Quiz #18: EKG Rhythm Strip

This is an EKG recorded in a 2-day baby (Tetralogy of Fallot) after cardiac catheterization.

Question: What is this catheter-induced rhythm?

Link to answer

(Click on the image to enlarge)

Quiz #17: Arterial pulse trace

Below is ICU monitor display for a teen ager.

Question 1: What is the name of the pulse for the pattern shown in the arterial line trace?

Question 2: Name 3 causes for this pattern of pulse in any patient?

Link to the answer.

(Click on the image to enlarge)

Quiz #16: Echocardiogram - Pericardial effusion - M mode

Image below is M-mode recording in parasternal short axis view, in a patient with pericardial effusion. What ominous sign is being demonstrated in this image?

(Click on the image for larger image)

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Quiz #15: 12-lead EKG - Inverted P

Question: What is the diagnosis for the inverted P?

(Clue: You may compare with the EKG in Quiz #14)

Click on the image to enlarge.

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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)

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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.


Link to the answer