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.
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Naxlex Comprehensive Predictor Exams
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Correct Answer is D
Explanation
Choice A reason: Tenderness in the left upper abdomen is not typically associated with an obstruction of the common bile duct. This symptom is more commonly related to conditions affecting the stomach, pancreas, or spleen. The common bile duct is in the right upper quadrant of the abdomen, and tenderness in this area might be expected with its obstruction.
Choice B reason: Ecchymosis of the extremities is not a common finding in common bile duct obstruction. Ecchymosis, or bruising, is usually due to trauma, blood disorders, or other causes of fragile blood vessels and is not related to bile duct issues.
Choice C reason: Pale-colored urine is the opposite of what might be expected with common bile duct obstruction. Typically, the urine may become dark due to increased bilirubin levels that are excreted by the kidneys when the bile duct is obstructed.
Choice D reason: Fatty stools, or steatorrhea, are a classic finding in common bile duct obstruction. When bile flow is blocked, fats are not properly digested and absorbed, leading to stools that are bulky, greasy, and often have a foul odor. This occurs because bile is necessary for the emulsification and absorption of dietary fats in the intestine.
Correct Answer is A
Explanation
Choice A reason: Administering oxygen therapy is the first and immediate intervention for a client with a pulmonary embolism to address hypoxemia.
Choice B reason: Starting an IV infusion of Lactated Ringer's is important for fluid resuscitation but is not the first intervention for pulmonary embolism.
Choice C reason: Initiating cardiac monitoring is important for observing the client's heart function but comes after ensuring the client is receiving adequate oxygen.
Choice D reason: Giving morphine IV may be used for pain management in pulmonary embolism but is not the first-line intervention.
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