A nurse is reviewing the laboratory values of a client who had a myocardial infarction 3 hr ago. The nurse should expect which of the following laboratory values to be elevated?
Serum amylase
Unconjugated bilirubin
Aspartate aminotransferase (AST).
Troponin I
The Correct Answer is D
A. Serum amylase: Serum amylase is an enzyme associated with pancreatic function, and its elevation is not specific to myocardial infarction.
B. Unconjugated bilirubin: Elevation of unconjugated bilirubin is associated with liver function and hemolysis, not specifically with myocardial infarction.
C. Aspartate aminotransferase (AST): While AST may be elevated in conditions affecting the heart, it is not as specific or sensitive for myocardial infarction as troponin I.
D. Troponin I: This is the correct answer. Troponin I is a cardiac-specific biomarker released into the bloodstream when there is damage to cardiac muscle, such as during a myocardial infarction. Troponin I levels start to rise within 3-4 hours after the onset of myocardial infarction, making it a crucial marker for early detection.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Flexing her ankles: Ankle flexion exercises and periodic ankle flexion are encouraged to promote blood circulation and prevent venous stasis, which can contribute to the development of venous thromboembolism (VTE).
B. Elevating her feet: Elevating the feet can also help prevent venous stasis and promote blood circulation. It is a recommended action to reduce the risk of VTE.
C. Massaging her legs: This is the correct answer. Massage of the legs, particularly deep tissue massage, can dislodge blood clots and increase the risk of embolization, including the risk of venous thromboembolism.
D. Ambulating soon after surgery: Early ambulation is an important preventive measure for VTE. It helps stimulate blood flow and prevents venous stasis. Encouraging the client to ambulate as soon as possible after surgery is a recommended practice.
Correct Answer is B
Explanation
A. Instruct the woman to call 911: This is a correct action, but it should be the second step after the nurse initiates first aid measures. Directing someone to call for emergency assistance is crucial, but immediate intervention to relieve the choking takes precedence.
B. The Heimlich maneuver involves abdominal thrusts and is the recommended technique for relieving choking in a conscious person. It is essential to act quickly and decisively to clear the airway.
C. Ask the partner if he can speak: If the person is unable to speak, cough, or breathe, it may indicate complete airway obstruction. The nurse should not delay intervention by asking if the person can speak but should immediately proceed with measures to relieve the choking.
D. Perform chest compressions: Chest compressions are not indicated for a conscious choking victim. Chest compressions are performed in the context of cardiopulmonary resuscitation (CPR) for an unconscious person with no pulse.
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