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Ecg 2.2

The document contains a series of questions and answers related to Ischemic Heart Disease and myocardial infarction, including topics such as oxygen supply imbalance, vasoconstrictors, and ECG patterns. It highlights correct answers for various medical questions, with explanations for incorrect responses. Key topics include the most common causes of myocardial infarction and the significance of specific ECG findings.

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nss rao
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9 views3 pages

Ecg 2.2

The document contains a series of questions and answers related to Ischemic Heart Disease and myocardial infarction, including topics such as oxygen supply imbalance, vasoconstrictors, and ECG patterns. It highlights correct answers for various medical questions, with explanations for incorrect responses. Key topics include the most common causes of myocardial infarction and the significance of specific ECG findings.

Uploaded by

nss rao
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Ischemic Heart Disease occurs typically when there is an imbalance between myocardial Oxygen supply and

True
False
Yes, the answer is correct.
Score: 1
Accepted Answers:
True
Most powerful Vasoconstrictor secreted by endothelial cells

Nitric oxide
Prostacyclin
Adenosine
Endothelin
Yes, the answer is correct.
Score: 1
Accepted Answers:
Endothelin
The most common site of myocardial infarction is

Inferior wall
Anterolateral
Posterior wall
Interventricular septum
No, the answer is incorrect.
Score: 0
Accepted Answers:
Anterolateral
Commonest cause of myocardial infarction is due to

Coronary atherosclerosis with rupture of atheromatous plaque


Vasospasm due to drugs
Coronary embolism
Anemia
Yes, the answer is correct.
Score: 1
Accepted Answers:
Coronary atherosclerosis with rupture of atheromatous plaque
The phase of the action potential of ventricular muscle that coincides with the QRS complex of the electrocard

Phase 0.
Phase I.
Phase II.
Phase III.
No, the answer is incorrect.
Score: 0
Accepted Answers:
Phase 0.
The electrocardiogram associated with accelerated conduction of impulses in the conducting system of the he

Absent ‘P’ waves.


Shortened P-R intervals.
Raised S-T segment.
Tented ‘T’ waves.
No, the answer is incorrect.
Score: 0
Accepted Answers:
Shortened P-R intervals.
A patient in the coronary care unit develops episodes of paroxysmal AV nodal reentrant (PSVT). What drug wo
line for promptly stopping the arrhythmia?

Adenosine
Digoxin
Edrophonium
Phenylephrine
No, the answer is incorrect.
Score: 0
Accepted Answers:
Adenosine
A 57 year old woman presents to the hospital with a 2 hour history of retrosternal chest pain and dyspnea. He
an acute myocardial infarction pattern. Which of the following ECG patterns is consistent with that interpretatio

Tall P waves
Elevated ST segments
Prominent U waves
Widened QRS complex
No, the answer is incorrect.
Score: 0
Accepted Answers:
Elevated ST segments
Tall T wave in ECG occurs in

Hypercalcemia
Hypocalcemia
Hyperkalemia
Hypokalemia
No, the answer is incorrect.
Score: 0
Accepted Answers:
Hyperkalemia
In an individual with suspected myocardial infarction of 24 hrs duration, the serum enzyme estimation of choic

Lactate dehydrogenase
Myoglobin
Creatine phosphokinase MB
Oxaloacetate transaminase
No, the answer is incorrect.
Score: 0
Accepted Answers:
Creatine phosphokinase MB

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