A nurse in an emergency department is caring for a client who reports substernal chest pain and dyspnea. The client is vomiting and is diaphoretic. Which of the following laboratory tests are used to diagnose a myocardial infarction? (Select all that apply.)
Myoglobin
Plasma low-density lipoproteins (LDL)
Troponin T
Troponin I
Correct Answer : A,C,D
A. Myoglobin is an early biomarker for myocardial injury and can be used for initial detection of myocardial infarction. However, it is less specific than troponins.
B. Plasma low-density lipoproteins (LDL) are associated with cardiovascular risk but are not used to diagnose an acute myocardial infarction.
C. Troponin T is a highly specific biomarker for myocardial infarction and is used to confirm the diagnosis of an MI.
D. Troponin I is another highly specific biomarker for myocardial infarction and is used to confirm the diagnosis of an MI.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["125"]
Explanation
To calculate the IV pump rate:
- Total volume of dextrose solution: 250 mL
- Time for infusion: 2 hours
- The pump rate is calculated as total volume divided by time: 250/2
- This results in a pump rate of 125 mL/hr
Therefore, the nurse should set the IV pump to deliver 125 mL/hr.
Correct Answer is B
Explanation
A. Blockage of the ET tube by the client's tongue would not typically result in asymmetric chest wall expansion.
B. If the ET tube has moved into the right main bronchus, it will cause more air to enter the right lung and less to the left, leading to decreased left-sided chest wall expansion.
C. Infection of the vocal cords is not related to the absence of chest wall expansion.
D. Passage of the ET tube into the esophagus would lead to the absence of breath sounds in both lungs, not just the left side.
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