An important part of rapid sequence induction is Cricoid pressure was first described by Sellick in 1961, hence it is called as sellicks manoeuvre. The Cricoid pressure is used for the compession of the upper esophagus to close the aspiration of gastric contents during rapid sequence intubation. Pulmonary aspiration of gastric contents occurs usually in […]
The purpose of preoxygenation of a patient before induction of general anesthesia and paralysis is to provide a maximum time that the patient can tolerate apnea. Normal oxygen consumption in a healthy adult is about 250 ml / min desaturations oxygen can occur as quickly as 30-60 seconds in a healthy adult with the FRC
These are classified as high flow Oxygen Delivery Devices and low flow Oxygen Delivery Devices. Classification of Oxygen Delivery Devices in non intubated patient : 1. High flow (fixed performance) delivery systems. 2. Low flow (variable performance) delivery systems. As the high flow oxygen delivery devices have already been discussed, let us see what the low
High Flow oxygen delivery devices are also called as fixed performance devices because their performance is not affected by changes in patient’s tidal volume and respiratory rate and therefore deliver accurate oxygen concentration. High Flow oxygen devices are more effective in treating hypoxemia then low flow systems. Disadvantages of High Flow oxygen devices are: a. Low patient
The Non Rebreather Masks are the masks that do not allow rebreathing of the gases to take place when a patient is ventilated or he takes spontaneous breaths while the mask is being held. These masks of Non Rebreather type need to have a very high flow of oxygen as most of the oxygen is being lost.
The diaphragm function is the most important determinant of the depth of respiration especially the inspiration. The Diaphragm is the muscle that separates the thorax from the abdomen. It is a thin sheet like muscle that has the right and the left crura. The diaphragm act as a partition between the two major cavities of the
The answer to the question what is Pulmonary Function Test should be known to every doctor. The Pulmonary function tests especially the bedside ones can be used by even a non medico to asses the function of the lung. 1. Simple Bed Side Test Now what is Pulmonary Function Test that can be used at
Flow Volume Loops are more sensitive and informative in detecting pulmonary diseases than conventional spirometry. Modem microprocessor controlled recording spirometers automatically generate these flow volume loops. The following are the parameters that are assessed in the Flow volume loops. TV= Tidal volume IRV = Inspiratory reserve volume IC = Inspiratory capacity ERV = Expiratory reserve
General Anesthesia mask is used to ventilate the patient without intubation or before intubation. The mask significantly increases amount of dead space. These are available in sizes from 0 to 4 numbers. Face mask should be made of antistatic rubber. At the bottom of General Anesthesia mask there is air filled cuff which has soft cushioning effect.
The reservoir bag is also called as the Breathing bag. The bag is attached to anesthesia breathing circuits to ventilate the patient. The bag acts as a reservoir for anesthetic gases as well as for oxygen, which when pressed results in the delivery of the gases or oxygen to the patient. An anesthetized and paralyzed
