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

A. Initiate a peripheral IV:

Initiating a peripheral intravenous (IV) line may be necessary for clients with unstable angina to facilitate the administration of medications and fluids, especially if there is a need for further interventions or if the client's condition deteriorates. However, in this case, the client's chest pain has improved after receiving nitroglycerin, and there is no immediate indication for IV access based on the information provided.

B. Administer another nitroglycerin tablet:

Nitroglycerin is a vasodilator commonly used to relieve chest pain (angina) by dilating blood vessels and improving blood flow to the heart. The initial response of the client's chest pain severity decreasing from 6 to 2 after one sublingual nitroglycerin tablet indicates a positive response to the medication. However, it's important to assess the client's response further before administering additional doses of nitroglycerin, especially considering the potential for hypotension or other adverse effects.

C. Call the Rapid Response Team:

The Rapid Response Team (RRT) is typically called in situations where there is a concern for a critical event or deterioration of a client's condition that requires immediate intervention. In this scenario, the client's chest pain has improved after nitroglycerin administration, and there are no indications of an acute critical event at this time. Therefore, calling the RRT is not warranted based on the client's current status.

D. Obtain an ECG:

An ECG can be helpful to assess for potential ischemia or other cardiac abnormalities. However, it's not the most urgent action when the client is responding positively to nitroglycerin. It can be done while monitoring the client's response to the second dose.

A. The symptoms indicate an acute coronary episode and should be treated as such:

The client's symptoms, including sudden midsternal chest pain unrelieved with rest and a history of coronary artery disease (CAD), strongly suggest an acute coronary event, such as a myocardial infarction (heart attack). Pale, cool skin can also be indicative of decreased perfusion due to cardiac compromise. Given these critical signs and symptoms, the nurse should interpret this as a potential cardiac emergency and initiate immediate interventions aimed at managing and stabilizing the client's condition.

B. The symptoms indicate angina and should be treated as such:

While angina can present with symptoms such as chest pain, it is typically relieved with rest or nitroglycerin. In contrast, the client in this scenario has midsternal chest pain that is not relieved with rest, which is more indicative of an acute coronary event like a myocardial infarction. Therefore, interpreting the symptoms as angina and treating them as such may not be appropriate given the severity and persistence of the chest pain.

C. Treatment should be determined pending the results of an exercise stress test:

Waiting for the results of an exercise stress test is not appropriate in this scenario, as the client's presentation suggests an acute cardiac event that requires immediate intervention. Exercise stress tests are typically used for diagnostic purposes to assess cardiovascular function under controlled conditions but are not suitable for managing acute coronary episodes or emergencies.

D. The symptoms indicate a pulmonary etiology rather than a cardiac etiology:

While some symptoms, such as shortness of breath or chest pain, can overlap between cardiac and pulmonary conditions, the client's presentation with sudden midsternal chest pain unrelieved with rest, pale cool skin, and a history of CAD strongly suggests a cardiac etiology, specifically an acute coronary event. It is essential to prioritize cardiac assessment and intervention based on the client's symptoms and medical history.