A client with myasthenia gravis receives a new prescription for pyridostigmine. Which information should the nurse obtain to prior to administering the medication?
Recent oral intake.
Difficulty with urination.
Trouble sleeping.
Unexplained weight loss.
The Correct Answer is A
Rationale:
A. Pyridostigmine is most effective when taken before meals to improve muscle strength for swallowing. Knowing the client's recent oral intake helps in timing the medication appropriately.
B. Difficulty with urination is not directly related to pyridostigmine use.
C. Trouble sleeping is not typically associated with pyridostigmine.
D. Unexplained weight loss may be related to myasthenia gravis but is not directly relevant to the immediate administration of pyridostigmine.
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Correct Answer is C
Explanation
Rationale:
A. The combination of glucose and insulin is used to shift potassium into cells, which would lower serum potassium levels further; this is not appropriate for treating hypokalemia.
B. Increasing dietary intake of potassium is important but not sufficient to correct a serum potassium level as low as 2.5 mEq/L, which requires more immediate intervention.
C. A potassium level of 2.5 mEq/L is critically low and can lead to life-threatening cardiac arrhythmias. The healthcare provider should be informed immediately to initiate potassium replacement therapy, likely via intravenous infusion.
D. Hourly urinary output measurements may be useful but are not the immediate priority in treating severe hypokalemia.
Correct Answer is C
Explanation
Rationale:
A. Dietary teaching is important for long-term health but does not address the immediate issue of dizziness upon standing.
B. Monitoring vital signs every 4 hours is important, but obtaining blood pressure before standing is crucial to prevent falls and manage orthostatic hypotension.
C. Measuring blood pressure before the client stands helps identify orthostatic hypotension, which could be causing weakness and dizziness.
D. Measuring urinary output is relevant but not immediately pertinent to the client's dizziness and weakness on standing.