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Arterial lines are most commonly used in intensive care medicine and anesthesia to monitor blood pressure directly and in real-time (rather than by intermittent and indirect measurement) and to obtain samples for arterial blood gas analysis. Arterial lines are generally not used to administer medication, since many injectable drugs may lead to ...
A resuscitator is a device using positive pressure to inflate the lungs of an unconscious person who is not breathing, in order to keep them oxygenated and alive. [citation needed] There are three basic types: a manual version (also known as a bag valve mask) consisting of a mask and a large hand-squeezed plastic bulb using ambient air, or with supplemental oxygen from a high-pressure tank.
Within minutes, the effective altitude can be decreased by 1000 m to as much as 3000 m (3281 to 9743 feet) depending on the elevation. The bag is pressurised to 14.0–29.3 kPa (105–220 mmHg); the pressure gradient is regulated by pop-off valves set to the target pressure. [1]
The pressure on the bag sets the infusion pressure. The pressure can actually be read-out at the cuff's indicator. The problem is that the flow varies dramatically with the cuff's pressure (or patient's weight), and the needed pressure varies with the administration route, potentially causing risk when attempted by an individual not trained in ...
The pressure on the wound constricts the blood vessels manually, helping to stem blood flow. When applying pressure, the type and direction of the wound may have an effect, for instance, a cut lengthways on the hand would be opened up by closing the hand into a fist, whilst a cut across the hand would be sealed by making a fist.
At high altitude, from 1,500 to 3,500 metres (4,900 to 11,500 ft) there are physiological effects of the reduced oxygen partial pressure which include reduced exercise performance and increased respiratory rate. Arterial oxygen saturation is generally still over 90% in healthy people, but arterial P O 2 is reduced. [2]
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The catheter is connected to a fluid bag and to a monitor, which picks up the arterial pressure over time. As this is a very invasive procedure, it had to be done inside a medical facility, whereas the new technology of blood pressure cuffs allows monitoring of blood pressure from a person's home.
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