How is injury manifested on the EKG in a patient experiencing a myocardial infarction?
ST segment elevation
Q wave
inverted T wave
ST segment depression
The Correct Answer is A
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Ask a family member to interpret what the client is trying to communicate: While family members can sometimes help, the nurse should directly facilitate communication with the client using appropriate tools.
B. Ask the physician to wean the client off the mechanical ventilator to allow the client to talk: Weaning off a ventilator should only be done based on medical stability, not solely for communication purposes.
C. Ask the client to write, use a picture board, or spell words with an alphabet board: These tools can help non-verbal clients on mechanical ventilation express themselves and reduce frustration.
D. Assure the client that everything will be all right and that he shouldn't become upset: This response is dismissive and does not address the client's need to communicate.
Correct Answer is ["A","D"]
Explanation
A. HAV: Hepatitis A is spread via the fecal-oral route, often through contaminated food or water.
B. HCV: Hepatitis C is primarily spread through blood-to-blood contact, not the fecal-oral route.
C. HDV: Hepatitis D is spread through blood contact and requires Hepatitis B for replication.
D. HEV: Hepatitis E is spread through the fecal-oral route, similar to Hepatitis A.
E. HBV: Hepatitis B is spread through blood, sexual contact, and perinatal transmission, not the fecal-oral route.
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