A nurse is assessing a client who has muscarinic agonist poisoning. Following administration of atropine, which of the following findings should indicate to the nurse that the treatment has been effective?
Hyperactive bowel sounds
Heart rate 90/min
Blood pressure 90/50 mm Hg
Increased salivation
The Correct Answer is B
B. Muscarinic agonists can cause bradycardia (slow heart rate) due to increased vagal tone. Atropine, as a muscarinic antagonist, increases heart rate by blocking the vagal effects on the heart. A heart rate of 90/min suggests normalization of heart rate, indicating that atropine has been effective in reversing bradycardia.
A. Muscarinic agonists can cause excessive gastrointestinal motility and increased bowel sounds. Atropine, by blocking muscarinic receptors, reduces gastrointestinal motility and can lead to decreased bowel sounds. Therefore, hyperactive bowel sounds would suggest ongoing muscarinic stimulation and inadequate response to atropine.
C. Muscarinic agonists can cause hypotension (low blood pressure) due to vasodilation and decreased cardiac output. Atropine can cause mild to moderate increases in blood pressure by blocking vasodilation and increasing sympathetic tone. A blood pressure of 90/50 mm Hg suggests persistent hypotension and inadequate response to atropine.
D Muscarinic agonists can cause excessive salivation and secretions. Atropine reduces salivation and secretions by blocking muscarinic receptors. Therefore, increased salivation would indicate ongoing muscarinic stimulation and insufficient response to atropine.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
D. This action is crucial for several reasons: it ensures that the error is formally recorded, which can help in preventing similar incidents in the future; it allows for a review of dispensing processes to improve safety; and it maintains transparency and accountability within the healthcare facility.
A. It's essential to explain the situation clearly and reassure the client that steps are being taken to correct the error. However, it does not prevent such future events.
B. While it's important to report the error to the prescribing provider, this action alone does not address the immediate need to inform the client or document the incident properly within the facility's policies and procedures.
C. This option focuses on documenting it as a near miss rather than acknowledging the actual dispensing error. Filing a report is necessary, but it should accurately reflect the error that occurred.
Correct Answer is C
Explanation
C Ataxia can occur as a side effect of phenytoin, especially if the dosage is too high or if the client is particularly sensitive to the medication. It can impair the client's ability to perform activities of daily living safely. Therefore, it should be monitored closely, and significant ataxia should be reported to the provider for evaluation and possible adjustment of the medication dosage.
A. This is a known adverse effect of phenytoin. It can cause the gums to become swollen, enlarged, and prone to bleeding. Although it is not typically harmful to the client's health, it can affect oral hygiene and appearance. The nurse should educate the client about good oral care practices and encourage regular dental check-ups. While it does not necessarily need to be reported immediately, it should be documented and monitored.
B. Drowsiness is a common side effect of phenytoin and many other anticonvulsant medications. It often occurs initially or when the dosage is increased. While it can affect the client's daily activities and quality of life, it does not usually require immediate reporting unless it is severe or persistent.
D. Hirsutism is a less common side effect of phenytoin. It results from hormonal changes induced by the medication. While it may not pose an immediate threat to the client's health, it can cause distress and affect self-esteem. Therefore, it should be reported to the provider for further assessment and management.
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