A patient received lidocaine as an axillary block for a surgical procedure. A nurse checks the pulse rate 5 minutes after administration and determines that the pulse is slightly irregular and slow
The nurse's analysis of this patient's response would be which of the following?
a. The patient has absorbed lidocaine and may have cardiac toxicity.
b. Excessive epinephrine may have been present in the anesthetic.
c. The patient is now pain free, therefore the pulse rate is slower.
d. This is a normal response when lidocaine is used for an axillary block.
ANS: A
The absorption of lidocaine may lead to cardiac toxicity in some patients.
Epinephrine was not identified as being used with the lidocaine, therefore this is not a plausible rationale.
The amount of pain the patient experienced, if any, is not indicated, therefore this is not a plausible rationale.
Although lidocaine may reduce the heart rate, it should not produce an irregular heart beat, therefore this is not normal.
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