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  #1  
Old 04-06-2011
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Biochemistry Hair Loss and Diarrhea Biochemistry Question

A 25 year old female is seen in clinic 2 years following successful bariatric surgery.
She has lost 140 pounds from a preoperative weight of 250 pounds. Upon referral for body contouring surgery, it is discovered that she has recently had several weeks of hair loss and diarrhea despite no change in her diet. Which deficiency does she most likely have?

A. Riboflavin
B. Pantothenic acid
C. Zinc
D. Ascorbate
E. Biotin
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  #2  
Old 04-06-2011
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zinc? are vitamin deficiencies high yield for boards?
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  #3  
Old 04-06-2011
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Quote:
Originally Posted by tinhi View Post
A 25 year old female is seen in clinic 2 years following successful bariatric surgery.
She has lost 140 pounds from a preoperative weight of 250 pounds. Upon referral for body contouring surgery, it is discovered that she has recently had several weeks of hair loss and diarrhea despite no change in her diet. Which deficiency does she most likely have?

A. Riboflavin
B. Pantothenic acid
C. Zinc
D. Ascorbate
E. Biotin

Hair Losss & Diahrrea. Very broad but lets have a go through:

A. Riboflavin.. could be
B. Panthothenic Acid.. could be
C. Zinc.. cant be
D. Ascorbate.. can't be
E. Biotin.. deficiency is rare.. only found if there's raw egg eating (not a feature of the history..) so .. eliminated.

I would guess between A or B.

Lets go with B because of the hair loss!
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Old 04-07-2011
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Default I'll go with C. Zinc

I'm not sure we can eliminate any of them - bariatric surgery could result in any of those deficiencies, even biotin. When I saw that it was two years later, I thought of the fat-soluble vitamins, then pyridoxine or B12, but they weren't there.. so I guess that zinc is my best guess based on the hair loss and diarrhoea.
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  #5  
Old 04-07-2011
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The correct answer is C.


Although zinc and biotin deficiency can both lead to alopecia,
biotin deficiency is very rare, whereas zinc deficiency is relatively common in patients with malabsorption (e.g. s/p bariatric surgery or sprue)

biotin deficiency is not known to cause diarrhea, whereas diarrhea is a common feature of zinc deficiency
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  #6  
Old 04-07-2011
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Quote:
Originally Posted by Mondoshawan View Post
I'm not sure we can eliminate any of them - bariatric surgery could result in any of those deficiencies, even biotin. When I saw that it was two years later, I thought of the fat-soluble vitamins, then pyridoxine or B12, but they weren't there.. so I guess that zinc is my best guess based on the hair loss and diarrhoea.
the main complain here is alopesia!! and only Zinc and biotin can cause this symptom
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  #7  
Old 04-27-2011
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Arrow I think it happens .....

I think it happens becoz of zink deficiency only.


Smith Alan
viagra online
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Old 04-27-2011
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Could be pantothenate acid or biotin, zinc don't cause diarrhea.

I'm choosing pantothenate acid because the lady here got fat absorption deficiency and the B5 is require for fatty avid synthesis. Alopecia and diarrhea fits over B5.

Biotin could be but too rare for me to choose it.


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Old 04-27-2011
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Why can't it be Pantothenic acid? It is even included in hairwash products to strengthen hair... Vit B5 deficiency includes alopecia and because it's a B vitamin, its deficiency could produce diarrhea as well. Well its deficiency is rare but considering this pt has had a major weight loss (something unusual)..it could fit in..right? Where was this question taken from?
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Old 04-27-2011
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Quote:
Originally Posted by Triquetrum View Post
Why can't it be Pantothenic acid? It is even included in hairwash products to strengthen hair... Vit B5 deficiency includes alopecia and because it's a B vitamin, its deficiency could produce diarrhea as well. Well its deficiency is rare but considering this pt has had a major weight loss (something unusual)..it could fit in..right? Where was this question taken from?
As i said, for me that's the correct answer...
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  #11  
Old 04-27-2011
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Default my best guess is biotin

well both biotin and pantothenic acid causes dermatitis enteritis and alopecia.....and moreover pantothenic acid also causes adrenal insufficiency that means lack of aldosterone..which we don't see in question stem...

biotin deficiency is rare but can be caused due to excess antibiotics use in generall....

both deficiency can be triggered in this particular patient but pantothenic acid will screw up with ions also....

zn deficiency decreases the hair around axillary, facial and pubic region but not scalp.... so its def. doesn't cause alopecia

really good question...i'm with biotin on this one
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Old 04-27-2011
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Zinc zinc zinc .........................................zinc
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Old 04-28-2011
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Quote:
Originally Posted by dr_rachitmangal View Post
well both biotin and pantothenic acid causes dermatitis enteritis and alopecia.....and moreover pantothenic acid also causes adrenal insufficiency that means lack of aldosterone..which we don't see in question stem...

biotin deficiency is rare but can be caused due to excess antibiotics use in generall....

both deficiency can be triggered in this particular patient but pantothenic acid will screw up with ions also....

zn deficiency decreases the hair around axillary, facial and pubic region but not scalp.... so its def. doesn't cause alopecia

really good question...i'm with biotin on this one
I think that biotin deficiency symptoms would show up after a few weeks rather than a few years
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Old 04-28-2011
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well after u point out that one i reread the question....n to my surprise the question never actually mentioned anything bout alopecia..it juz said hair loss...so now i'm thinking of Zinc too

i should read the questions more carefully from next time...every question matters
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Old 02-02-2012
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Eat zink containing food.


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Old 05-12-2013
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Default Yes my exam loaded with them

Quote:
Originally Posted by absolutjag9 View Post
zinc? are vitamin deficiencies high yield for boards?
Unbelievable amount of hidden toxicities and deficiency.
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