A nurse is assisting the physician during a procedure in which a local anesthetic is administered
Within a few minutes of administration of the anesthetic, the patient has a pulse of 54 beats per minute, respirations of 18 breaths per minute, and a blood pressure of 90/42 mm Hg. The nurse should monitor the patient for further signs of: a. heart block.
b. anaphylaxis.
c. central nervous system excitation.
d. respiratory depression.
A
When absorbed in a sufficient amount, local anesthetics can affect the heart and blood vessels. These drugs suppress excitability in the myocardium and conduction system and can cause hy-potension, bradycardia, heart block, and potentially cardiac arrest. Anaphylaxis would be mani-fested by hypotension, bronchoconstriction, and edema of the glottis. Central nervous system excitation would be manifested by hyperactivity, restlessness, and anxiety and may be followed by convulsions. No evidence indicates respiratory depression; this patient's respirations are within normal limits.
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