How is injury manifested on the EKG in a patient experiencing a myocardial infarction?

A. ST segment elevation: ST segment elevation is a classic sign of myocardial injury, indicating that a portion of the heart muscle is not receiving enough oxygen and is actively injured.

B. Q wave: A Q wave typically appears later, representing a previous myocardial infarction (necrosis), not acute injury.

C. Inverted T wave: This indicates myocardial ischemia, which is a precursor to injury but not indicative of injury itself.

D. ST segment depression: This is typically associated with ischemia or subendocardial infarction, not full-thickness myocardial injury.

A. Grey-Turner Sign: Grey-Turner Sign refers to bruising along the flanks, often associated with retroperitoneal hemorrhage or acute pancreatitis.

B. Steatorrhea: Steatorrhea refers to fatty stools that are pale, bulky, and foul-smelling, indicating malabsorption, not a physical exam finding on the skin.

C. Asterixis: Asterixis, also known as "liver flap," is a tremor of the hand when the wrist is extended, seen in hepatic encephalopathy, not a skin finding.

D. Cullen's Sign: Cullen's Sign is bruising around the umbilicus, indicating intra-abdominal bleeding, often seen in conditions such as acute pancreatitis or ruptured ectopic pregnancy.