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Test Bank Henke s Med Math Dosage Calculation Preparation and Administration 9th Edition

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Test Bank Henke s Med Math Dosage Calculation Preparation and Administration 9th Edition MULTIPLE CHOICE 1. A patient/client was instructed to drink 25 oz of water within 2 hours but was only able to drink 15 oz. What portion of the water remained? a. 2/5 b. 3/5 c. 2/25 d. 25/25 ANS: A Feedback: Subtract the quantity of water the client drank (15 oz) from the total available quantity (25 oz): 10 oz remain. To determine the portion of the water that remains, create a fraction by dividing 10 oz (remaining portion) by 25 oz (total portion). Therefore, 10 divided by 25 = 10/25. To reduce fractions, find the largest number that can be divided evenly into the numerator and the denominator (5). Ten divided by 5 (10/5) = 2; 25/5 = 5. The fraction 10/25 can be reduced to its lowest terms of 2/5. Format: Multiple Choice Chapter: 1 Client Needs: Physiological Integrity: Basic Care and Comfort Cognitive Level: Apply Difficulty: Moderate Page and Header: 2, Dividing Whole Numbers; 3, Fractions Integrated Process: Teaching/Learning Objective: 1, 2 2. A patient/client was prescribed 240 mL of Ensure by mouth as a supplement but consumed only 100 mL. What portion of the Ensure remained? a. 5/12 b. 7/12 c. 100/240 d. 240/240 ANS: B Feedback: Subtract the quantity of Ensure the client consumed (100 mL) from the total available quantity (240 mL): 140 mL remain. To determine the portion of the Ensure that remains, create a fraction by dividing 140 mL (remaining portion) by 240 mL (total portion). Therefore, 140 divided by 240 = 7/12. To reduce fractions, find the largest number that can be divided evenly into the numerator and the denominator (20); 140 divided by 20 (140/20) = 7; 240/20 = 12. The fraction 140/240 can be reduced to its lowest terms of 7/12. Format: Multiple Choice Chapter: 1 Client Needs: Physiological Integrity: Basic Care and Comfort Cognitive Level: Apply Difficulty: Moderate Page and Header: 2, Dividing Whole Numbers; 3, Fractions Integrated Process: Teaching/Learning Objective: 1, 2 ______________________________________________________________________________________________ 1 | P a g e www.PlusBay.Plus Maggy WWW.TBSM.WS 3. A patient/client consumed oz. of coffee, 2/3 oz. of ice cream, and oz. of beef broth. What is the total number of ounces consumed that should be documented for the patient/client? a. 3 3/4 b. 4 5/12 c. 4 2/3 d. 4 4/9 ANS: B Feedback: Add the amount of ounces consumed. First, change any mixed number to a fraction by multiplying the whole number by the denominator and then adding that total to the numerator. For the coffee, 4  2 = 8 + 1 = 9/4; for the beef broth, 2  1 = 2 + 1 = 3/2. Then add: 9/4 + 2/3 (ice cream) + 3/2. When fractions have different denominators, find the least common denominator (LCD). For 2, 3, and 4, the LCD = 12. Rewrite each fraction using the LCD; divide the LCD by the denominator of each fraction and then multiply that result by the numerator of the fraction. The new fractions to be added are 27/12 (coffee), 8/12 (ice cream), and 18/12 (beef broth). After conversion of the fractions, the numerators are added together and the fraction is reduced to the lowest terms. Format: Multiple Choice Chapter: 1 Client Needs: Physiological Integrity: Basic Care and Comfort Cognitive Level: Analyze Difficulty: Difficult Page and Header: 2, Multiplying Whole Numbers; 3, Fractions Integrated Process: Communication and Documentation Objective: 1, 2.

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