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Old 04-29-2011
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Biochemistry Making up for fat by Carbohydrates Grams!

After a routine physical exam and work a woman with a normal weight for her height was advised that her lipid profile showed an elevated blood triglycerides...
The doctor advised her to lower fat consumption which disappoints her as she avidly takes whole milk...
the woman consults a nutritionist who states that whole milk is 3.5% fat, which corresponds to approx. 11g of fat in an 8 oz serving...
IF SHE SWITCHES TO DRINKING SKIM MILK (NON FAT), approx how much additional grams of Carbs should be consumed to make up for the loss of fat in 8 oz serving..

1) 5 g
2) 11 g
3) 25 g
4) 156 g

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Old 04-29-2011
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1 g of fat = 9 calories

11 g of fat = 11 x 9 = 99 calories from 8 oz serving

1 g of carb = 4 calories

so therefore, we do 99/4 to determine the amount of carbs needed to replace the loss.

= 24.7

so closest is 3) 25 g

Im not fully sure about this one.
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Old 04-29-2011
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u are absolutely right man
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Old 04-29-2011
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Thanks!

Its just simple math, the ecfmg is out there to make us look dumb! lol
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Old 04-29-2011
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Quote:
Originally Posted by patelMD View Post
Thanks!

Its just simple math, the ecfmg is out there to make us look dumb! lol
Nice approach, i though the same but got stuck at the math ...
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Old 04-30-2011
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Idea! yaay ... i got the same answer

Quote:
Originally Posted by patelMD View Post
1 g of fat = 9 calories

11 g of fat = 11 x 9 = 99 calories from 8 oz serving

1 g of carb = 4 calories

so therefore, we do 99/4 to determine the amount of carbs needed to replace the loss.

= 24.7

so closest is 3) 25 g

Im not fully sure about this one.
Its perfect ....
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Old 04-30-2011
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is this really a USMLE style question because i definitely did not see anything close to this type or standard on my STEP-1!!! but its a good question though!!!
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Old 04-30-2011
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I'm going to memorize how many calories per gram of protein, fat and carb now.
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Old 04-30-2011
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Originally Posted by cool_atomic View Post
is this really a USMLE style question because i definitely did not see anything close to this type or standard on my STEP-1!!! but its a good question though!!!
wat do u mean ?? were the questions too easy or too hard?
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Old 05-03-2011
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is that really kinda board question??
though not difficult but took time
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Old 05-03-2011
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Default Man why u did all that

hey man you should have just made this to see approximate like fat gives almost double calories as carb do coz 1 garm fat give 9 kcal and 1 gram carb give 4 so all u have to do is 11* 9/4 =24.7 =25 u dont have to convert to calories i noticed that med students are weak in math so the step 1 noticed that so they made easy math questions
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Old 05-03-2011
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Quote:
Originally Posted by dr.muhamad View Post
hey man you should have just made this to see approximate like fat gives almost double calories as carb do coz 1 garm fat give 9 kcal and 1 gram carb give 4 so all u have to do is 11* 9/4 =24.7 =25 u dont have to convert to calories i noticed that med students are weak in math so the step 1 noticed that so they made easy math questions
Yea, I see what you are saying, but I simplified each step so we the med students who suck at basic math could understand.
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