A doctor orders nine units /kg/hr for a Heparin infusion. The patient weighs 76 kg. You're supplied with a Heparin bag that reads 50 untis/mL. How many mL/hr will you administer? |Round your answer to the nearest tenths)
13 mL/hr
13.66 mL/hr
13.6 mL/hr
13.7 mL/hr
The Correct Answer is D
Given:
Ordered dose of Heparin: 9 units/kg/hr
Patient weight: 76 kg
Concentration of Heparin: 50 units/mL
Step 1: Calculate the total dose of Heparin:
Total dose (units/hr) = Ordered dose (units/kg/hr) x Patient weight (kg)
Total dose (units/hr) = 9 units/kg/hr x 76 kg
Total dose (units/hr) = 684 units/hr
Step 2: Calculate the infusion rate in mL/hr:
Infusion rate (mL/hr) = Total dose (units/hr) / Concentration (units/mL)
Infusion rate (mL/hr) = 684 units/hr / 50 units/mL
Infusion rate (mL/hr) = 13.68 mL/hr
Step 3: Round to the nearest tenth:
Infusion rate (mL/hr) ≈ 13.7 mL/hr
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Given:
Volume of fluid: 30 mL
Infusion time: 20 minutes
Step 1: Convert infusion time to hours:
Infusion time (hr) = 20 min / 60 min/hr
Infusion time (hr) = 0.33 hr
Step 2: Calculate the infusion rate in mL/hr:
Flow rate (mL/hr) = Volume (mL) / Infusion time (hr)
Flow rate (mL/hr) = 30 mL / 0.33 hr
Flow rate (mL/hr) = 90.90909091 mL/hr
Step 3: Round to the nearest whole number:
Flow rate (mL/hr) ≈ 90 mL/hr
Correct Answer is C
Explanation
A) High protein diet:
While a healthy diet is essential for managing heart disease, a high-protein diet is not specifically recommended as a nonpharmacologic control for heart disease. A balanced diet that includes adequate protein, healthy fats, and low saturated fats, while being high in fruits, vegetables, and whole grains, is more beneficial for heart health.
B) Decrease exercise:
Decreasing exercise is not recommended for heart disease management. In fact, regular physical activity is a key aspect of preventing and managing heart disease. Moderate exercise, such as walking, swimming, or cycling, helps improve cardiovascular health by lowering blood pressure, improving cholesterol levels, and reducing stress.
C) Smoking cessation:
Smoking cessation is one of the most important nonpharmacologic strategies for managing heart disease. Smoking is a major risk factor for heart disease because it damages the blood vessels, increases blood pressure, and promotes the formation of blood clots. Quitting smoking can significantly reduce the risk of heart disease, improve circulation, and lower the risk of heart attack and stroke.
D) Increase water intake:
While staying hydrated is important for overall health, there is no specific evidence to suggest that increasing water intake directly controls heart disease. However, maintaining proper hydration supports kidney function and circulatory health, and can assist with managing blood pressure.
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