Funtabulously Frivolous Friday Five 128
Just when you thought your brain could unwind on a Friday, you realise that it would rather be challenged with some good old fashioned medical trivia…introducing Funtabulously Frivolous Friday Five 128
Question 1
Melena suggests a proximal GI bleeding source in which there is time for enzymatic breakdown to transform blood to melena. How much blood in the stomach does it take to cause melena?
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50mL
In clinical experiments, placing as little as 50 mL of blood in the stomach can cause melena. [Reference]
Question 2
What is a Morel-Lavallee lesion?
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Closed de-gloving injury in which the skin remains intact but the subcutaneous tissue is sheared away from the underlying fascia.
This results in either serous or blood forming a collection in this are of tissue damage. They are associated with considerable morbidity in trauma patients.
Strictly speaking a Morel Lavallée lesion only overlies the greater trochanter, but similar biomechanical forces can result in identical lesions occur in other areas of the body. [Reference]
Question 3
What is an Essex–Lopresti injury?
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Source: Life in the Fast Lane - Category: Emergency Medicine Authors: Neil Long Tags: Frivolous Friday Five button batteries EMLA Essex-Lopresti injury melena methaemoglobinaemia morel-lavallee lesion Source Type: blogs
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