Order: 1000 mL of D5½NS with 1 ampule of multiple vitamins to infuse over 8 hours
Available: Macrodrip set: 15 gtt/mL
Calculate the IV flow rate in gtt/min.
31
30
32
3.0
The Correct Answer is A
Given:
Volume of fluid: 1000 mL
Infusion time: 8 hours
Drop factor: 15 gtt/mL
Formula:
Flow rate (gtt/min) = (Volume (mL) / Time (hr)) x Drop factor (gtt/mL) / 60 min/hr
Step 1: Calculate the infusion rate in mL/hr:
Infusion rate (mL/hr) = Volume (mL) / Time (hr)
Infusion rate (mL/hr) = 1000 mL / 8 hr
Infusion rate (mL/hr) = 125 mL/hr
Step 2: Calculate the flow rate in gtt/min:
Flow rate (gtt/min) = (Infusion rate (mL/hr) x Drop factor (gtt/mL)) / 60 min/hr
Flow rate (gtt/min) = (125 mL/hr x 15 gtt/mL) / 60 min/hr
Flow rate (gtt/min) = 1875 gtt/hr / 60 min/hr
Flow rate (gtt/min) = 31.25 gtt/min
Step 3: Round to the nearest whole number:
Flow rate (gtt/min) ≈ 31 gtt/min
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A) Age, weight, and sex:
Age, weight, and sex are key factors that significantly affect an individual's physiological response to drug use. These factors influence how the body absorbs, distributes, metabolizes, and excretes medications. For example, older adults may have slower metabolism and decreased renal function, requiring dosage adjustments. Body weight can affect the distribution of drugs, with heavier individuals potentially requiring higher doses for the same therapeutic effect. Sex also plays a role, as men and women can have differences in drug absorption and metabolism due to hormonal and physiological variations.
B) Marital status and family history:
Marital status and family history do not directly affect the physiological response to medications in the way that biological factors like age, weight, and sex do. While family history may provide insights into genetic predispositions for certain diseases, it does not significantly impact the pharmacodynamics of most medications. Marital status is largely a social factor and does not influence drug metabolism or effects.
C) Diet and exercise:
Diet and exercise can influence drug absorption and metabolism to some extent, but they are not as direct or universal in their impact as factors like age, weight, and sex. For example, high-fat meals can delay the absorption of certain medications, and exercise can affect the metabolism of some drugs. However, these are secondary factors compared to biological characteristics such as age and weight that directly alter how the body processes drugs.
D) Socioeconomic status and education level:
While socioeconomic status and education level can influence medication adherence and access to healthcare, they do not directly affect the body's physiological response to drugs. These factors may affect how a patient manages their health or accesses medical care, but they do not influence the pharmacokinetics or pharmacodynamics of drugs in the body.
Correct Answer is A
Explanation
Given:
Value in grams: 5,524 g
To convert grams to kilograms, we need to divide the value by 1000.
Step 1: Divide the value by 1000:
5,524 g / 1000 = 5.524 kg
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