A client is ordered .9mg ondansetron, IV, PRN q6 hours for nausea. The nurse anticipates which of the following sources to cause potential medication error?
Failed communication
Dose miscalculation
Lack of client education
Poor distribution practices
The Correct Answer is B
A) Failed communication: While communication errors can lead to medication mistakes, in this specific scenario, there is no mention of poor communication. The prescription is clear, and the issue is more likely related to the accuracy of the prescribed dose or the nurse’s understanding of it, making "failed communication" a less likely source of error in this case.
B) Dose miscalculation: This is the most likely source of potential error. The medication is ordered as 0.9 mg of ondansetron IV, which is an unusual dosage because the typical dose of ondansetron IV for nausea is usually 4 mg or 8 mg. A dose of 0.9 mg is very specific and could easily be miscalculated, especially if the nurse is not familiar with this specific dosage form or if there’s any confusion regarding the intended dose. This could lead to an error either in preparation or administration of the medication.
C) Lack of client education: While client education is important for many aspects of treatment, it’s not directly related to the potential medication error in this scenario. The nurse’s concern should focus on the accuracy of administering the prescribed dose correctly, not the client’s understanding of the medication.
D) Poor distribution practices: Poor distribution practices may affect the availability or storage of medications, but this is not the likely source of error in this case. The concern here is more about the correct dosage and potential for miscalculation, rather than issues related to drug distribution or storage.
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Related Questions
Correct Answer is C
Explanation
A) Use perfumes and air fresheners: Using perfumes and air fresheners may actually worsen nausea for some clients, as strong scents can trigger or exacerbate feelings of nausea, particularly in individuals undergoing chemotherapy. It is generally advisable to avoid strong odors in the environment to prevent triggering nausea.
B) Eat foods that are high in fibre: While a balanced diet is important, high-fibre foods may not be helpful in managing nausea and vomiting associated with chemotherapy. In fact, high-fibre foods can sometimes contribute to gastrointestinal discomfort, bloating, or constipation, which may worsen nausea in certain individuals. Therefore, fibre-rich foods are not the best option for reducing nausea and vomiting in this scenario.
C) Drink clear and carbonated beverages: Drinking clear liquids, such as water, ginger ale, or clear broths, can help reduce nausea by keeping the client hydrated and soothing the stomach. Carbonated beverages, such as ginger ale, are often recommended because the bubbles can help alleviate nausea and provide some relief. This is a well-established strategy for managing chemotherapy-related nausea and vomiting.
D) Walk frequently throughout the day: While physical activity is generally beneficial for overall health, walking frequently may not directly address nausea and vomiting caused by chemotherapy. In some cases, walking might even worsen nausea if the client is feeling weak or dizzy. Resting and staying hydrated may be more beneficial in the management of nausea associated with chemotherapy.
Correct Answer is B
Explanation
Here's the process for calculating the drug concentration after multiple half-lives:
First half-life: After 1 half-life, 50% of the original dose remains in the body.
200 mg x 0.50 = 100 mg remains after 1 half-life.
Second half-life: After 2 half-lives, 50% of the remaining drug will be eliminated.
100 mg x 0.50 = 50 mg remains after 2 half-lives.
Third half-life: After 3 half-lives, 50% of the remaining drug will be eliminated again.
50 mg x 0.50 = 25 mg remains after 3 half-lives.
Fourth half-life: After 4 half-lives, 50% of the remaining drug will be eliminated once more.
25 mg x 0.50 = 12.5 mg remains after 4 half-lives.
Now, we need to sum up the amount of drug remaining in the body at each half-life:
After 4 half-lives, there are 12.5 mg left from the original dose.
Total drug in the body after 4 half-lives = 200 mg - 12.5 mg = 375 mg.
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