A patient admitted to the unit displays the following cardiac rhythm on telemetry. What is the estimated heart rate?

120 beats/minute
80 beats/minute
40 beats/minute
Unable to calculate with the strip provided.
The Correct Answer is B
The RR interval is 7.5 big boxes, multiplied by 10 makes it 75, rounded off is 80 beats per minute.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. "The decreased HDL level will increase the amount of cholesterol moved away from the artery walls":
This statement is incorrect. High-density lipoprotein (HDL) is often referred to as "good" cholesterol because it helps remove excess cholesterol from the bloodstream and transport it to the liver for processing. A decreased HDL level is associated with an increased risk of cardiovascular disease, not with moving cholesterol away from artery walls.
B. "Increased LDL and decreased HDL increase my risk of coronary artery disease":
This statement is correct. Low-density lipoprotein (LDL) is often referred to as "bad" cholesterol because elevated LDL levels contribute to the buildup of plaque in the arteries, increasing the risk of coronary artery disease (CAD). Conversely, decreased HDL levels are associated with reduced cholesterol removal from the bloodstream, further increasing the risk of CAD.
C. "Increased LDL has the potential to decrease my risk of heart disease":
This statement is incorrect. Elevated LDL levels are a major risk factor for heart disease and are associated with an increased risk of atherosclerosis and cardiovascular events.
D. "The increased LDL will decrease the amount of cholesterol deposited on the artery walls":
This statement is incorrect. Increased LDL levels contribute to the deposition of cholesterol on artery walls, leading to the formation of plaque and narrowing of the arteries, which is detrimental to heart health.
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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