A nurse is preparing to administer a 2 mg IV bolus of morphine sulfate. Morphine sulfate is available in a concentration of 10 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["0.2"]
- Step 1: Identify the required dose in milligrams (mg). The nurse is scheduled to administer 2 mg of morphine sulfate.
- Step 2: Identify the concentration of the available solution. The available solution contains 10 mg of morphine sulfate per 1 mL.
- Step 3: Calculate the volume of solution needed to deliver the required dose. We can set up a proportion to solve for this:
- 10 mg is to 1 mL as 2 mg is to X mL.
- In other words, 10 mg : 1 mL = 2 mg : X mL.
- Step 4: Solve for X using cross-multiplication and division:
- Cross-multiplication gives us: 10 mg × X mL = 2 mg × 1 mL.
- Simplifying this gives us: 10X = 2.
- Dividing both sides by 10 gives us: X = 2 ÷ 10.
- Calculating the division gives us: X = 0.2.
So, the nurse should administer 0.2 mL of the morphine sulfate solution per dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["24"]
Explanation
- Step 1: Identify the prescribed dose in units per hour. The client is scheduled to receive 1,200 units/hr of heparin.
- Step 2: Identify the concentration of the available solution. The available solution contains 25,000 units of heparin in 500 mL D5W.
- Step 3: Calculate the volume of solution needed to deliver the required dose. We can set up a proportion to solve for this:
- 25,000 units is to 500 mL as 1,200 units is to X mL.
- In other words, 25,000 units : 500 mL = 1,200 units : X mL.
- Step 4: Solve for X using cross-multiplication and division:
- Cross-multiplication gives us: 25,000 units × X mL = 1,200 units × 500 mL.
- Simplifying this gives us: 25,000X = 600,000.
- Dividing both sides by 25,000 gives us: X = 600,000 ÷ 25,000.
- Calculating the division gives us: X = 24.
Set the IV pump to deliver 24 mL/hr to administer the required dose of 1,200 units/hr.
Correct Answer is D
Explanation
Choice A reason:Atrial fibrillation is not typically treated with defibrillation; it is usually managed with medication or other forms of rhythm control.
Choice B reason:Supraventricular tachycardia does not usually require defibrillation; it may be treated with vagal maneuvers or medication.
Choice C reason:Asystole, or the absence of a heartbeat, is not treated with defibrillation as there is no electrical activity to reset.
Choice D reason:Ventricular fibrillation is a life-threatening heart rhythm that requires immediate defibrillation to restore a normal heart rhythm.
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