The prescription reads for guaifenesin 400 mg PO every 4 hours as needed for congestion. Using the label below, how many mL will the nurse administer to the client? Enter a numeric value only. Answer to the nearest whole mL.
The Correct Answer is ["20"]
1. Determine the concentration of the guaifenesin:
The label states 100 mg/5 mL.
2. Set up a proportion to find the volume (in mL) needed:
100 mg / 5 mL = 400 mg / x mL
3. Solve for x:
Cross-multiply: 100x = 400 * 5
100x = 2000
x = 2000 / 100
x = 20 mL
Answer: The nurse will administer 20 mL to the client.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["250"]
Explanation
Identify the total volume:
The client is ordered to receive 1000 mL of 0.9% saline.
Identify the infusion time:
The infusion time is 4 hours.
Set up the calculation:
We need to find out the IV pump rate in mL/hr. We can use the following formula:
(Total volume) / (Infusion time) = IV pump rate
4. Plug in the values and calculate:
(1000 mL) / (4 hours) = 250 mL/hr
Correct Answer is D
Explanation
A) Polyethylene Glycol: Polyethylene glycol is a medication typically used to treat constipation by promoting bowel movements. While it can be useful in managing constipation, it is not commonly prescribed after a myocardial infarction. In this situation, the focus is more on medications that promote heart health, reduce cardiac workload, and prevent complications related to the heart attack.
B) Bisacodyl: Bisacodyl is a stimulant laxative used to relieve constipation. However, this medication is not typically prescribed immediately following a myocardial infarction. Stimulant laxatives can cause dehydration and excessive fluid shifts, which can be harmful to a client recovering from a heart attack. The focus would be on safer options for bowel management in this context.
C) Senna: Senna is also a stimulant laxative, used for relieving constipation. Similar to bisacodyl, it is not ideal for clients who have recently experienced a myocardial infarction due to its potential for causing dehydration and electrolyte imbalances, which could negatively affect heart function. A gentler approach to bowel management is preferred for these clients.
D) Docusate Sodium: Docusate sodium is a stool softener commonly prescribed to prevent constipation, especially in clients who have recently had a myocardial infarction. After a heart attack, it's important to avoid straining during bowel movements, as this could increase pressure on the heart. Docusate sodium helps soften stools and promotes smoother bowel movements without stimulating the gastrointestinal system in a way that would elevate cardiac stress. It is the most appropriate choice for this client.
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