A nurse at a provider's office receives a telephone call from a client who reports nausea and has unrelieved chest pain after taking a nitroglycerin tablet 5 min ago. Which of the following is an appropriate response by the nurse?
Advise the client to come into the office.
Advise the client to take an antacid.
Instruct the client to call 911.
Tell the client to take another nitroglycerin tablet in 15 min.
The Correct Answer is C
A. Advise the client to come into the office. The client needs immediate emergency intervention, not a routine office visit.
B. Advise the client to take an antacid. Chest pain unrelieved by nitroglycerin may indicate myocardial infarction; an antacid would not help.
C. Instruct the client to call 911. Persistent chest pain unrelieved by nitroglycerin warrants emergency attention due to potential heart attack.
D. Tell the client to take another nitroglycerin tablet in 15 min. The protocol allows taking an additional dose in 5 minutes, but emergency services should be called for unrelieved chest pain.
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Correct Answer is B
Explanation
A. Obtain a blood sample. Although obtaining a blood sample is essential for cardiac enzyme levels, it is not the highest priority. Addressing oxygenation takes precedence to relieve hypoxia.
B. Initiate oxygen therapy. Oxygen is the first priority to improve oxygenation in a client showing signs of hypoxia (cyanosis, dyspnea), which can prevent further ischemic damage to the heart.
C. Attach the leads for a 12-lead ECG. While obtaining an ECG is essential for diagnosing myocardial ischemia, ensuring oxygenation is more critical in this moment.
D. Insert the IV catheter. An IV line is necessary to administer fluids and medications, but oxygenation should be prioritized first to stabilize the client.
Correct Answer is C
Explanation
A. "A heart murmur is a high-pitched sound due to a narrow valve." Not all murmurs are high-pitched, nor are they always due to a narrow valve.
B. "This means that there is some inflammation around your heart." A murmur does not indicate inflammation around the heart; it typically indicates abnormal blood flow.
C. "This indicates turbulent blood flow through a valve." A heart murmur is caused by turbulent blood flow, often through a damaged or abnormal valve.
D. "A heart murmur is an extra sound due to blood entering an inflexible chamber." While inflexible chambers can cause extra heart sounds, this does not describe a murmur.