Colombia
Forum Guru
Topics: 85
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MAP is equal to:
1-s+1/3d
2-d+1/3s
3-1/3s+d
4-d+1/3s
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| asmi
Forum Hero
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D+1/3 pulse pressure
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| Colombia
Forum Guru
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| EMI777LY
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what is it D
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Emily
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| Colombia
Forum Guru
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D means diastolic pressure
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| EMI777LY
Forum Senior
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Thank you
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Emily
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| usmle prep
Forum Senior
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MAP=1/3 S+2/3 D
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| bright_nnn
Forum Senior
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Posts: 97
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I totally agree with asmi
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| Bela
Forum Guru
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hmmm, I thought the formula for MAP was: 1/3S + 2/3D and this could be reduced to D + 1/3 PULSE P. :?
Can someone clarify it?
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La vita e bella!
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| usmle prep
Forum Senior
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u can use any of the the formula,result is same.
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| jay1
Forum Junior
Topics: 18
Posts: 53
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Any formula that calculates MAP must give a value between systolic and diastolic but closer to diastolic than systolic.
Mean Pressure = Diastolic + 1/3 Pulse Pressure
OR
=2/3 DIASTOLIC +1/3 SYSTOLIC
Remember,
Pulse Pressure = Systolic - Diastolic
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| Bela
Forum Guru
Topics: 76
Posts: 412
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No USMLE prep, I don't think that you get the same result from using any of the formulas.
The initiator of this topic was saying that MAP=D + 1/3S whereas I read in the physio book that MAP=2/3D + 1/3S = D + 1/3 Pulse P.
Now, to check if the first formula is the same as the other two, make D=3 and make S=9. When you do ur calculations, u'll come up with 6 as an answer for the first formula. But you end up with 5 if you try the traditional way or if you use the Pulse P.
See my point? But I don't know whether this is significant or not!!!
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La vita e bella!
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| canstep1
Forum Junior
Topics: 6
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Bela, the MC answers in the question are all wrong .. 
I think it may have been a typo...
as was stated before
MAP = D + 1/3PP = 2/3D + 1/3S
USMLE prep was referring to these 2 formulas as being interchangeable since PP = ESP - EDP
Hope that clears ur confusion.
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| usmle prep
Forum Senior
Topics: 21
Posts: 100
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i agree with canstep1.
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| black_tulip
Forum Senior
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Posts: 95
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MAP=D+1/3(S-D)=2/3D+1/3S
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