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

Answer and Explanation

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.

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Correct Answer is B

Explanation

A. Obtain a cardiology consult is not an immediate action for an irregular heart rate during suctioning; it is a more long-term consideration.

B. Perform pre-oxygenation prior to suctioning is the correct action to prevent hypoxia, which can cause increased heart rate and irregular rhythms during suctioning.

C. Administer an antidysrhythmic medication is not appropriate for the immediate concern of heart rate changes during suctioning.

D. Suction the client less frequently does not address the acute problem of the irregular heart rate; pre-oxygenation before suctioning is more relevant.

A. A synthetic cast weighs less. B. A synthetic cast immobilizes bone fractures more effectively. C. Drying time is prolonged with a synthetic cast. D. A plaster cast requires expensive equipment for application.

Correct Answer is A

Explanation

A. A synthetic cast is lighter in weight compared to a plaster cast, making it more comfortable for the patient.
B. Both plaster and synthetic casts effectively immobilize bone fractures; the choice often depends on the specific clinical situation and patient preference.
C. Drying time is actually shorter with a synthetic cast compared to a plaster cast, which can take up to 24-72 hours to fully dry.
D. A plaster cast does not require expensive equipment for application; the materials and application process are generally less costly compared to synthetic casts.

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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.)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is suctioning the endotracheal tube of a client who is on a ventilator. The client's heart rate increases from 86/min to 110/min and becomes irregular. Which of the following actions should the nurse take?

Correct Answer is B

Explanation

A nurse is teaching a newly licensed nurse about the difference between a plaster cast and a synthetic cast. Which of the following information should the nurse include in the teaching?

Correct Answer is A

Explanation

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