Quiz #40: EKG

EKG from a 1-day old newborn is given. Patient was consulted by NICU for "bradycardia" (~90 bpm). Clue: V1 rhythm strip provides good wave form to evaluate.

Questions:
1) What is the cause of the relative "bradycardia"?
2) Explain why A-V block is not the primary diagnosis.

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Quiz #39: Where is the catheter?

Two sets of images (PA & Lateral views in each) taken from the same angiogram - before and during contrast injection. This patient with tricuspid atresia is undergoing pre-Glenn catheterization.

Questions:
1) Trace the catheter course.
2) In which chamber is the catheter tip?
3) Comment on the great arteries relationship (normally-related or otherwise).
4) Based on answers to above questions, what classification type of tricuspid atresia is this?

Link to the answer

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