Acute barbiturate poisoning causes depression of the CNS, particularly the respiratory system causing decreased breathing, and the cardiovascular system causing a peripheral circulatory collapse. The frequent and often fatal complications are respiratory (atelectasis, pulmonary edema and bronchopneumonia) or renal (acute renal shutdown). Treatment of acute barbiturate poisoning The severity of barbiturate poisoning is assessed by […]
Nasal Intubation can be accomplished by special nasal tubes or by simple oral tubes. Advantages of nasal intubation over oral intubation: 1. Better fixation and therefore less chances of accidental extubation. 2. No possibility of tube occlusion by biting. 3. Better oral hygiene can be maintained. 4. Oral feeding is possible. 5. Better tolerated by
Charle’s Law: A Fundamental Gas Law What is Charle’s Law? Charle’s Law is a fundamental principle in thermodynamics that describes how gases behave under varying conditions of temperature and volume. Formulated by Jacques Charles in the late 18th century, this law states that the volume of a gas is directly proportional to its absolute temperature,
As with other volatile agents desflurane depresses the respiratory system. Desflurane respiratory effects are quite different. There is a dose-dependent decrease in tidal volume, decreased minute volume and CO2 retention, and an increase in respiratory rate. The ventilatory response to CO2 is reduced. One of the desflurane respiratory effects is that, the desflurane is extremely
IV Anesthesia or intravenous anesthesia is when anesthesia is given through a vein through injections. Anesthesia is usually started or induced with intravenous or IV anesthesia drugs. The different IV Anesthesia drugs are: Thiopental sodium Midazolam Methohexitone Ketamine Etomidate Propofol Some Steroids Ultra short acting barbiturates The ultra-short acting barbiturates administered as IV Anesthesia to
Desflurane cardiovascular effects are mentioned here. There is a decrease in systemic vascular resistance and peripheral vasodilatation. Cardiac depression, a dose-dependent tachycardia and fall in blood pressure are seen. Along with N20 this effect is minimal. Splanchnic and renal blood flow is preserved. Desflurane is a direct coronary vasodilator. A rapid increase in concentration of
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
Halothane Anesthesia is an alkane, halogenated hydrocarbon introduced in 1256. (M Johnston, UK). Physical Properties: Halothane Anesthesia is colorless, sweet smelling, nonirritating, bp 50 degrees C, VP 243 mm Hg, blood/gas 2.5, oil/gas 224, metabolism 20—40%, MAC in 02 ofQ7 /o and 0.29% with N20. It is relat Istable, decopcs on exposure tq.ajr, hence stored
The physiologic changes in pregnancy occur in response to fetal development and eventual delivery. It is incumbent on the intensive care physician to have an understanding of the normal variants that occur in pregnancy to correctly interpret diagnostic tests and effectively treat clinical conditions. Some changes that occur in pregnancy include the following. Endocrine changes
Chloroform anesthesia is prepared from chloroform chemical formula and is a potent, pleasant, non-irritant anaesthetic agent, very popular in the early days of anaesthesia. Physical properties of Chloroform chemical formula are that, it is colourless, sweet odour, non flammable, bp 6 1°C, VP 80mm Hg, blood/gas coefficient 10.3, oil/gas 394, MAC 0.62, metabolism 50% to
