TY - JOUR T1 - A nomogram for venous shunt (<span class="sc">Qs</span>/<span class="sc">Qt</span>) calculation JF - Thorax JO - Thorax SP - 563 LP - 565 DO - 10.1136/thx.23.5.563 VL - 23 IS - 5 AU - S. T. Chiang Y1 - 1968/09/01 UR - http://thorax.bmj.com/content/23/5/563.abstract N2 - A nomogram for calculating venous shunt has been devised. The details of the derivation of the shunt formula according to which the nomogram is prepared have been reviewed. The simplicity of shunt study using the O2 breathing method and the example for using this nomogram are described. ER -