When 250 mg of a medication is diluted in 500 mL of 5% dextrose in water, how many milligrams of the medication will be in 1 mL of D5W?
0.5.
50.
500.
5.
The Correct Answer is D
The question asks how many milligrams of the medication will be in 1 mL of D5W. To find this, we need to know the concentration of the medication in the solution.
Concentration is the amount of medication per unit volume of solution. We can use this formula:
Concentration = Mass / Volume
We know that 250 mg of the medication is diluted in 500 mL of D5W. So we can plug these values into the formula:
Concentration = 250 mg / 500 mL Simplifying, we get:
Concentration = 0.5 mg / mL
This means that there are 0.5 mg of the medication in every 1 mL of D5W. So the answer is
- To check our answer, we can use another formula:
Mass = Concentration x Volume
If we want to find the mass of the medication in 1 mL of D5W, we can multiply the concentration by the volume:
Mass = 0.5 mg / mL x 1 mL Simplifying, we get:
Mass = 0.5 mg
This matches our answer.
The other choices are wrong because they do not use the correct formula or values. Here is why:
Choice A is wrong because it uses the inverse of the concentration (1 / 0.5) instead of the concentration (0.5).
Choice B is wrong because it uses the mass of the medication (250 mg) instead of the concentration (0.5 mg / mL).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
This action would cause the nurse to intervene because it increases the risk of choking and aspiration for a client with dysphagia, which is difficulty swallowing. The nurse would instruct the UAP to feed the client small amounts of food slowly, allowing time for chewing and swallowing.
Choice A is wrong because offering thickened liquids is a safe practice for a client with dysphagia. Thickened liquids allow for easier swallowing and less choking, thus decreasing the chance of aspiration.
Choice B is wrong because placing the client in an upright position is also a safe practice for a client with dysphagia. This position helps prevent food from entering the airway and facilitates swallowing.
Choice D is wrong because allowing ample time between bites is another safe practice for a client with dysphagia. This helps the client avoid feeling rushed or overwhelmed and reduces the risk of aspiration.
Correct Answer is B
Explanation
This is because offering fluids that the client likes and in small amounts can help increase the client’s fluid intake and prevent dehydration. According to, some other nursing measures that can help improve the client’s nutritional intake are:
- Encouraging favorite foods from home, when possible.
- Providing frequent oral hygiene.
- Providing a pleasant environment during mealtime.
- Providing assistance with eating, if needed.
Choice A is wrong because placing a freshwater pitcher on the bedside table may not be enough to motivate the client to drink more fluids, especially if the client does not like plain water or has difficulty reaching for the pitcher.
Choice C is wrong because explaining the problems of inadequate intake may not be effective in changing the client’s behavior, and may even cause anxiety or resentment.
Choice D is wrong because stressing the importance of drinking fluids may also be ineffective or counterproductive, as it may sound like nagging or lecturing to the client.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.