Tuesday, November 1, 2016

Study ECG ( For Postgraduate exams)


Regarding the ECG given above select five statements which are true from the list below:
a. Ventricular tachycardia.
b. Left axis deviation.
c. Voltage for left atrial enlargement.
d. LBBB.
e. Right axis deviation.
f. Voltage criteria for right ventricular hypertrophy.
g. RBBB.
h. Voltage criteria for right atrial enlargement.
i. Voltage criteria for left ventricular hypertrophy.
j. Dissociated P-waves.
k. Capture beats.
l. Delta waves.

Answer:

b. Left axis deviation.
c. Voltage for left atrial enlargement.
f. Voltage criteria for right ventricular hypertrophy.
g. RBBB.
h. Voltage criteria for right atrial enlargement

Discussion:
- Bundle branch block is characterized by a wider QRS complex (more than 120 ms; three small squares on the ECG). In RBBB the QRS complex in lead VI has an rsR pattern and in LBBB the QRS complex in lead VI has a qS pattern.
- Information regarding atrial enlargement is gained from leads II and V1
- Information regarding voltage criteria for ventricular hypertrophy is gained from leads V1 and V5, particularly if the Sokolow’s criteria (most commonly used) are to be applied.

1 comment:

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