A nurse is teaching a client who is scheduled for dual-energy x-ray absorptiometry (DXA) to screen for osteoporosis. Which of the following instructions should the nurse include in the teaching?
"You will need to fast for 12 hours before the test."
"You will need to lie flat for 4 hours following the test."
"You will need to remove all jewelry before the test."
"You will need to empty your bladder before the test."
The Correct Answer is C
A. Fasting is not necessary for a dual-energy x-ray absorptiometry (DXA) scan, as it does not involve ingesting anything.
B. The client does not need to lie flat for an extended period following a DXA scan. They can resume normal activities immediately after the test.
C. The nurse should instruct the client to remove all jewelry or metal objects that can interfere with the test. A DXA scan is the mostly commonly used screening and diagnostic tool for measuring bone mineral density.
D. . It is not necessary to empty the bladder before the test.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["32"]
Explanation
1. Determine the concentration of heparin in the solution:
- There are 25,000 units of heparin in 500 mL of D5W.
- Concentration = 25,000 units / 500 mL = 50 units/mL.
2. Calculate the required mL/hr for the desired infusion rate:
- The order is for 1600 units/hr.
- To find the mL/hr:
ML/HR=desired units/hr divided by unts/ml
=1600/50
=32ml/hr
Correct Answer is ["33"]
Explanation
- To calculate the gtt/min, use the formula: gtt/min = (volume in mL x drop factor) / time in min
- Plug in the values from the question: gtt/min = (100 mL x 10 gtt/mL) / 30 min - Simplify and solve: gtt/min = 1000 gtt / 30 min
- Divide both sides by 30: gtt/min = 33.33 gtt/min
- Round to the nearest whole number: gtt/min = 33 gtt/min
- The nurse should set the manual IV infusion to deliver 33 gtt/min
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