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 C
Explanation
Choice A: Tachypnea Tachypnea, or rapid breathing, is not typically a direct sign of increased ICP. While it can be associated with various medical conditions, it is not specifically indicative of increased ICP. However, it’s important to note that breathing patterns can change with advanced ICP changes, but these are usually characterized by irregularities rather than just increased rate. Increased intracranial pressure (ICP) is a critical condition that can occur after a traumatic brain injury (TBI). It results from the brain tissue’s response to injury, leading to swelling or bleeding within the skull. The skull is a rigid structure, so any increase in content, such as blood or edema, can lead to an increase in pressure.
Choice B: Hypotension Hypotension, or low blood pressure, is generally not associated with increased ICP. In fact, one of the signs of increased ICP is Cushing’s triad, which includes hypertension (high blood pressure), bradycardia (slow heart rate), and irregular respirations. Therefore, hypotension would not be a typical manifestation of increased ICP.
Choice C: Decreased level of consciousness A decreased level of consciousness is a hallmark sign of increased ICP. As pressure within the skull increases, it can lead to compression of the brain tissue and disruption of cerebral blood flow. This can manifest as changes in alertness, drowsiness, confusion, and in severe cases, loss of consciousness1. when monitoring a client who has sustained a TBI, the nurse should be vigilant for signs of increased ICP, with a decreased level of consciousness being a primary indicator. Other signs may include headache, nausea, vomiting, and changes in pupil size or reactivity. It is crucial to identify and treat increased ICP promptly to prevent further brain injury and potential long-term consequences.
Choice D: Bilateral weakness of extremities While bilateral weakness can be a sign of neurological damage, it is not specific to increased ICP. Increased ICP is more likely to cause global effects on consciousness and brain function rather than isolated weakness in limbs unless there is focal brain injury causing raised ICP.
Correct Answer is C
Explanation
Choice A reason:Rescheduling the scan is not necessary unless there are other contraindications or scheduling conflicts.
Choice B reason:Sending a suction catheter is a precautionary measure, but it does not address the management of the feeding tube during the scan.
Choice C reason:Shutting off the feeding 30-60 minutes before the scan is a standard practice to reduce the risk of aspiration and to ensure that the stomach contents do not interfere with the imaging.
Choice D reason:Connecting the feeding tube to continuous suction is not typically required unless there is a specific concern for aspiration or gastric content management during the scan.
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