Other researchers have developed the technique of deriving oximetry readings of arterial blood through the trachea, or right and left ventricular oximetry through the esophagus [ 5, 8].
The pulmonary artery lies close to the bronchus, with nothing but some connective tissues between them, raising the possibility that an appropriately located and directed bronchial oximetry probe might be able to derive oximetry readings from mixed venous blood.
The pulmonary artery lies in close proximity to the bronchus, with nothing but some connective tissues in the interval, raising the possibility that an appropriately located and directed bronchial oximetry probe might be able to derive oximetry readings from the mixed venous system.
An appropriately located and directed bronchial oximetry probe is able to derive oximetry readings from the pulmonary artery, because the artery lies in close proximity to the bronchus with only some connective tissues in between, thus providing a microinvasive tool for the assessment of mixed venous oxygen saturation (SvO2).
The more accurate pH measurements derived from spectrophotometric readings (described below) were used to correct for any drift in the pH control system between calibrations.
[ 38] The specific sub-theme categories were derived from multiple readings of the raw data until saturation occurred, then the marked text segments were copied into the emergent categories.
They were conducted by two researchers, one delivering questions via a semistructured topic guide focusing on a range of issues derived from prior readings that were relevant to the aims of the study, while the other observed interaction, took notes and ensured the proper functioning of recording equipment.
The dietary reports were produced in Spanish or English, depending on the language in which the survey was conducted, and provided summarized feedback on participants' dietary intakes based on their responses to the food consumption questionnaire, as well as data on height, weight, and systolic and diastolic blood pressure readings derived from the survey.
They are also seen for silent articulation (mouthing), where the expected phonetic transcription is derived from lip-reading, and with periods to indicate silent pauses, for example.
Regression equations generated from a calibration study were used to derive predicted Omron readings from Dinamap readings.
