arterial blood gas (abg) sampling is a painful procedure with no perfect technique for quelling the discomfort. an ideal local anesthesia should be rapid, easy to learn, inexpensive, and noninvasive. this study was aimed to compare pain levels from abg sampling performed with vapocoolant spray in comparison to placebo. we hypothesized that pretreatment with the vapocoolant would reduce the pain...

BACKGROUND Cerebral blood flow (CBF) quantitation using technetium-99m hexamethylpropyleneamine oxime (99mTc-HMPAO) generally requires assessment of input function by arterial blood sampling, which would be invasive for small animals. We therefore performed chest dynamic planar imaging, instead of arterial blood sampling, to estimate the input function and establish noninvasive quantitation met...

base deficit is a non-respiratory indicator of acid base status. aim of this study is to assess relationship between the base deficit value in immediate post operative period of cabg and valvular heart disease with cardiopulmonary and in hospital outcome of patient. a total of 136 consecutive with cabg and valvular heart disease scheduled in study. 20 variables were determined during the pre-in...

A meta-analysis determined whether capillary blood gases accurately reflect arterial blood samples. A mixed effects model was used on 29 relevant studies obtained from a PubMed/Medline search. From 664 and 222 paired samples obtained from the earlobe and fingertip, respectively, earlobe compared to fingertip sampling shows that the standard deviation of the difference is about 2.5x less (or the...

Lactate is the end product of the metabolic process of glucose utilization, known as anaerobic glycolysis, which occurs in the cytoplasm of all cells. In well-oxygenated tissues this lactate is metabolized further, but if tissues are inadequately oxygenated, lactate accumulates locally and blood concentration increases. As a blood marker of tissue hypoxia, lactate measurement has long-establish...