11 Questions
Which enzymes released from necrotic cells during a myocardial infarction are more specific for heart tissue?
Lactic dehydrogenase (LDH-1) and creatine phosphokinase with M and B subunits (CKMB)
Which substance, elevated a few hours after MI, provides an earlier confirmation of a myocardial infarction?
Troponin
Which abnormal laboratory findings are common in patients with myocardial infarction, signifying inflammation?
Leukocytosis, elevated CRP, and erythrocyte sedimentation rate
Which enzyme is not typically released from necrotic cells during a myocardial infarction?
Alkaline phosphatase
Which measurements are helpful in determining ventricular function during a myocardial infarction?
Pulmonary artery pressure measurements
Which of the following is the most specific ECG change that confirms the diagnosis of a myocardial infarction?
Pathological Q waves
Which of the following serum enzymes is the earliest marker of myocardial necrosis after a myocardial infarction?
Troponin
Which of the following serum electrolyte abnormalities is most commonly seen in patients with a myocardial infarction?
Hypokalemia
Which of the following laboratory findings is NOT commonly seen in patients with a myocardial infarction?
Thrombocytosis
Which of the following measurements is the most helpful in determining ventricular function during a myocardial infarction?
Pulmonary artery pressure
Which of the following enzyme isoforms is the most specific marker for myocardial injury during a myocardial infarction?
Troponin
Test your knowledge on the typical changes in ECG and serum enzymes during myocardial infarction for diagnosis and monitoring progress. Identify the specific enzymes like LDH-1 and CK-MB that are more specific for heart tissue.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
