A nurse is preparing to administer metoprolol 5 mg IV bolus to a client for heart rate control. Available is metoprolol injection 1 mg/mL. How many mL should the nurse administerperdose?
The Correct Answer is ["5"]
To calculate how many milliliters (mL) of metoprolol 1 mg/mL solution should be administered to deliver a 5 mg IV bolus dose, you can use the following formula:
Dose (mL) = Desired dose (mg) / Concentration (mg/mL)
In this case:
Desired dose = 5 mg
Concentration = 1 mg/mL
Dose (mL) = 5 mg / 1 mg/mL = 5 mL
Therefore, the nurse should administer 5 mL of metoprolol 1 mg/mL solution per dose to deliver a 5 mg IV bolus for heart rate control.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. "Cardiac enzymes assist in diagnosing the presence of pulmonary congestion.": Cardiac enzymes are not used to diagnose pulmonary congestion. They are specific markers used to assess damage to the heart muscle, particularly after a myocardial infarction (MI).
B. "These tests help determine the degree of damage to the heart tissues.": This statement is correct. Cardiac enzyme studies, such as troponin levels, CK-MB (creatine kinase-MB), and LDH (lactate dehydrogenase), are used to evaluate the extent of myocardial damage during and after an MI. Elevated levels of these enzymes indicate myocardial injury.
C. "These tests will enable the provider to determine the heart structure.": While cardiac imaging studies like echocardiograms or angiograms are used to assess heart structure, cardiac enzymes are primarily used to evaluate myocardial damage and not heart structure.
D. "Cardiac enzymes will identify the location of the MI.": Cardiac enzymes can indicate the presence of an MI and the extent of myocardial damage, but they do not specifically identify the location of the MI within the heart. Additional diagnostic tests, such as electrocardiograms (ECGs) and imaging studies, are often used to determine the location of the MI.
Correct Answer is ["A","B","C"]
Explanation
A. Relieve client symptoms - Heart failure can cause symptoms like shortness of breath, fatigue, swelling (edema), and difficulty exercising. Relieving these symptoms is an important goal to improve the client's quality of life and overall well-being.
B. Extend survival - Heart failure is a chronic condition that can significantly impact life expectancy. One of the goals of care is to optimize management to extend the client's survival and reduce the risk of complications.
C. Improve functional status - Heart failure can limit a person's ability to perform daily activities and exercise. Improving functional status involves strategies such as medication management, lifestyle modifications, and cardiac rehabilitation to enhance the client's ability to engage in daily activities and maintain independence.
D. Prevent endocarditis - Endocarditis is an infection of the inner lining of the heart chambers and heart valves. While preventing infections is important for overall health, preventing endocarditis may not be directly related to the primary goals of heart failure management. However, maintaining good hygiene and avoiding infections can contribute to the overall well-being of the client.
E. Limit physical activity - This statement is incorrect in the context of heart failure management. Encouraging appropriate levels of physical activity is often part of heart failure care. Physical activity, when tailored to the individual's abilities and guided by healthcare professionals, can improve cardiovascular function, strengthen muscles, and enhance overall health outcomes in clients with heart failure.
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