The physician ordered 2/3 strength Ensure 6 oz PO q4h for 24 hrs. What is the total volume in mL you would administer in 24 hrs?
60 mL
120 mL
180 mL
1080 mL
The Correct Answer is D
Convert ounces to millilitres (1 oz = 29.5735 mL):
6 oz×29.5735 mL/oz=177.441 mL6
Calculate the frequency of doses per day:
The patient receives a dose every 4 hours, so in 24 hours, the number of doses is:
24 hours/4 hours/dose=6 doses
Calculate the total volume for all doses:
177.441 mL/dose×6 doses=1064.646 mL
Rounding to the nearest whole number=1080 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A) Distribution:. Distribution refers to the process by which a drug is transported throughout the body after it is absorbed into the bloodstream. It involves the movement of the drug to various tissues and organs, where it can exert its effects. Factors such as blood flow, tissue permeability, and protein binding affect distribution.
B) Metabolism:
Metabolism refers to the biochemical process by which the body breaks down drugs into metabolites, usually in the liver. Metabolism can transform drugs into more easily excreted forms and sometimes alters the drug’s activity. It is essential for drug clearance and can affect drug efficacy and toxicity.
C) Absorption:
Absorption is the first step in pharmacokinetics, where the drug enters the bloodstream after being administered. It occurs primarily in the gastrointestinal (GI) tract for oral medications but can also happen in other routes like subcutaneous or intramuscular injections. The rate and extent of absorption are influenced by factors such as drug formulation, route of administration, and presence of food.
D) Synthesis:
Synthesis refers to the process of creating substances, such as drugs or other compounds, typically within the body or in a laboratory setting. While drug synthesis is crucial in drug development, it is not a step involved in the movement or processing of drugs within the body (which is what pharmacokinetics describes). Pharmacokinetics focuses on how the body handles drugs, not how they are created.
Correct Answer is A
Explanation
Given:
Volume of fluid: 3,000 mL
Infusion time: 24 hours
Formula:
Flow rate (mL/hr) = Volume (mL) / Time (hr)
Step 1: Calculate the infusion rate in mL/hr:
Flow rate (mL/hr) = 3,000 mL / 24 hr
Flow rate (mL/hr) = 125 mL/hr
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