ECG

Question 1

Hypercalcemia

Answer 1

Shortened QT interval, J waves, VF

Question 2

Hypocalcemia

Answer 2

QTc prolongation, ST segment prolongation, Torsades

Question 3

Hyperkalemia

Answer 3

Peaked T waves, PR prolongation, QRS widening, conduction blocks, Wide P waves

Question 4

Hypokalemia

Answer 4

U waves (also seen in bradycardia), T wave flattening, prolonged PR interval

Question 5

Hypomagnesemia

Answer 5

Prolonged PR interval, Prolonged QT interval, atrial and ventricular ectopy, predispose to Torsades and VT

Question 6

Raised ICP

Answer 6

T waves inversion, QT prolongation, Bradycardia

Question 7

Upright T waves in V1 in childhood after 1st week of life denotes

Answer 7

Abnormality, right ventricular hypertrophy. Upright T waves in the neonate can be normal in first 2 to 3 days but should invert by week 1 of life

Question 8

Children commonly have inverted T waves in

Answer 8

V1 V2 and V3

Question 9

Superior axis on ECG (equivocal or negative V1 and negative avF)

Answer 9

AVCD, Noonan’s syndrome