Chapter 114: Formulas Natalie Kostelecky; Stephen M. Pastores View Full Chapter Figures Only Tables Only Videos Only Print Share Email Twitter Facebook Linkedin Reddit Get Citation Citation AMA Citation Kostelecky N, Pastores SM. Kostelecky N, Pastores S.M. Kostelecky, Natalie, and Stephen M. Pastores.Formulas. In: Oropello JM, Pastores SM, Kvetan V. Oropello J.M., Pastores S.M., Kvetan V Eds. John M. Oropello, et al.eds. Critical Care New York, NY: McGraw-Hill; . http://accessanesthesiology.mhmedical.com/content.aspx?bookid=1944§ionid=143523327. Accessed June 20, 2018. MLA Citation Kostelecky N, Pastores SM. Kostelecky N, Pastores S.M. Kostelecky, Natalie, and Stephen M. Pastores.. "Formulas." Critical Care Oropello JM, Pastores SM, Kvetan V. Oropello J.M., Pastores S.M., Kvetan V Eds. John M. Oropello, et al. New York, NY: McGraw-Hill, , http://accessanesthesiology.mhmedical.com/content.aspx?bookid=1944§ionid=143523327. Download citation file: RIS (Zotero) EndNote BibTex Medlars ProCite RefWorks Reference Manager Mendeley © Copyright Tools Search Book Top Return Clip Autosuggest Results ++ Table Graphic Jump LocationFavorite Table | Download (.pdf) | Print A. Cardiovascular/Hemodynamics Equation Normal Ranges Systemic systolic blood pressure (SBP) 100-140 mm Hg Systemic diastolic blood pressure (DBP) 60-90 mm Hg Pulse pressure (PP) SBP – DBP 30-50 mm Hg Mean arterial pressure (MAP) SBP + (2 × DBP)/3 70-110 mm Hg Mean pulmonary arterial pressure [PASP + (2 × DBP)]/3 10-20 mm Hg Central venous pressure (CVP) 2-6 mm Hg Pulmonary artery occlusion pressure (PAOP) 4-10 mm Hg Systemic vascular resistance (SVR) MAP – RAP/CO × 80 800-1200 dynes s/cm5 Pulmonary vascular resistance (PVR) MPAP – PAWP/CO × 80 <250 dynes s/cm5 Cardiac output (CO) SV × HR/1000 4.0-8.0 L/min Cardiac index (CI) CO/BSA 2.5-4.0 L/min/m2 Stroke volume (SV) CO/HR × 1000 60-100 mL/beat Stroke index (SI) CI/HR × 1000 33-47 mL/m2/beat Left ventricular stroke work index SVI × (MAP – PAWP) × 0.0136 50-62 g m/m2/beat Right ventricular stroke work index SVI × (MPAP – RAP) × 0.0136 5-10 g m/m2/beat Oxygen delivery (DO2) CO × CaO2 × 10 950-1150 mL/min Oxygen consumption (VO2) CO × (CaO2 – CvO2) × 10 200-250 mL/min Arterial oxygen content (CaO2) 1.39 × SaO2 × (Hgb) + 0.0031 × PaO2 17-20 mL/dL Venous oxygen content (CvO2) 1.39 × SvO2 × (Hgb) + 0.0031 × PaO2 12-15 mL/dL Arterio-venous oxygen content difference (AVO2) CaO2 – CvO2 4-6 mL/dL Oxygen extraction ratio (O2ER) CaO2 – CvO2/CaO2 × 100 22%-30% Coronary artery perfusion DBP – PAWP 60-80 mm Hg ++ Table Graphic Jump LocationFavorite Table | Download (.pdf) | Print B. Respiratory Equation Normal Ranges Arterial oxygen tension (PaO2) 80-100 mm Hg Arterial oxygen saturation (SaO2) 95%-100% Arterial carbon dioxide tension (PaCO2) 35-45 mm Hg Alveolar gas equation (PAo2) Alveolar-arterial oxygen difference (A-a gradient) PAo2 – PaO2 5-25 mm Hg (at FIo2 = 0.21) <150 mm Hg (at FIo2 = 1.0) Minute ventilation Respiratory rate × tidal volume 5-6 L/min Dead space fraction (VD/VT) Paco2 – Peco2/Paco2 0.2-0.3 Respiratory system static compliance (Cst) VT/Pplat – PEEP 60 mL/cm H2O Respiratory system dynamic compliance (Cdyn) VT/PIP – PEEP 60 mL/cm H2O Pulmonary capillary oxygen content (CCo2) (Hgb × 1.39 × 1.0) + (0.0031 × PAo2) 20.7 ml O2/dL Shunt fraction (QS/QT) (Cco2 – Cao2)/(Cco2 – Cvo2) <5% Oxygen delivery (Do2) Cao2 × CO × 10 950-1150 mL/min Oxygen consumption (Vo2)... GET ACCESS TO THIS RESOURCE Sign In Username or Email Please enter User Name Password Please enter Password Forgot Username? Forgot Password? Sign in via OpenAthens Sign in via Shibboleth Get Free Access Through Your Institution Contact your institution's library to ask if they subscribe to McGraw-Hill Medical Products. What is MyAccess? Create a FREE MyAccess profile to: Use this site remotely Bookmark your favorite content Track your self-assessment progress and more! GET ACCESS TO THIS RESOURCE Subscription Options Pay Per View Timed Access to all of AccessAnesthesiology 24 Hour $34.95 (USD) Buy Now 48 Hour $54.95 (USD) Buy Now Best Value AccessAnesthesiology Full Site: One-Year Individual Subscription $995 USD Buy Now View All Subscription Options Pop-up div Successfully Displayed This div only appears when the trigger link is hovered over. Otherwise it is hidden from view. Please Wait