// ECG //

Question 1

main ECG abnormality seen with hypercalcaemia

Answer 1

shortening of the QT interval

background of prostate cancer. Cancer is the most common cause of hypercalcaemia in hospital, and approximately 20-30% of patients with cancer develop hypercalcemia.

Question 2

Prolongation of the QT interval can be caused by?

Answer 2

hypokalemia, hypomagnesaemia and hypocalcemia. It can also be caused by hypothermia, myocardial ischemia and congenital long QT syndrome.

Question 3

Fixed prolonged PR interval is seen with?

Answer 3

first-degree heart block.

Question 4

Tall T waves are seen in?

Answer 4

hyperkalemia

Question 5

ECG changes with hyperkalemia?

Answer 5

Tall T waves

PR PROLONGATION AND EVENTUALLY A SINE-WAVE APPEARANCE.

FLATTENED P WAVES,

Question 6

ECG for pericarditis ?

Answer 6

diffuse saddle-shaped ST elevation

Question 7

hypokalaemia ?

Answer 7

Thiazides/ amphotercin B may cause hypokalaemia

prolonged PR interval
prolong QT
prominent U waves after t wave
Flattened T waves
ST-segment depression

Question 8

when is P mitral seen ?

Answer 8

left atrial hypertrophy due to mitral stenosis (mitral stenosis - mid diastolic murmur)