The nurse receives a client from the post-anesthesia unit with a new onset of sinus tachycardia and a heart rate of 118 beats per minute. To which reasons does the nurse relate the increased heart rate? (Select All that Apply.)
Anxiety
Sleep
Fever
Hyperglycemia
Blood loss
Correct Answer : A,C,E
A. Anxiety:
Anxiety can lead to an increased heart rate due to the activation of the sympathetic nervous system. When a person is anxious, their body releases stress hormones like adrenaline, which can stimulate the heart to beat faster. This increased sympathetic activity can cause sinus tachycardia, where the heart rate is faster than normal.
B. Sleep:
While sleep can affect heart rate variability, causing fluctuations in heart rate during different stages of sleep, it typically does not cause a significant and sustained increase in heart rate like sinus tachycardia. Sleep is more likely to influence heart rate patterns rather than directly cause sinus tachycardia.
C. Fever:
Fever, especially in response to infection or inflammation, can lead to an elevated heart rate. The body's response to fever includes increased metabolic activity, which can raise the heart rate as part of the physiological stress response. Fever-induced sinus tachycardia is a common finding in individuals with infections.
D. Hyperglycemia:
While hyperglycemia (high blood sugar levels) can have cardiovascular effects over time, such as contributing to atherosclerosis and heart disease, it is not typically a direct cause of sinus tachycardia. Sinus tachycardia is more commonly associated with acute stressors like anxiety, fever, or hypovolemia (such as from blood loss).
E. Blood loss:
Significant blood loss, such as during surgery or due to trauma, can result in hypovolemia, where there is a decrease in blood volume circulating in the body. In response to hypovolemia, compensatory mechanisms kick in, including an increase in heart rate (sinus tachycardia), to maintain blood pressure and perfusion to vital organs.
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Correct Answer is C
Explanation
A. Ascending edema:
Ascending edema, also known as dependent edema, is typically associated with right-sided heart failure rather than left-sided heart failure. In right-sided heart failure, the heart's ability to pump blood to the lungs for oxygenation is compromised, leading to fluid backup in the systemic circulation. This fluid accumulates in the dependent areas of the body, such as the lower extremities (legs and ankles), causing swelling that can ascend upwards if left untreated. However, ascending edema is not a characteristic finding in left-sided heart failure, where pulmonary congestion and orthopnea are more common manifestations.
B. The client has no desire to eat:
While decreased appetite can occur in heart failure due to various factors such as fluid retention, abdominal bloating, or medication side effects, it is not a specific hallmark of left-sided heart failure. Symptoms such as fatigue, dyspnea (shortness of breath), orthopnea (difficulty breathing while lying flat), and paroxysmal nocturnal dyspnea (PND) are more commonly associated with left-sided heart failure. These symptoms result from the impaired function of the left ventricle, leading to pulmonary congestion and inadequate oxygenation.
C. The client sleeps on three pillows at night:
This choice is the correct answer. Sleeping on three pillows at night is a classic manifestation of orthopnea, a condition commonly seen in left-sided heart failure. Orthopnea refers to difficulty breathing while lying flat, which is alleviated by elevating the head and upper body with multiple pillows or sleeping in a semi-upright position. Orthopnea occurs due to the redistribution of fluid from the legs and lower body to the lungs when lying down, resulting in pulmonary congestion and respiratory distress.
D. The client has a five-pound weight gain:
Weight gain is a common symptom of fluid retention in heart failure; however, a specific weight gain of five pounds alone may not be indicative of left-sided heart failure without considering other clinical signs and symptoms. In heart failure, weight gain is often associated with fluid overload, which can lead to edema, dyspnea, orthopnea, and other signs of congestion. It's important to assess the client comprehensively for fluid status, including evaluating for edema, respiratory symptoms, and changes in weight over time, to determine the underlying cause of weight gain.
Correct Answer is B
Explanation
A. Administer aspirin:
Aspirin is commonly given to patients suspected of having a heart attack because it helps to inhibit platelet aggregation and reduce the risk of further clot formation. However, the administration of aspirin typically follows the confirmation of a cardiac event through diagnostic tests like the ECG. Aspirin is not the initial priority compared to obtaining diagnostic data.
B. 12 Lead Electrocardiography (ECG):
This is the most critical and time-sensitive action because it helps to quickly assess the patient's cardiac status. A 12 Lead ECG can identify important findings such as ST-segment elevation or depression, which are indicative of acute myocardial infarction (heart attack) or other cardiac abnormalities. Early detection and intervention are crucial in improving outcomes for patients with suspected cardiac events.
C. Assess vital signs:
Vital signs, including blood pressure, heart rate, respiratory rate, and oxygen saturation, provide valuable information about the patient's overall condition and can help determine the severity of the cardiac event. While assessing vital signs is important, performing the ECG takes precedence due to its immediate relevance in diagnosing and managing a potential cardiac emergency.
D. Administer morphine:
Morphine may be indicated for pain relief in patients with acute coronary syndromes. However, its administration should be based on the patient's pain level, hemodynamic stability, and other factors assessed after obtaining the ECG and vital signs. Morphine administration is not the primary action within the first 10 minutes of the patient's arrival; it follows the initial assessment and diagnostic procedures.
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