The nurse is caring for a client who is diagnosed with an infarction of the posterior wall of the right atrium. Which assessment finding would the nurse anticipate relating to the infarction location?
A) Respiratory compromise
B) Chronic chest pain
C) Irregular heart rate
D) Cyanosis
C
Feedback:
The posterior wall of the right atrium is the location of the sinoatrial node (SA node), which is the pacemaker of the heart. Damage to this location may result in an irregular heart rate due to a disturbance of electrical pulse initiation. Depending on muscle damage, the client may have respiratory compromise, chest pain, and/or cyanosis.
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