A patient is receiving an IV of 500 mL D5W (dextrose 5% in water). How many grams (g) of dextrose are contained in this IV solution?
10 g
25 g
50 g
100 g
The Correct Answer is C
D5W is a solution that contains 5% dextrose in water. This means that for every 100 mL of solution, there are 5 g of dextrose. The patient is receiving an IV of 500 mL D5W. Therefore, the total amount of dextrose in this IV solution is (500 mL) * (5 g / 100 mL) = 25 g.
A. 10 g is incorrect because it is less than the calculated amount of dextrose.
B. 25 g is incorrect because it is half the calculated amount of dextrose.
C. 50 g is the correct answer.
D. 100 g is incorrect because it is double the calculated amount of dextrose.
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Related Questions
Correct Answer is ["B","D","E"]
Explanation
Preventing medication errors is a crucial aspect of nursing practice to ensure patient safety. Here are the explanations for the correct options:
b. Know the recommended dose range for the drug: It is essential for nurses to be knowledgeable about the recommended dose range for the medications they administer. Understanding the appropriate dosages helps in identifying any potential errors or discrepancies.
d. Question a drug dose that appears incorrect: If a nurse comes across a drug dose that seems incorrect or questionable, it is important to clarify and verify the dosage with the prescribing healthcare provider or pharmacist. This helps to prevent the administration of potentially harmful doses.
e. Recalculate the drug dosage if in doubt: If a nurse has doubts or uncertainties about the calculated drug dosage, it is crucial to double-check the calculations and recalculate to ensure accuracy. Being cautious and thorough in dosage calculations reduces the risk of medication errors.
a. Ask the charge nurse to administer the medication: While it is always advisable to seek guidance or clarification from senior nurses or charge nurses, the responsibility of administering medications lies with the nurse who has the knowledge and training to do so. Depending solely on the charge nurse to administer medications may not be practical or feasible in all situations.
c. Calculate all drug dosages by body surface area: Calculating drug dosages based on body surface area is necessary for certain medications, especially those with narrow therapeutic ranges or when administering chemotherapy drugs. However, it is not applicable to all medications. The method of dosage calculation varies depending on the medication and prescribed dosage regimen.
Therefore, the correct actions a nurse should take to prevent medication errors are knowing the recommended dose range for the drug, questioning a drug dose that appears incorrect, and recalculating the drug dosage if in doubt.
Correct Answer is D
Explanation
The new order is for 500 mg of bisoprolol per day. Since each tablet contains 100 mg, the client should take 500 mg / 100 mg/tablet = 5 tablets per day.
A. Taking two tablets daily is incorrect because it is less than the calculated number of tablets.
B. Taking five and a half tablets daily is incorrect because it is more than the calculated number of tablets.
C. Taking two and a half tablets daily is incorrect because it is half the calculated number of tablets.
D. Taking five tablets daily is the correct answer.
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