After three days of persistent epigastric pain, a female client presents to the clinic. She has been taking oral antacids without relief. Her vital signs are heart rate 122 beats/minute, respirations 16 breaths/minute, blood pressure 116/70 mm Hg, and oxygen saturation 96%. The nurse obtains a 12-lead electrocardiogram (ECG). Which assessment finding is most critical?
Irregular heart rate.
Reports of radiating jaw pain.
ST elevation in three leads.
Bile colored emesis.
The Correct Answer is C
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is A
Explanation
A. Continue to monitor the client's condition: The ABG values are all within normal limits: pH 7.38, PaCO₂ 40 mm Hg, HCO₃⁻ 24 mEq/L, and PaO₂ 90 mm Hg. This indicates adequate acid-base balance and oxygenation. No immediate intervention is needed, so continued monitoring is the most appropriate nursing action.
B. Encourage the client to cough and deep breathe: Coughing and deep breathing are useful for clearing secretions or improving oxygenation in clients with hypoxia or atelectasis. However, the client’s PaO₂ is within the normal range, so this intervention is unnecessary.
C. Administer oxygen per face mask per PRN protocol: Supplemental oxygen is used when PaO₂ levels are below normal or when signs of respiratory distress are present. Since the client’s PaO₂ is 90 mm Hg, which is normal, there is no need to initiate oxygen therapy.
D. Instruct the client to breathe into a paper bag: Breathing into a paper bag is used to treat hyperventilation leading to respiratory alkalosis. The client’s ABG results do not show alkalosis; therefore, this intervention would be inappropriate and potentially harmful.
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