The Nurse Is Caring for a Patient Admitted with Unstable

The nurse is caring for a patient admitted with unstable angina. The laboratory result for the initial troponin I is elevated in this patient. The nurse should recognize what implication of this assessment finding?

A) This is only an accurate indicator of myocardial damage when it reaches its peak in 24 hours.
B) Because the patient has a history of unstable angina, this is a poor indicator of myocardial injury.
C) This is an accurate indicator of myocardial injury.
D) This result indicates muscle injury, but does not specify the source.