Chapter 03: Making Drug Dosing Safer Test Bank Introductory Clinical Pharmacology 12th Edition by Susan M Ford

Chapter 03: Making Drug Dosing Safer Introductory Clinical Pharmacology 12th Edition by Susan M Ford 1. A client has been taking warfarin 5 mg daily. After a check of the client's INR, the health care provider wants to increase the client's dose to 7.5 mg on Wednesdays and continue 5 mg on the other six days. The client has warfarin 5-mg tablets on hand. The nurse would instruct the client to take tablets on Wednesdays. Answer: 1.5 Rationale: The basic formula method for calculating dosages is taking the dose desired divided by the dose on hand. This will give the dose to be administered: 7.5 mg/5 mg = 1.5 tablets Question Format: Fill in the Blank Chapter: 3 Learning Objective: 4 Cognitive Level: Apply Client Needs: Physiological Integrity: Pharmacological Therapies Integrated Process: Clinical Problem-solving Process (Nursing Process) Reference: p. 39, Basic Formula Method of Dosage Calculation 2. A health care provider writes an order for a client to receive levothyroxine 0.2 mg, but 100-mcg tablets are supplied. The nurse would administer tablets to the client. Answer: two Rationale: 1000 mcg/1 mg = 100 mcg/X mg X = 100/1000 X = 0.1 mg 0.2 mg/0.1 mg = 2 Question Format: Fill in the Blank Chapter: 3 Learning Objective: 4 Cognitive Level: Apply Client Needs: Physiological Integrity: Pharmacological Therapies Integrated Process: Clinical Problem-solving Process (Nursing Process) Reference: p. 40, Ratio and Proportion Method by Hand 3. A client weighs 56 kg. The client weighs lb. Answer: 123.2 Rationale: Kilograms must be converted to pounds using the conversion factor of 2.2 pounds in 1 kg. Therefore, 56*2.2 = 123.2. Question Format: Fill in the Blank Chapter: 3 Learning Objective: 4 Cognitive Level: Apply Client Needs: Safe and Effective Care Environment: Safety and Infection Control Integrated Process: Clinical Problem-solving Process (Nursing Process) Reference: p. 45, Drug Dosages Based on Weight 4. The nurse is checking the dosage of a drug ordered in mg/kg. A client weighs 275 lb. The client weighs kg. Answer: 125 Rationale: Pounds must be converted to kilograms using the conversion factor of 2.2 lb in 1 kg. Therefore, 275/2.2 = 125. Question Format: Fill in the Blank Chapter: 3 Learning Objective: 4 Cognitive Level: Apply Client Needs: Safe and Effective Care Environment: Safety and Infection Control Integrated Process: Clinical Problem-solving Process (Nursing Process) Reference: p. 45, Drug Dosages Based on Weight 5. A client has a temperature of 39°C. The client's temperature is °F. Answer: 102.2 Rationale: To convert from Celsius to Fahrenheit, the formula F = 9/5 C + 32 is used. Therefore, 9/5*39 = 70.2. 70.2 + 32 = 102.2 Question Format: Fill in the Blank Chapter: 3 Learning Objective: 4 Cognitive Level: Apply Client Needs: Safe and Effective Care Environment: Safety and Infection Control Integrated Process: Clinical Problem-solving Process (Nursing Process) Reference: p. 45, Temperatures 6. When assessing a client's temperature, the nurse finds it to be 99°F. The client's temperature is °C. Answer: 37.2 Rationale: To convert Fahrenheit to Celsius, the formula C = 5/9 (F – 32) is used. Therefore, 99 – 32 = 67. 67 *5/9 = 37.2 Question Format: Fill in the Blank Chapter: 3 Learning Objective: 4 Cognitive Level: Apply Client Needs: Safe and Effective Care Environment: Safety and Infection Control Integrated Process: Clinical Problem-solving Process (Nursing Process) Reference: p. 45, Temperatures 7. Amoxicillin 250 mg is ordered for a child. The pharmacy supplies the drug in a suspension form. The label reads 500 mg/5 mL. The nurse would administer mL. Answer: 2.5 Rationale: 500 mg/5 mL = 250 mg/X mL 500 X = 1250 X = 2.5 Question Format: Fill in the Blank Chapter: 3 Learning Objective: 4 Cognitive Level: Apply Client Needs: Physiological Integrity: Pharmacological Therapies Integrated Process: Clinical Problem-solving Process (Nursing Process) Reference: p. 42, Dose Calculations With Liquids 8. A client is to receive 0.5 mg of a drug parenterally. The drug is available in a 2-mg/mL vial. The nurse would administer mL.