The healthcare provider has ordered 1000 mL of 0.9% sodium chloride to be administered intravenously over 5 hours. The drop factor on the tubing is 15 drops/mL. How many milliliters per hour will you administer and how many drops per minute?
250 mL/hr and 45 drops/min
200 mL/hr and 45 drops/min
200 mL/hr and 50 drops/min
250 mL/hr and 50 drops/min
The Correct Answer is C
To calculate the rate of administration in milliliters per hour (mL/hr):
First, find the total volume to be infused: 1000 mL
Next, divide the total volume by the total time in hours: 1000 mL ÷ 5 hours = 200 mL/hr
Therefore, you will administer the solution at a rate of 200 mL/hr.
To calculate the rate of administration in drops per minute (drops/min):
First, find the total drops: 1000 mL × 15 drops/mL = 15,000 drops
Next, divide the total drops by the total time in minutes: 15,000 drops ÷ (5 hours × 60 minutes/hour) = 50 drops/min
Therefore, you will administer the solution at a rate of 200 mL/hr and 50 drops/min.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["10"]
Explanation
To administer the correct dose of valproic acid, which is 500 mg, when the available oral solution concentration is 250 mg per 5 mL, the nurse needs to calculate the volume of the solution required.
The calculation is as follows: (500 mg) / (250 mg/5 mL) = 2 x 5 mL = 10 mL.
Therefore, the nurse should administer 10 mL of the valproic acid oral solution to deliver a dose of 500 mg.
Correct Answer is ["B","C","E"]
Explanation
A. At high doses, to treat anaphylaxis: Dopamine is not used to treat anaphylaxis. Anaphylaxis is typically managed with medications such as epinephrine, antihistamines, and corticosteroids.
B. At high doses, to increase cardiac output: Dopamine is a medication commonly used in the treatment of shock, particularly in cases of hypotension. At higher doses, dopamine acts as a positive inotrope and increases cardiac contractility, thereby improving cardiac output and increasing blood pressure.
C. At low doses, to cause increased blood flow to the kidneys: At lower doses, dopamine primarily acts on dopaminergic receptors in the renal vasculature, leading to vasodilation of the renal blood vessels and increased renal perfusion. This can help improve renal blood flow and urine output, making it beneficial in cases of renal hypoperfusion or acute kidney injury.
D. At low doses, to treat anaphylaxis: Dopamine is not used to treat anaphylaxis at any dose. Anaphylaxis is managed with medications such as epinephrine, which acts on multiple receptors to reverse the systemic effects of the allergic reaction.
E. To cause vasoconstriction and increase blood pressure: Dopamine can also cause vasoconstriction, particularly at higher doses. This effect is mediated through its action on alpha-adrenergic receptors, leading to peripheral vasoconstriction and an increase in systemic vascular resistance, which in turn helps increase blood pressure.
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