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In anaesthesia and advanced airway management, rapid sequence induction (RSI) – also referred to as rapid sequence intubation or as rapid sequence induction and intubation (RSII) or as crash induction [1] – is a special process for endotracheal intubation that is used where the patient is at a high risk of pulmonary aspiration.
Industrial pressure switches may have a calibrated scale and pointer to show the set point of the switch. A pressure switch will have a hysteresis, that is, a differential range around its setpoint, known as the switch's deadband, inside which small changes of pressure do not influence the state of the contacts. Some types allow adjustment of ...
In many countries, cricoid pressure has been widely used during rapid sequence induction for nearly fifty years, despite a lack of compelling evidence to support this practice. [7] The initial article by Sellick was based on a small sample size at a time when high tidal volumes, head-down positioning and barbiturate anesthesia were the rule. [8]
It is used for conscious sedation [7] [8] and as a part of a rapid sequence induction to induce anaesthesia. [9] [10] It is used as an anaesthetic agent since it has a rapid onset of action and a safe cardiovascular risk profile, and therefore is less likely to cause a significant drop in blood pressure than other induction agents.
Rapid sequence intubation is incorrect (and is erroneously used in some manuals and courses), as it is the induction of anaesthesia that is rapid sequence, not the intubation, which is secondary to the procedure, and performed at normal speed, and used to maintain a patent airway after RSI is complete.
Figure 1D illustrates a double-pole, double throw (DPDT) switch. Contact form, or simply form, is the term relay manufacturers use to describe a relay's contact configuration. "Form A” refers to a single-pole, normally open switch. "Form B" indicates a single-pole, normally closed switch, and "Form C" indicates a single-pole, double-throw switch.
Pages for logged out editors learn more. Contributions; Talk; Rapid sequence intubation
Switches can be designed to respond to any type of mechanical stimulus: for example, vibration (the trembler switch), tilt, air pressure, fluid level (a float switch), the turning of a key , linear or rotary movement (a limit switch or microswitch), or presence of a magnetic field (the reed switch). Many switches are operated automatically by ...