Excess Oxygen can cause pulmonary oxygen toxicity which results in a lot of damage to the body tissues. To summarize briefly, the excess oxygen can cause, pulmonary toxicity, Acute respiratory distress syndrome, rertolental fibroplasia, convulsions and Paul burt effect. Here we will be dicussing the mechanisms of these tissue injuries that occur with use of excess oxygen. The following the changes […]
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
Capnography is the continuous measurement of end tidal carbon dioxide (ETCO2) and its waveform. The normal recording from a Capnography is between 32 to 42 mmHg (3 to 4 mmHg less than arterial pCO2 which is 35 to 45 mmHg). Capnography works on the principle that infrared light is absorbed by carbon dioxide. And this
A lot of Doctors and famous anesthesiologists have contributed to the evolution of the science of anesthesia. Their hard work and discoveries have made anesthesia a safe and crucial field in pain management and as a medical specialty. The discovery of Nitrous oxide was a major breakthrough, that was later found out to be a
Many common critical care drugs are among the safe drugs during pregnancy, whereas some should be used with caution and others avoided entirely. When treating pregnant patients, it is the physician’s responsibility to treat the mother as the primary patient. Fetal considerations are secondary to ensuring maternal well-being because maternal demise will generally result in
Posterior fossa is a tight infratentorial compartment which harbors vital centers like cerebellum, pons and medulla. Anesthesia for Posterior Fossa Surgery is employed in carious types of space-occupying lesions, i.e., cerebellar tumours, cerebellopontine angle lesions, medulloblastoma, brainstem glioma occur in this area. The patients with posterior fossa tumor presents with features of raised intracranial pressure, brain
Boyle’s law is an important gas law that states that at a constant temperature, the volume of gas is inversely proportional to the pressure of the gas. This means that when the temperature of a gas is kept constant, the relationship between Volume and pressure of a gas is inverse. Another way to put tis law
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
Halothane cardiovascular effect plays a critical role. The main haemodynamic effect is a reduction in blood pressure secondary to a fall in cardiac output, reduced cardiac contractility and stroke volume, due to alterations in Ca-metabolism and a reduction in intracellular calcium. So, the coronary blood flow is reduced. The heart rate often falls due to
Acoustic Surgery can be accomplished with suboccipital, translabyrinthine and middle fossa approaches. The sitting, supine, lateral or park-bench position can be used for the suboccipital approach. Small or medium sized tumours are associated with essentially no mortality, whereas large tumors (>4 cm) have mortality rates of 2-4%. Compromise of the anterior inferior cerebellar artery and
