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.

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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.


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Quiz #10: Clinical Examination

Question 1: What is the sign in figure 1 called?

Question 2: What is the sign in figure 2 called?

Question 3: According to new diagnostic criteria for this condition, if both these signs are positive in a child, how many "System Score" points does the child get?

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Quiz #9: Where is the tip of the PA line?

This patient returned from operating room 20 minutes ago. He has a pulmonary artery line. What is the location of the PA line tip based on the CXR and the PA pressure trace?
Clue: PA line pressure trace holds the answer. CXR helps to corroborate.

(To see a larger image, click on the image)
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Quiz #8: Barium Swallow Study

Question 1: Describe the salient findings.
Question 2: What is the diagnosis?


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Quiz #7: Barium Swallow study

Question 1: Describe the finding in PA view.
Question 2: Describe the finding in Lateral view.
Question 3: What is the diagnosis?

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Quiz #6: Barium Swallow Study

Esophagogram:
1) Describe the finding.
2) What is the diagnosis?

Additional "bonus" questions:
3) What tracheal anomaly is associated with this condition?
4) What is the common cardiac defect associated with this condition?

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