Sunday, April 29, 2012

Quiz #14: 12-lead EKG

Question 1: What is the diagnosis?

Question 2: Please provide 2 salient findings that support the diagnosis.

(Click on the image for enlarge)


Monday, April 23, 2012

Quiz #13: Statistics - Z-score

A newborn (weight 3 kg, length 50 cm) has aortic valve annulus of 6.0 mm. One published report states the following normal values for aortic valve annulus in newborns of same body size: Mean 7.3 mm & Range of 6.38 mm – 8.22 mm (Range is reported as 2 standard deviations from the mean).
Question 1: What is the Z-score of our patient with 6.0 mm diameter?
Bonus Question: Please provide the steps of deriving the Z-score.

Link to the answer

Sunday, April 8, 2012

Quiz #11: CVP trace

The two snap shots were taken 1 minute apart from a postoperative patient.
What is the difference between the CVP traces in each of the panels? (Top panel - Clock time is 13:44 Hrs and Bottom panel - Clock time is 13:45 Hrs).
Click on the image to enlarge.


Link to the answer