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The perioperative period is the period of a patient's surgical procedure. [1] It commonly includes ward admission, anesthesia, surgery, and recovery.Perioperative may refer to the three phases of surgery: preoperative, intraoperative, and postoperative, though it is a term most often used for the first and third of these only - a term which is often specifically utilized to imply 'around' the ...
Perioperative medicine is the medical care of patients from the time of contemplation of surgery through the operative period to full recovery. Perioperative care may be provided by an anesthesiologist , intensivist , internal medicine generalist or hospitalist working with surgical colleagues.
Perioperative nursing is a nursing specialty that works with patients who are having operative or other invasive procedures. Perioperative nurses work closely with surgeons , anaesthesiologists , nurse anaesthetists , surgical technologists , and nurse practitioners .
Both registered nurses and licensed practical nurses work in some perianesthesia areas. Beyond active registration in good standing, educational and specialized training requirements vary by jurisdiction and practice setting.
Despite newer anaesthetic agents and delivery techniques, which have led to more rapid onset of—and recovery from—anaesthesia (in some cases bypassing some of the stages entirely), the principles remain. Stage 1 Stage 1, also known as induction, is the period between the administration of induction agents and loss of consciousness. During ...
A Wiggers diagram, named after its developer, Carl Wiggers, is a unique diagram that has been used in teaching cardiac physiology for more than a century. [1] [2] In the Wiggers diagram, the X-axis is used to plot time subdivided into the cardiac phases, while the Y-axis typically contains the following on a single grid: Blood pressure. Aortic ...
The phase diagram shows, in pressure–temperature space, the lines of equilibrium or phase boundaries between the three phases of solid, liquid, and gas. The curves on the phase diagram show the points where the free energy (and other derived properties) becomes non-analytic: their derivatives with respect to the coordinates (temperature and ...
Figure 2. Follicular phase diagram of hormones and their origins. Follicle-stimulating hormone (FSH) is secreted by the anterior pituitary gland (Figure 2). FSH secretion begins to rise in the last few days of the previous menstrual cycle, [3] and is the highest and most important during the first week of the follicular phase [4] (Figure 1).