IV calculations: (rate-mL/h and gtt/min)
- IV rate calculations will be rounded to nearest whole number.
Adult calculations: the calculation will be rounded to the nearest tenth. Drug Calculation safety considerations:
- Examples:
- 5 must be answered as 0.5
- 5.0 must be answered as 5
- To promote safety, a zero must be placed to the left of the decimal point in answers that are less than one. No zero is allowed to the right of the decimal point in answers that are whole numbers.
- Labeling is not necessary
Available: see drug label above Ordered promethazine 12.5mg IM
How many mL of promethazine will the nurse administer?
The Correct Answer is ["0.5"]
Dose available: 25mg/ml Ordered dose 12.5mg
Dose to administer= ordered dose/available dose
= 12.5/25 = 0.5ml
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["67"]
Explanation
To calculate the flow rate in mL/hr, we need to use the following formula:
Flow rate (mL/hr) = Dose (g/hr) x Volume (mL) / Concentration (g)
In this case, the dose is 2 g/hr, the volume is 1000 mL, and the concentration is 30 g. Plugging these values into the formula, we get:
Flow rate (mL/hr) = 2 x 1000 / 30 Flow rate (mL/hr) = 66.67
To follow the rounding rules, we need to round this answer to the nearest whole number.
Therefore, the flow rate in mL/hr is 67.
Correct Answer is ["0.2"]
Explanation
Dose available: 10 mg/ml Ordered dose 2mg
Dose to administer= ordered dose/available dose
= 2/10 = 0.2ml
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