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33. A drug rapidly distributes in total body water and has an elimination half-life of 8 hours. In a patient who weighs 80 kg (176 lb; total body water of 50 L), an intravenous drip is started that will maintain a drug concentration in plasma of 20 mg/L at steady state. The time it will take (in hours) from the start of the intravenous drip for plasma drug concentration to reach 18 mg/L (90% of the steady state value) is closest to which of the following? A) 8 B) 16 OC) 32 OD) 64 OE) 128

33. A drug rapidly distributes in total body water and has an elimination half-life of 8 hours. In a patient who weighs 80 kg (176 lb; total body water of 50 L), an intravenous drip is started that will maintain a drug concentration in plasma of 20 mg/L at steady state. The time it will take (in hours) from the start of the intravenous drip for plasma drug concentration to reach 18 mg/L (90% of the steady state value) is closest to which of the following? A) 8 B) 16 OC) 32 OD) 64 OE) 128

Phlebotomy Essentials
Phlebotomy Essentials
6th Edition
ISBN:9781451194524
Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Chapter1: Phlebotomy: Past And Present And The Healthcare Setting
Section: Chapter Questions
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33. A drug rapidly distributes in total body water and has an elimination half-life of 8 hours. In a patient who weighs 80 kg (176 lb; total body water of 50 L), an intravenous drip is started that will maintain a drug concentration in plasma of 20 mg/L at steady state. The time it will take (in hours) from the start of the intravenous drip for plasma drug concentration to reach 18 mg/L (90% of the steady state value) is closest to which of the following? CO A) 8 B) 16 C) 32 D) 64 OE) 128
Transcribed Image Text:33. A drug rapidly distributes in total body water and has an elimination half-life of 8 hours. In a patient who weighs 80 kg (176 lb; total body water of 50 L), an intravenous drip is started that will maintain a drug concentration in plasma of 20 mg/L at steady state. The time it will take (in hours) from the start of the intravenous drip for plasma drug concentration to reach 18 mg/L (90% of the steady state value) is closest to which of the following? CO A) 8 B) 16 C) 32 D) 64 OE) 128
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