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.)

Answer and Explanation

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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Correct Answer is B

Explanation

Choice A reason:Bubbling in the water seal chamber with exhalation can be normal, indicating that air is being evacuated from the pleural space.

Choice B reason:Crepitus, or subcutaneous emphysema, can indicate that air is leaking into the tissue around the chest tube site, which is a serious complication that requires immediate attention.

Choice C reason:

Movement of the trachea toward the unaffected side can indicate tension pneumothorax, a life-threatening condition that also requires immediate attention.

Choice D reason:If the eyelets of the chest tube are not visible, it may simply mean that the tube is inserted fully, which is not an immediate cause for concern unless other symptoms are present.

A. "I was an intravenous drug abuser in the past and shared needles." B. "I ate shellfish about 2 weeks ago at a local restaurant." C. "I had a blood transfusion 30 years ago after major abdominal surgery." D. "I have had unprotected sex with multiple partners."

Correct Answer is B

Explanation

Choice A reason:While sharing needles can transmit hepatitis, it is more commonly associated with hepatitis B and C, not hepatitis A.

Choice B reason:Eating shellfish from contaminated water is a well-known route of transmission for hepatitis A, aligning with the client's symptoms.

Choice C reason:Blood transfusions were a risk for hepatitis transmission in the past, but since the 1990s, blood products are screened for hepatitis, making this an unlikely source.

Choice D reason:Unprotected sex can be a route of transmission for hepatitis, but hepatitis A is more commonly spread through ingestion of contaminated food or water, not sexual contact.

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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.)

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Naxlex Comprehensive Predictor Exams

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Correct Answer is B

Explanation

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Correct Answer is B

Explanation

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