title: Bedside determination of bicarbonate and base excess, blood oxygen saturation and content, VD/VT, and P50 using a programmable calculator.
abstract: Assessing and modifying oxygen transport are major parts of ICU patient management. Determination of base excess, blood oxygen saturation and content, dead space ventilation, and P50 helps in this management. A program is described for determining these variables using a T1 59 programmable calculator and PC 100A printer. Each variable can be independently calculated without running the whole program. The calculator-printer's small size, low cost, and hard copy printout make it a valuable and versatile tool for calculating physiological variables. The program is easily entered by an stored on magnetic card, and prompts the user to enter the appropriate variables, making is easy to run by untrained personnel.
mesh_terms: D000136:Acid-Base Equilibrium; D001639:Bicarbonates / Q000097:blood*; D001701:Bionics; D002245:Carbon Dioxide / Q000097:blood; D002302:Cardiac Output; D006801:Humans; D007362:Intensive Care Units; D010100:Oxygen / Q000097:blood; D010108:Oxyhemoglobins / Q000032:analysis*; D012126:Respiratory Dead Space; D014692:Ventilation-Perfusion Ratio
chemical_list: D001639:Bicarbonates; D010108:Oxyhemoglobins; D002245:Carbon Dioxide; D010100:Oxygen