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 ["A","B","C","E"]
Explanation
Choice A reason: Hypoxemia, or low oxygen levels in the blood, is a primary indicator of ARF as the lungs are unable to adequately oxygenate the blood.
Choice B reason: Confusion can result from hypoxemia or hypercapnia (high carbon dioxide levels) as the brain is sensitive to changes in blood gas levels.
Choice C reason: Dyspnea, or difficulty breathing, is a hallmark symptom of ARF as the lungs struggle to maintain adequate gas exchange.
Choice D reason: Bradycardia, or a slow heart rate, is not typically associated with ARF. Tachycardia, or a fast heart rate, is more common as the body attempts to compensate for hypoxemia.
Choice E reason: Hypocarbia, or low carbon dioxide levels, can occur in ARF if the body is attempting to compensate for hypoxemia by hyperventilating.
Correct Answer is C
Explanation
Choice A reason: Sodium level is not a direct measure of fluid volume. While sodium balance can influence fluid status, the serum sodium level can be affected by various factors and does not reliably indicate fluid volume increase on its own.
Choice B reason: Intake and output records are important for managing fluid balance, especially in a hospital setting. However, they can be influenced by many factors, such as incomplete recording or insensible losses, and do not provide a direct measure of fluid retention.
Choice C reason: Daily weight is considered the most reliable measure of fluid retention. Weight changes can reflect fluid balance accurately because 1 liter of fluid is roughly equivalent to 1 kilogram of body weight. In clients with chronic kidney disease, daily weight monitoring can help detect fluid volume increases or decreases promptly. For a client with chronic kidney disease, daily weight monitoring is a key assessment tool for detecting fluid volume changes. It provides a quantifiable and objective measure that can guide interventions to manage fluid balance effectively.
Choice D reason: Tissue turgor, which refers to the skin’s elasticity, is not a reliable measure of fluid volume. It can be influenced by age, edema, and other factors, and changes in turgor may not accurately reflect fluid status in the body.
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