Question
Identify the sign as shown in the picture below ?
A. Schamroth’s sign.
B. Digital index sign.
C. Phalangeal depth ratio.
D. None of the above.
Show Answer
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Correct Answer » A Explanation |
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The sign shown in the picture above represents Schamroth’s sign.
Schamroth’s sign
- Combines qualities of nail-fold angle and phalangeal depth ratio
- Have patient oppose index fingers so that they’re nail-to-nail, pointing downwards
- Negative/normal: diamond-shaped window (arrowhead) is created
- Positive/abnormal: obliteration of diamond shape