Caption: FIGURE 1: Spearman correlation of phase III slope of the nitrogen single-breath washout test
The single breath nitrogen washout test
which includes the closing volume measurement, is performed with a demand valve, or reservoir bag, a pressure differential or other type pneumotachograph, microprocessor or chart recorder, and a nitrogen analyzer.
If the ultrasound was normal but TFTs indicated hypothyroidism, patients underwent a perchlorate washout test
Report accuracy eliminates the need for other time-consuming, labor-intensive steel fiber mix quality control measures, chiefly washout tests
, Bekaert engineers contend.
conducted on the Pro Star Wheel Bearing Grease found a washout rate that's approximately half that of traditional grease--good news considering a boat trailer loses about 8 percent of traditional grease each time it's dunked into the water.