A client with chronic constipation reports taking 2 ounces of magnesium hydroxide at bedtime. The bottle is labeled "Magnesium hydroxide saline laxative, USP 400 mg per 5 mL. How many mL should the nurse document in the medical record? (Enter numerical value only.)
The Correct Answer is ["59.147"]
Here's how to calculate the number of mL the nurse should document:
Client dosage: 2 ounces (given)
Conversion factor: 1 ounce (oz) = 29.5735 mL (conversion factor)
Magnesium hydroxide concentration: 400 mg per 5 mL (from bottle label)
We need to find the equivalent volume in mL of the 2 ounces dosage the client reported.
Steps:
a. Convert ounces to mL:
Client dosage (mL) = Client dosage (oz) x Conversion factor (mL/oz)
Client dosage (mL) = 2 oz * 29.5735 mL/oz
Client dosage (mL) = 59.147 mL (round to nearest hundredth)
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["21"]
Explanation
Here's how to calculate the infusion rate (gtt/min) for the nurse to regulate:
1. Volume of lactated Ringer's solution:
Volume = 1 liter (given)
Conversion factor: 1 liter = 1000 mL
Volume (mL) = 1 liter * 1000 mL/liter
Volume (mL) = 1000 mL
2. Infusion duration:
Duration = 8 hours (given)
3. IV administration set gtt/mL:
Rate (gtt/mL) = 10 gtt/mL (given)
4. We need to find the rate (gtt/min) at which the solution should infuse to deliver the total volume (1000 mL) over the specified duration (8 hours).
Steps:
a. Convert infusion duration from hours to minutes:
Duration (minutes) = Duration (hours) x Minutes per hour
Duration (minutes) = 8 hours * 60 minutes/hour
Duration (minutes) = 480 minutes
b. Calculate the total number of drops to be infused:
Total drops = Volume (mL) x Rate (gtt/mL)
Total drops = 1000 mL * 10 gtt/mL
Total drops = 10,000 drops
c. Calculate the infusion rate (gtt/min):
Infusion rate (gtt/min) = Total drops / Duration (minutes)
Infusion rate (gtt/min) = 10,000 drops / 480 minutes
Infusion rate (gtt/min) = 20.83 gtt/min (round to nearest whole number as requested)
Therefore, the nurse should regulate the infusion at approximately 21 gtt/min.
Correct Answer is ["20"]
Explanation
First, we need to find out how many mL of the solution contains 10 units of insulin, which is the prescribed rate per hour.
Given:
The solution contains 50 units of insulin in 100 mL.
The prescription rate is 10 units/hour.
We can set up the proportion as follows:
10units/ xmL = 50units/100mL
Solving for x gives us the volume in mL that contains 10 units of insulin.
Cross-multiplying and solving for x:
X = 10units×100mL/50units
After performing the calculation, we find that x equals 20 mL.
So, the nurse should program the infusion pump to deliver 20 mL/hr. This is because 20 mL of the solution contains the prescribed 10 units of insulin.
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