DIAG IM3 - Page 23

Information about dead space in breathing circuit A lot of confusion exists in veterinary practices as to the definition of dead space in a  breathing circuit. There are 2 types of dead space: Y Patient Circuit The tubes on the Y circuit do not cause dead space because of the check valves on the absorber. The inhalations of the patient pass through one tube and exhalations through the other. Using tubes with a smaller diameter does not reduce dead space. 1. Anatomical dead XBHYX[X[XYXB[[HۙHX][]ZX[XYXK\\\H]Y[ YX[X[XYXK]\]\B\HZ[[][K[\[[XYXBXYXH[HX][\Z]\BXH\H[[][ۈ[^[][ۂ[YK[HH]Y[X]\[[]قH[YHXKH[[[H[[\Y۝Z[[̊H^[Y\˂Z[]Y[\Z][Y][ۈHXYXHۈ[BX\KY[YXY[\\Y]HZ[XH[H]Y[[HKXX][̋H\\]\HܙX]\[HY[[YH]H]Y[X]\›\\H\H[ḦZ[ ]\[BY\[H]Y[Y[[YH[\\[\[X[HHY][ۘ[XYXK\H\H\ܚ]X[X\\H[H[[XYXB[]\[]Y[\Z]KBBBB˂BBB BHܝ[ۈوH[XX[XBX^[]وHXXBHH[]HX][\Z] BH[ۈHX][\Z][HۛX܈\Y]Y[H[XH[HX][\Z] Kˈ̂Y\ܜ\XH[\HY\ܜ]ˊBHHYXH]H[وHH\Z]H[]\[\Z]\Z[Y[[\]HۈH]\[\HX\] ]\›ܚY[[H\YۙY\H[H]Y[\B\Z][[X[[Y\\XK]Y[Y\˜\H]\X]Xݙ\H[]\[ZYYX][ۈوH\˰]\Y[YH\]][HX\[HۛXYHܛۙœܝ\YܙH[[و]Y[Y\˂ۈYH[[H[[][ۈXH\]XYHۛX܋X[]\B[ܙX\YXYXK^X[]Y[\Z]H^X[XH\YۈKXX][˜\Z] Hۙ\Y]Z[X\B\[Z[\H[]\[]]]B\Y[Y\ˈ]\[[[][ۈXB]XY[[HۛXYX\ˈ]\\YۙY\[[\ݙ[Y[H[]\[˚ܝ]\KB