Order: Metoprolol 3.5 mg IV push
On hand: 1 mg/mL vials
How many milliliters will the nurse draw up to administer this dose?
No answer is provided
No answer is too low
No answer is too high
3.5
The Correct Answer is D
Choice A reason: This choice is incorrect because it does not provide a numerical answer to the question.
Choice B reason: This choice is incorrect because it does not provide a specific answer to the question. It also implies that there is an answer that is lower than the correct one, which is not true.
Choice C reason: This choice is incorrect because it does not provide a specific answer to the question. It also implies that there is an answer that is higher than the correct one, which is not true.
Choice D reason: This choice is correct because it is the result of dividing the ordered dose (3.5 mg) by the concentration of the vial (1 mg/mL). The formula for calculating the volume to be drawn up is:
Volume = Dose/Concentration
Therefore, the volume to be drawn up is:
Volume = 3.5 mg/(1 mg/mL) = 3.5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","E"]
Explanation
Choice A reason: Excessive urination is a sign of hyperglycemia because the body tries to flush out the excess glucose in the blood through the urine. This can also lead to dehydration and electrolyte imbalance.
Choice B reason: Excessive thirst is a sign of hyperglycemia because the body loses fluid and becomes dehydrated due to frequent urination. The thirst mechanism is activated to replenish the fluid loss.
Choice C reason: Diaphoresis is not a sign of hyperglycemia, but rather a sign of hypoglycemia (low blood sugar). Hypoglycemia can cause sweating, shakiness, anxiety, and confusion.
Choice D reason: Atrial fibrillation is not a sign of hyperglycemia, but rather a possible complication of hyperglycemia. Hyperglycemia can damage the blood vessels and the heart, increasing the risk of arrhythmias, such as atrial fibrillation.
Choice E reason: Excessive hunger is a sign of hyperglycemia because the body is unable to use the glucose in the blood for energy. The cells are starved of fuel, and the hunger signal is triggered to stimulate food intake..
Correct Answer is ["125"]
Explanation
To calculate the rate at which the nurse should set the IV pump to deliver dextrose 5% in 0.45% sodium chloride over 24 hours, we can use the following steps:
Given:
Total IV fluid volume: 3 L
Infusion duration: 24 hours
Step 1: Convert the total IV fluid volume from liters (L) to milliliters (mL)
Total volume = 3 L × 1000 mL/L
Total volume = 3000 mL
Step 2: Calculate the rate of infusion per hour
Rate = Total volume / Infusion duration
Rate = 3000 mL / 24 hr
Rate ≈ 125 mL/hr
Rounding to the nearest whole number:
Rate ≈ 125 mL/hr
Therefore, the nurse should set the IV pump to deliver approximately 125 mL/hr for the infusion of dextrose 5% in 0.45% sodium chloride over 24 hours.
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