ary polyeythemia is diagnosed when the patient has polycythemia associated with cyanotic heart disease or lung disease in the absence of leukoeytosis, high platelet count, and splenic enlargement. The differentiation of polycythemia vera from secondary polycythemia is sometimes a difficult task. Ratto, Briscoe, Morton, and Comroel have discussed the theoretical reasons that make this distinctio...

A new approach to the spectrophotometric determination of blood oxygen saturation has been made which is based on the absorption maximum of oxyhemoglobin and the isosbestic point of oxyhemoglobin and hemoglobin. The precision of this new method is comparable to that of the manometric procedure in which the Van Slyke-Neil1 apparatus is employed; there is also good correlation between results obt...

We have examined the filterability of sickle erythrocytes, using an initial-flow-rate method, to determine whether sufficient hemoglobin S polymer forms at arterial oxygen saturation to adversely affect erythrocyte deformability. The amount of intracellular polymer was calculated as a function of oxygen saturation to estimate the polymerization tendency for each of eight patients with sickle ce...

background: to study the effect of oral garlic on arterial oxygen pressure in children with hepatopulmonary syndrome. materials and methods: garlic powder in a capsule form was given to 15 children with hepatopulmonary syndrome (confirmed by contrast echocardiography) at the dosage of 1 g/1.73 m2 per day. patients were evaluated clinically and by arterial blood gas every four weeks. results: th...

abstract background: after coronary artery bypass surgery, pulmonary complications and oxygenation disorders are common, which have an important role in mortality and morbidity. different methods are used for the improvement of pulmonary function and oxygenation, of which incentive spirometry (is) has been investigated here. the aim of this study is to evaluate the effects of is on arterial blo...

Arterial Oxygen Saturation as a Predictor of Acute Mountain Sickness and Summit Success among Mountaineers

Continuous noninvasive monitoring of oxygenation in premature neonates with respiratory distress is essential to avoid the potential complications of hypoxemia and hyperoxia. The accuracy and reliability of pulse oximetry (using an Ohmeda Biox) was evaluated in 15 premature neonates. Pulse oximetry oxygen saturation readings closely approximated arterial oxygen saturation values analyzed by an ...

She was diagnosed as having bronchitis and was given intravenous cefuroxime and gentaAbstract micin with improvement. However, on the Patients with acute leukaemia may have second day she complained of an irritating dry spuriously low arterial oxygen tensions cough and dyspnoea. Physical examination of (PaO2). The markedly increased numbers the respiratory and cardiovascular systems reof white ...

We read with great interest the study by Hernandez and colleagues published in Critical Care [1]. The study showed that central venous oxygen saturation (ScvO2) increased significantly in response to emergency intubation, and the authors suggested that the early normalization of ScvO2 after intubation might not be reliable to reflect successful resuscitation. However, they might have ignored th...