The standard policy on the cardiac unit states, “Notify the health care provider for mean arterial pressure (MAP) less than 70 mm Hg.”. Which patient should the nurse call the health care provider about?

Choice A rationale
Stable angina typically occurs with exertion and goes away with rest. The symptoms described, including substernal pain, discomfort in the left shoulder and jaw, which subside with rest, are characteristic of stable angina.
Choice B rationale
Prinzmetal angina, also known as variant angina, is a type of angina (chest pain) caused by spasms in the coronary arteries. These spasms occur most often in coronary arteries that have not become hardened due to plaque buildup. However, they can also occur in hardened arteries. The symptoms can be similar to those of stable angina, but the typical triggers for the episodes are different.
Choice C rationale
A myocardial infarction (MI), or heart attack, occurs when one of the coronary arteries becomes blocked, often by a blood clot, causing part of the heart muscle to be damaged or die. The symptoms are usually more severe than what is described and do not typically subside with rest.
Choice D rationale
Unstable angina is a condition in which the angina symptoms become more severe, occur more frequently, or occur at rest. This is a medical emergency as it can often lead to a heart attack.

Choice A rationale
While reducing anxiety and relieving pain are important aspects of care, they are not the primary goal for a client with an elevated ST segment on the ECG and an elevated cardiac troponin level. These findings indicate myocardial injury, which requires interventions to improve myocardial oxygenation and reduce cardiac workload.
Choice B rationale
The primary goal for a client with an elevated ST segment on the ECG and an elevated cardiac troponin level is to improve myocardial oxygenation and reduce cardiac workload. This can be achieved through medications, oxygen therapy, and bed rest.
Choice C rationale
Eliminating family stressors and providing a calm environment can contribute to reducing anxiety and promoting relaxation, but it is not the primary goal in this situation.
Choice D rationale
Starting the client on a low-sodium diet and decreasing fluid intake are interventions for managing heart failure, not for an acute myocardial injury.