A client is admitted to the hospital for shortness of breath and chest pain after an episode of syncope. Which laboratory finding is most important for the nurse to report to the healthcare provider (HCP)?
Troponin I.
Blood glucose.
Oxygen saturation.
Hematocrit.
The Correct Answer is A
A. Troponin I: Troponin I is a highly specific marker for myocardial injury. Elevated levels suggest acute coronary syndrome or myocardial infarction, which could explain the client’s chest pain, shortness of breath, and syncope. This findings may indicate potential for life-threatening cardiac damage.
B. Blood glucose: Abnormal glucose levels can contribute to long-term cardiovascular risk and may affect recovery, but they are not the priority in the acute setting unless critically low or high. They do not explain the acute onset of chest symptoms and syncope.
C. Oxygen saturation: While oxygen saturation is important, it is typically monitored continuously or via spot checks. Unless critically low, a slight reduction in oxygen saturation would not be as urgent as a positive cardiac biomarker in this clinical context.
D. Hematocrit: A low hematocrit could indicate anemia, which might contribute to fatigue or dyspnea, but it is not as immediately concerning as cardiac ischemia in a client with chest pain and syncope. It is a secondary concern in this case.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Irregular heart rate: An irregular heart rate may indicate an arrhythmia, but without other alarming findings, it is not the most critical. It requires monitoring, but it does not confirm a life-threatening process like myocardial infarction.
B. Reports of radiating jaw pain: Jaw pain, especially in women, may be a sign of myocardial ischemia. While concerning, it is still a subjective symptom and less immediately diagnostic than confirmed ECG findings like ST elevation.
C. ST elevation in three leads: ST elevation in two or more contiguous leads confirms an ST-elevation myocardial infarction (STEMI), which is a medical emergency requiring immediate reperfusion therapy.
D. Bile-colored emesis: Bile-colored vomiting may point toward a gastrointestinal issue such as bile reflux or intestinal obstruction. Though unpleasant and possibly indicative of another condition, it is not as life-threatening as ECG-confirmed STEMI.
Correct Answer is {"A":{"answers":"A,B"},"B":{"answers":"A"},"C":{"answers":"A"},"D":{"answers":"A,B"},"E":{"answers":"A,B"},"F":{"answers":"B"}}
Explanation
- Epigastric distress: Epigastric discomfort can occur in both angina and myocardial infarction due to referred pain or visceral irritation from ischemia. Clients may confuse this with indigestion, particularly in atypical presentations.
- Occurring without cause: Myocardial infarction pain often occurs suddenly and unpredictably, including during rest or sleep. It is not always precipitated by physical exertion or emotional stress, unlike classic stable angina.
- Pain only relieved by opioids: Myocardial infarction pain is severe and typically not responsive to nitroglycerin alone. Relief often requires opioid analgesics like morphine, which also help reduce cardiac workload.
- Feelings of fear: A sense of impending doom or intense anxiety is commonly reported in both angina and myocardial infarction, likely due to sympathetic nervous system activation during cardiac distress.
- Chest pain radiating down arm: Radiation of pain, especially to the left arm, is classic in both angina and myocardial infarction. It reflects the shared neural pathways between the heart and upper extremity.
- Pain relieved by nitroglycerin: Angina is typically responsive to rest and nitroglycerin, which dilates coronary arteries and reduces oxygen demand. In contrast, MI pain often persists despite nitroglycerin.
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