The nurse is evaluating a patient who is experiencing chest pain beneath the sternum.
Which symptom reports would support a diagnosis of stable angina pectoris over a potential myocardial infarction?
(Select All That Apply)
The pain lasts less than five minutes.
I have experienced shortness of breath with the pain.
The pain started while I was watching television.
One nitroglycerine tablet alleviated the pain.
Correct Answer : A,C,D
Choice A rationale:
Duration of pain: Stable angina typically lasts for less than 5 minutes, while pain from a myocardial infarction (MI) typically lasts longer, often 20 minutes or more. This is because stable angina is caused by a temporary decrease in blood flow to the heart muscle, while an MI is caused by a complete blockage of blood flow, leading to more severe and prolonged pain.
Mechanism of pain: The pain in stable angina is due to ischemia, which is a lack of oxygen to the heart muscle. This occurs when the demand for oxygen by the heart muscle exceeds the supply of oxygenated blood.
Nitrates and ischemia: Nitrates, such as nitroglycerin, work by dilating the coronary arteries, which increases blood flow to the heart muscle and relieves ischemia. This is why nitroglycerin is often effective in relieving the pain of stable angina.
Choice B rationale:
Non-specific symptom: Shortness of breath can occur with both stable angina and MI, as well as other conditions such as lung disease or anxiety. Therefore, it is not a specific symptom that can be used to differentiate between the two conditions.
Choice C rationale:
Activity level: Stable angina is typically triggered by exertion or emotional stress, which increase the heart's demand for oxygen.
Rest and angina: The pain often subsides with rest or nitroglycerin.
MI and rest: In contrast, the pain of an MI can occur at rest and is not always relieved by nitroglycerin.
Choice D rationale:
Nitrates and stable angina: As mentioned earlier, nitrates are often effective in relieving the pain of stable angina.
Nitrates and MI: However, they may not be as effective in relieving the pain of an MI, as the blockage of blood flow is more severe.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale:
While it's important to assess for potential causative factors of premature ventricular contractions (PVCs), such as caffeine intake, it's not the immediate priority in this scenario.
The nurse's primary focus should be on assessing the patient's hemodynamic stability and oxygenation status, as frequent PVCs can compromise cardiac function and lead to serious complications.
Assessment of causative factors can be done subsequently, once the patient's immediate physiological needs have been addressed.
Choice B rationale:
The patient's subjective experience of palpitations or fluttering is valuable information, but it doesn't provide objective data about their cardiovascular status.
The nurse needs to prioritize objective assessment of vital signs, such as blood pressure and oxygen saturation, to evaluate the patient's hemodynamic stability and oxygenation.
Subjective symptoms can be further explored after obtaining objective data.
Choice D rationale:
Precipitating factors, such as infection, can contribute to PVCs, but they are not the immediate priority in this case.
The nurse's focus should be on assessing the patient's current cardiovascular status and ensuring their stability.
Investigation of potential precipitating factors can be done later, as part of a comprehensive assessment and management plan.
Choice C rationale:
Blood pressure and oxygen saturation are the most crucial parameters to assess in a patient with frequent PVCs.
Here's why:
Blood pressure: PVCs can disrupt the normal rhythm of the heart, potentially leading to a decrease in cardiac output and hypotension.
Hypotension can compromise perfusion to vital organs, such as the brain and kidneys, and can be a sign of hemodynamic instability.
Therefore, it's essential to monitor the patient's blood pressure closely.
Oxygen saturation: PVCs can also impair the heart's ability to pump blood effectively, which can lead to decreased oxygen delivery to the tissues.
This can result in hypoxemia, which can further worsen cardiac function and cause other complications.
Monitoring oxygen saturation using pulse oximetry is crucial to ensure adequate oxygenation.
Correct Answer is C
Explanation
Choice A rationale:
Drowsiness and blurred vision are not common adverse effects of nitroglycerin.
While some individuals may experience mild drowsiness, it's not a primary concern.
Blurred vision is not typically associated with nitroglycerin use.
Choice B rationale:
Nervousness and paresthesia (tingling or numbness in the extremities) are not common adverse effects of nitroglycerin.
Some individuals may experience transient anxiety or nervousness, but it's not a characteristic side effect.
Paresthesia is more commonly associated with other medications or conditions.
Choice C rationale:
Throbbing headache and dizziness are the most common adverse effects of nitroglycerin.
They occur due to nitroglycerin's vasodilatory effect, which causes blood vessels to relax and widen.
This can lead to a temporary drop in blood pressure, resulting in headaches and dizziness.
The headaches are often described as throbbing or pulsating, and they typically occur in the frontal or temporal regions of the head.
Dizziness may be mild or severe, and it may be accompanied by lightheadedness or a feeling of unsteadiness.
Choice D rationale:
Tinnitus (ringing in the ears) and diplopia (double vision) are not common adverse effects of nitroglycerin.
They may occur in rare cases, but they are not typically associated with its use.
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