio How drunk would one glass of this spiked punch make you? Which would make you more drunk 1:2 or 1:5?

24
Ratio Measures The less solution a drug is dissolved in, the stronger the solution. A ratio of 1:2 is much stronger than 1:5 A ration of 1:5 is much stronger than a 1:500

25
Identify the strongest solution: A) 1:20 B) 1:200 C) 1:2

26
Identify the strongest solution: A) 1:50 B) 1:20 C) 1:100

27
Identify the strongest solution: A) 1:1000 B) 1:4000 C) 1:3000

28
Household & Apothecary measures Ounce Abbreviation: oz

29
Household & Apothecary measures

31
Teaspoon Abbreviation: t, TSP, tsp Metric equivalent: 5 mL So 1 tsp = 5 mL How many milliliters in 3 tsp? 15 mL (3 tsp x 5 mL = 15 mL)

32
Household & Apothecary measures Drop Abbreviation: gtt (gtts) Metric equivalent: 1 mL So 1 gtt = 1 mL How many milliliters in 3 gtts? 3 mL (3 x 1 = 3)

33
Household & Apothecary measures Grain Abbreviation: gr Metric equivalent: 60 mg 1 gr = 60 mg How many milligrams in 3 gr? 180 mg (3 x 60 = 180) (For grains see page 306 of your text book)

34
How many mL in 5 teaspoons? A. 5 mL B. 10 mL C. 15 mL D. 25 mL E. None of the above

35
How many mL in 25 drops? A. 25 mL B. 50 mL C. 75 mL D. 100 mL E. None of the above

36
The doctor says to give 2 oz, but you only have a mL cup. How much do you give in mL? A. 2 mL B. 15 mL C. 30 mL D. 60 mL E. None of the above

37
How many milligrams in 3 grains? A. 50 mg B. 100 mg C. 150 mg D. 200 mg E. None of the above

38
How many milliliters in 1 tablespoon? A. 5 mL B. 10 mL C. 15 mL D. 25 mL E. None of the above

39
True / False: A 40% solution is stronger than a 30% solution. A. True B. False

40
True / False: A 5% ointment is stronger than a 2% ointment. A. True B. False

41
True / False: 100mL of a 3% solution will contain 30 grams of drug. A. True B. False

42
2.8 mL of a 5.7% solution will contain how many grams of drug? (Round to the nearest tenth) A. 2.8 g B. 5.7 g C. 0.1 g D. 0.2 g E. None of the above

Similar presentations

OK

Systems of Measure 1. Avoirdupois System – French for goods of weight (goods sold by weight) – Based on the system of weights where 16 ounces equals one.

Systems of Measure 1. Avoirdupois System – French for goods of weight (goods sold by weight) – Based on the system of weights where 16 ounces equals one.

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on revolt of 1857 causes Ppt on economic order quantity model Ppt on ready to serve beverages and more store Ppt on bond length of hbr Ppt on bodybuilding Ppt on national parks and sanctuaries Ppt on limits and continuity ppt Ppt on hong kong tourism Ppt on various means of transport and communication and their uses Ppt on power generation by coal