Human Inhalation Pressure?
928334
Are you talking about the positive end expiratory pressure (PEEP)? The mean airway pressure or the alveolar pressure in the lungs? All have slightly differing values. These are usually measured in mm Hg or cm H2O. All airway gas exchange is performed through passive diffusion in the aveoli of the lungs. Air must be at normal atmospheric pressure at 760 mmHg for most efficient gas exchange to occur. \nAir at higher altitudes has lower pressure, so one must work harder, in physiological terms to enable the diffusion of oxygen. usually for mountain climbers, this means increased rates of respiration. At high enough altitudes, you cannot get enough oxygen with respiratory effort and you pass out from hypoxia.\nAt higher pressures (underwater) gas diffusion occurs more quickly, and you must use less oxygen to get the same blood oxygenation level as you wold at sea level. This is why divers use a NOx mix, and not pure oxygen underwater, if they did, they would develop oxygen narcosis very quickly.
507971
With a pressure gauge.
737309
use a can of compressed air
1006329
Normally between 5-7 liters, depending on the size of the person, or 7-8% of the persons body weight
1004905
Everything is fine.  It is just the changes in pressureas the plain goes up and down.  When the plain is taking off swallow or chew gumm to help them adjust to the lower amounts of pressure, and then when it is landing hold your nose closed and try to breath through it until you feel the pressure change.  don't do it too hard though and stop once the pressure changes in your ears.  Repeat this as necessary.  It can be pretty confusing and weird at first huh?  Nothing is wrong with you though.
41699
external air pressure is greater than that in the lungs at the end of the inhalation. you relax and the air is passively "squeezed out" by the higher air pressure outside our bodies. When we inhale, we tighten our chest muscles and diaphram and expand our chests creating low pressure, then the air goes in, starting the proceedure all over.
803179
Changes in air pressure and possibly humidity.  Your body turns into a barometer.
131400
I believe it was around 300 psi.
155612
With the help of someone who knows a lot about how to handle substances like this, try filling and weighing a balloon or football or something with different gasses and weigh them. Or you could blow something up carefully (always very fun but dangerous) by testing the breaking point of pressure with different gasses. The only problem is that whatever you are filling up must be the exact same for every test (in terms of it's limit with pressure) and you need to pump regular air into a control balloon. Good luck!
596255
I think you will find all you need on this site :-\nhttp://www.medicomm.net/Consumer%20Site/am/accupressure.htm\n\nTake Care and God Bless !
20805
The mechanism that drives a human to breath is dependent upon CO2 receptors in the body--both peripheral chemo receptors and central chemo receptors. As with all receptors in the body (excluding pain receptors) they will adapt when exposed to a stimulus over a long period of time. A person known to retain CO2 has long since been exposed to elvated CO2 levels and the CO2 receptors have adapted.  For this type of patient--their drive to breathe is no longer driven by elevated CO2 levels. They rely primarily on oxygen sensitive chemo receptors. (When the oxygen level in the arterial blood--PAO2 falls below 60mmhg-it will tell the respiratory control centers in the brain to initiate respiration.) Administering high levels of oxygen to an individual such as this can be harmful and dangerous. High levels of supplemental oxygen raise the PAO2 levels--therefore the oxygen chemo recptor never sends the signal to the respiratory center to breathe. This will knock out the patients only remaining chemical signal to initiate respirations. \nIf your goal is administer a medication via a nebulizer (ie the standard one on the market) the use of moderate flow (5 LPM) of oxygen should not significantly elevate the PAO2 levels. The nebulizer is not a closed system and therefore is mixed with room air the only has an oxygen concentration of 21%. Ideally, the use of compressed air is utilized for such treatments.
155279
By measuring the change in pressure.
58327
Pressure goes up as temperature goes up.
1015175
As one inhales air, the pressure inside the chest decreases. This is because the diaphragm lowers during inspiration and increases the volume of the chest. Lower pressure in the chest means that blood can more easily return to the chest (and therefore the heart). Therefore, during inspiration (or inhalation) there is increased venous return (blood coming back to the heart).
312810
compressed air and microfiber cloth.
1070726
If it is well controlled, yes.  If not, you are at serious risk for a lung injury.\n\nHere is why.  Asthma is an inflammation of the breathing passages.  This reults in anrrowing and can result in air being trapped (at leats for a short period of time).  At constant pressures, no problem.  But when diving the ambient pressure changes.  \n\nIf you filled a ballon half way full at 30 feet depth, when you surfaced the ballon would be fully inflated.  (The reverse is true as well).  The problem is what if the air inside a trapped space doubles in volume - it has to go somewhere.  Barotrauma is the result.  The ability to equalize these pressure is essential to SCUBA diving -- be it the lungs, inner ear or sinus.\n\nOne other wrinkle: SCUBA can trigger asthma.  Some asthma seems to be initiated by breathing in a bit of salt water (unlikely, but it could happen) or by exercise (like kciking against a current).  \n\nMy advice:  Consult with a doctor familiar with diving physiology. and your clinical history.
588962
Actually, the 100mm of Hg is a pressure measured relative to atmospheric pressure; that is, the "total" blood pressure is actually 860 mm of Hg, which is (860 - 760) = 100 mm Hg greater than atmospheric pressure.\n\nMany pressures are given this way, in terms of the pressure difference from one atmosphere.  In that case, 0 mm Hg is simply atmospheric pressure, not a vacuum.