A client is admitted into the Cardiac ICU unit with a diagnosis of chronic stable angina. The nurse should teach the client that the most common characteristic of stable angina pain is that?

It is pain that can be relieved with rest

It is normal pain that will go away on its own on

It is pain that is not relieved by taking nitroglycerin

It is pain that requires a cardiac catheterization

Answer and Explanation

The Correct Answer is A

A) It is pain that can be relieved with rest:
Stable angina is typically predictable and occurs during physical exertion or emotional stress when the heart’s oxygen demand exceeds its supply. The pain associated with stable angina usually resolves with rest or after the cessation of the activity that triggered it. Additionally, nitroglycerin can help alleviate the discomfort by dilating blood vessels and improving blood flow to the heart muscle.

B) It is normal pain that will go away on its own:
Although stable angina pain may resolve on its own when the precipitating factor (e.g., exercise or stress) is removed, it is not considered "normal" pain. The pain is a symptom of underlying coronary artery disease (CAD), indicating that the heart muscle is not getting enough oxygen. It’s important for the client to manage angina carefully, as it may progress to more serious forms, such as unstable angina or myocardial infarction (heart attack), if not addressed appropriately.

C) It is pain that is not relieved by taking nitroglycerin:
Nitroglycerin is commonly effective in relieving stable angina by relaxing the coronary arteries and improving blood flow to the heart. If a client’s angina is not relieved by nitroglycerin, it may indicate that the angina is no longer stable (i.e., it has become unstable angina) or that a more serious cardiovascular event is occurring, such as a heart attack.

D) It is pain that requires a cardiac catheterization:
Cardiac catheterization is a diagnostic and interventional procedure typically used when a patient has unstable angina or a history of myocardial infarction or when other treatments have failed. However, stable angina usually does not require immediate catheterization unless the pain is refractory or there is evidence of significant coronary artery blockage. The most common management for stable angina is lifestyle modifications, medications (e.g., nitroglycerin, beta-blockers, calcium channel blockers), and addressing risk factors for coronary artery disease.

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Correct Answer is A

Explanation

A) Respiratory acidosis:
This condition is characterized by an increase in PaCO2 and a decrease in pH, which is exactly what is seen in these ABG results. The pH of 7.21 indicates acidosis (normal pH range is 7.35–7.45), and the PaCO2 of 50 is elevated (normal PaCO2 range is 35–45 mmHg), indicating that carbon dioxide retention is contributing to the acidosis. In respiratory acidosis, the lungs are unable to adequately expel CO2, leading to an accumulation of CO2 in the blood, which decreases the pH. The HCO3 (bicarbonate) is within normal range (22–28 mEq/L), suggesting that there has not yet been compensation by the kidneys, which would typically increase bicarbonate levels to buffer the acidosis.

B) Metabolic alkalosis:
Metabolic alkalosis is characterized by an elevated pH (above 7.45) and an elevated HCO3 (above 28 mEq/L). In this case, the pH is low (7.21), and the bicarbonate level (HCO3) is normal (26), so metabolic alkalosis is not the correct diagnosis.

C) Respiratory alkalosis:
Respiratory alkalosis occurs when there is decreased PaCO2 (below 35 mmHg) and an elevated pH (above 7.45), typically due to hyperventilation. Since the PaCO2 is elevated (50 mmHg) in this case, it rules out respiratory alkalosis.

D) Metabolic acidosis:
Metabolic acidosis is characterized by a low pH (below 7.35) and a low HCO3 (below 22 mEq/L). While the pH is low in this case, the HCO3 is normal (26 mEq/L), which suggests that the acidosis is not metabolic in origin. Metabolic acidosis would typically show a low bicarbonate level, indicating that the kidneys are not able to compensate effectively.

A. Peaked T waves B. Inverted P waves C. Widened QRS D. Prominent U wave

Correct Answer is A

Explanation

A) Peaked T waves:
Peaked T waves are a classic sign of hyperkalemia on an EKG. As potassium levels rise, the T waves become taller, more pointed, and narrow, indicating changes in the heart's electrical conduction. This is one of the earliest and most characteristic EKG changes seen with hyperkalemia. Hyperkalemia can result from conditions such as kidney dysfunction, use of potassium-sparing diuretics, or other electrolyte imbalances.

B) Inverted P waves:
Inverted P waves typically suggest issues such as atrial ischemia or ectopic atrial rhythms but are not a hallmark sign of hyperkalemia. They may also appear with other conditions, like atrial fibrillation or atrial flutter. However, inverted P waves are not typically linked to elevated potassium levels.

C) Widened QRS:
A widened QRS complex can occur in several conditions, including hyperkalemia, but it is generally seen in more severe cases. As potassium levels rise further, the QRS complex may widen due to delayed conduction through the ventricles. Although a widened QRS can indicate hyperkalemia, it is a later sign, and it typically occurs after more specific changes like peaked T waves.

D) Prominent U wave:
Prominent U waves are more often associated with hypokalemia (low potassium levels) rather than hyperkalemia. U waves are typically seen after the T wave on the EKG and can be more prominent in conditions of low potassium.

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A client is admitted into the Cardiac ICU unit with a diagnosis of chronic stable angina. The nurse should teach the client that the most common characteristic of stable angina pain is that?

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Correct Answer is A

Explanation

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Correct Answer is A

Explanation

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