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#1
04-29-2011
 USMLE Forums Guru Steps History: Step 1 Only Posts: 343 Threads: 127 Thanked 525 Times in 192 Posts Reputation: 535
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

 The above post was thanked by: Abdulaziz (09-20-2012), akasi (04-30-2011), dr akram (05-03-2011), dr_ram (04-30-2011), hugepuppy (05-02-2011), singapur_md (06-28-2011)

#2
04-29-2011
 USMLE Forums Master Steps History: 1+CK+CS+3 Posts: 1,175 Threads: 38 Thanked 854 Times in 478 Posts Reputation: 864

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

 The above post was thanked by: dr.muhamad (05-03-2011), hugepuppy (05-02-2011), INCOGNITO (10-13-2012), singapur_md (06-28-2011), v.b.kasyapa.j (04-30-2011)
#3
04-29-2011
 USMLE Forums Guru Steps History: Step 1 Only Posts: 343 Threads: 127 Thanked 525 Times in 192 Posts Reputation: 535

u are absolutely right man

#4
04-29-2011
 USMLE Forums Master Steps History: 1+CK+CS+3 Posts: 1,175 Threads: 38 Thanked 854 Times in 478 Posts Reputation: 864

Thanks!

Its just simple math, the ecfmg is out there to make us look dumb! lol
 The above post was thanked by: INCOGNITO (10-13-2012)
#5
04-29-2011
 USMLE Forums Master Steps History: Step 1 Only Posts: 567 Threads: 25 Thanked 524 Times in 263 Posts Reputation: 534

Quote:
 Originally Posted by patelMD 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 ...
 The above post was thanked by: v.b.kasyapa.j (04-30-2011)
#6
04-30-2011
 USMLE Forums Newbie Steps History: Not yet Posts: 1 Threads: 0 Thanked 0 Times in 0 Posts Reputation: 10
yaay ... i got the same answer

Quote:
 Originally Posted by patelMD 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 ....
#7
04-30-2011
 USMLE Forums Guru Steps History: 1+CK+CS Posts: 472 Threads: 29 Thanked 224 Times in 135 Posts Reputation: 247

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!!!
#8
04-30-2011
 USMLE Forums Master Steps History: 1+CK+CS+3 Posts: 625 Threads: 19 Thanked 375 Times in 221 Posts Reputation: 395

I'm going to memorize how many calories per gram of protein, fat and carb now.
#9
04-30-2011
 USMLE Forums Scout Steps History: Step 1 Only Posts: 35 Threads: 2 Thanked 5 Times in 4 Posts Reputation: 15

Quote:
 Originally Posted by cool_atomic 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?
#10
05-03-2011
 USMLE Forums Newbie Steps History: Not yet Posts: 5 Threads: 1 Thanked 3 Times in 2 Posts Reputation: 13

is that really kinda board question??
though not difficult but took time
#11
05-03-2011
 USMLE Forums Guru Steps History: 1 + CS Posts: 300 Threads: 22 Thanked 97 Times in 62 Posts Reputation: 107
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
#12
05-03-2011
 USMLE Forums Master Steps History: 1+CK+CS+3 Posts: 1,175 Threads: 38 Thanked 854 Times in 478 Posts Reputation: 864

Quote:
 Originally Posted by dr.muhamad 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.
 The above post was thanked by: INCOGNITO (10-13-2012), singapur_md (06-28-2011)

 Tags Biochemistry-, Step-1-Questions

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