Anesthetic gases decrease the patient's heart rate depending on the concentration of the agent being used,and each of the anesthetic gases cause vasodilation which decreases the patient's blood pressure.Interventions that perioperative nurses can provide to help ensure a safe anesthetic experience include:

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Cardiac output and blood pressure are affected by positioning,adding another important consideration.When the surgical team positions a patient in a supine or lateral position,there is minimal effect on hemodynamics,but when a patient is positioned in a flexed lateral,sitting,or prone position,cardiac output and blood pressure are often decreased.When placing a patient in a lithotomy or Trendelenburg position,the patient's blood pressure can increase.When placing a patient in these surgical positions,the perioperative team should position the patient slowly to allow the body to compensate for position-induced hemodynamic changes.Areas related to respiration should be positioned without pressure or restriction.

Anesthetic Gases Decrease the Patient's Heart Rate Depending on the Concentration