Can alcohol relieve intravascular hemolysis symptoms?mechanism?

[pzh200707]

A 29-year-old rugby player takes part in a particularly contentious game between New Zealand and South Africa. He is the forward prop in the scrums, hitting hard and being hit hard by other players. He feels better after downing several pints of beer following the game, but notes darker urine. Urinalysis is positive for blood. Which of the following pathogenic mechanisms underlies change in the color of urine?
A Complement lysis
B Intravascular disruption
C Osmotic fragility
D Sinusoidal sickling
E Splenic sequestration
robbins review
Answer B

any ideas? thanx

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[zhopv10]

I think the alcohol might be a bit of a distractor. Maybe just shows that he got way beat up so he wanted to be "numbed up" or something. Large amounts of trauma can cause damage to the RBC'a in the small vessels. Marathon runners can see the brown urine. Goljan talks about this. There might be something more but that's what I would think.

 

[tasar1898]

Yep alcohol has no role here..They just put it there to distract you . The answer is ''squish'' macrovascular hemolysis , also common in marathon runners. Could also be trauma-related rhabdomyolysis since Urinanalysis cant differentiate between Hb and myoglobin but it ain't in the answer choices