Nomograms for correction of blood Po2, Pco2, pH, and base excess for time and temperature.

Measured pulmonary oxygen consumption: difference between systemic oxygen uptake measured by the reverse Fick method and indirect calorimetry in cardiac surgery

“…When sampling blood for _ V O 2 Fick measurements, care must be taken to avoid bubbles, and to store the samples at a low temperature if any delay in processing occurs, in order to avoid metabolic consumption of O 2 within the sample [10]. We were able to avoid this problem with immediate point of contact blood gas analysis.…”

“…Consequently the interpretation of these findings is difficult, especially given the potential for measurement error with either indirect calorimetry or the reverse Fick method. Both of these techniques require the evaluation of variables, such as total gas flow and blood O 2 content, which may be difficult to measure reliably in all clinical environments, or may be affected by unanticipated physiological sources of error, such as delays in processing blood gas samples [10], or N 2 excretion by the lungs during surgery [11].…”

Using Tailored Tranquilizer Combinations to Reduce Stress Associated With Large Ungulate Capture and Translocation

“…Anaerobic blood samples were collected in self-filling arterial syringes (Pro-Vent, Smiths Medical, Keen, New Hampshire, USA) from the auricular artery and immediately processed with an Element POC rapid blood analyzer (Heska, Loveland, Colorado, USA) to measure blood gases, acid-base status, and selected hematologic variables. Partial pressure of arterial oxygen (PaO 2 ), partial pressure of arterial carbon dioxide (PaCO 2 ), and pH were corrected to the rectal temperature (Kelman and Nunn 1966). Blood samples were collected at two time points: the first within 25 min after recumbency, denoted as sampling period 1 (S1), and the second within 26-60 min after recumbency (S2).…”

Respiratory alkalosis and associated electrolytes in long-term ventilator dependent persons with tetraplegia

“…Two and a half millilitres of blood were collected in a syringe with only enough heparin to ®ll the dead space, 14 and blood for the remaining biochemical analysis was collected separately into Vacutainer bottles. The samples of the hospital-based patients could be analyzed immediately whilst those from home visits were plunged into ice, which slows down the rate of change of gas tensions by 90%, 15 and then transported within 45 min to the local hospital laboratory for subsequent arterial blood gas and electrolyte analysis. The laboratories analyzed total magnesium and total calcium corrected for albumin content.…”