Why won't doctors answer the Question?

Question

There is an Elephant standing in the Drawing Room of the medical profession, and it won't go away.

Particularly, it won't disappear by getting my question removed from Answers on a technicality.

The Elephant is simply that the numbers don't add up. If the Mean Pressure Equation is right, then either the cardiac output or the TPR is wrong (or both).

The doctors can't have it both ways. That's just walking round and round the room., pretending that the elephant isn't there.

The Elephant IS there, and whether my question is deleted or not, it won't go away - honestly!! Why not just face up to the Question, and answer it?

Answer 1

I Like to drink beer and answer questions, I can see a Pink Elephant, does that help?

Answer 2

Enough with the Elephants already. Please state your greivance and perhaps re-state your question.  I am sure there is someone who can answer a civil question.  

Answer 3

This doesn't make any sense!!!

Answer 4

I think hes using a meaphor arnt u ,or u take alot of drugs lol

Answer 5

Because they're doctors. Duh.

Answer 6

And you dress up in womens clothing?

Answer 7

Probably because they do not understand the question.  Nobody else understands the question because the cgs system went out 40 years ago with the fps system, which were replaced by the MKS system, which itself has given place to the Systeme International.

Zteeger has done his best, but the basic problem is that the medical profession has a deliberately obfuscatory literature, originally to fool patients into thinking they knew what they were doing, now they are confusing themselves as well.

For instance the greek for acorn is glans, how many physicians know that?  Why not call it the acorn, then everyone will know what is being discussed.

Answer 8

Increasing resistance decreases cardiac output, and conversely decreased resistance increases cardiac output.

This can be explained mathematically:

By simplifying Darcy's Law, we get the equation that

    Flow = Pressure/Resistance

When applied to the circulatory system, we get:

    Q = (MAP – RAP)/TPR

Where MAP = Mean Aortic (or Arterial) Blood Pressure in mmHg,

    RAP = Mean Right Atrial Pressure in mmHg and

TPR = Total Peripheral Resistance in dynes-sec-cm-5.

However, as MAP>>RAP, and RAP is approximately 0, this can be simplified to:

    Q ≈ MAP/TPR

For the right heart Q ≈ MAP/PVR, while for the left heart Q ≈ MAP/SVR.

Physiologists will often re-arrange this equation, making MAP the subject, to study the body's responses.

Q is also the product of the heart rate (HR) and the stroke volume (SV), which allows us to say:

    Q ≈ (HR x SV) ≈ MAP / TPR