solving blood pressure

[fkl2867]

i not sure how to solve this equation, please help. this is the problem.
pp= 120 (systolic) - 72 (diastolic) = mm hg i believe this is 48 and thats my pp #
mbp = 72 (diastolic) = /3 (pp) = mm hg

pp is pulse preasure
mbp is mean blood preasure

if you could show me step by step that would be great, math is a weak subject for me thank you

 

[mmm4444bot]

[I'm] not sure how to solve this equation … What equation? (Your use of the pronoun "this" is unreferenced!)

… this is the problem … No, it is not. You have not typed the given instructions; there is no question stated below.

… believe this is 48 and [that's] my pp … Yes, 120 - 72 = 48. Pulse pressure = 48 mm Hg.

(Were you given the systolic and diastolic measurements?)

… mbp = 72 (diastolic) = /3 (pp) = mm hg … This line makes no sense. Please double-check your typing.

… if you could show me step by step that would be great … If you could provide the entire exercise, along with your reasoning, that would be great, too.

There is no formula to determine mean blood pressure. An accurate systolic mean and an accurate diastolic mean are only achieved by averaging several readings taken over the course of weeks.

However, there is a formula for calculating mean arterial pressure (MAP).

MAP = [Cardiac Output] * [Systemic Vascular Resistance] + [Central Venous Pressure]

There are two formulas that I've used for estimating MAP, which may explain why your nonsense equation above contains a division by 3.

Estimation Method #1:

MAP ? (2 * DBP + SBP)/3

Estimation Method #2:

MAP ? DBP + (1/3) * PP

where SBP is systolic blood pressure, DBP is diastolic blood pressure, and PP is pulse pressure.

BTW, these two estimation methods apply when the patient has a normal resting heart rate. If the patient is tachycardiac, then MAP is better estimated using the arithmetic mean of SBP and DBP.

Have you been asked to estimate MAP using SBP = 120 and DBP = 72 ?

We can't read your mind!

 

[fkl2867]

sorry i wasn't clear on the example, i did figure it out and the 2 equations that you gave were the equations that i used. thanks for the help

 

[mmm4444bot]

… i did figure it out and the 2 equations that you gave were the equations that i used.

Score!

(What a guess, on my part.)