Respiratory Therapy Zone/Formulas and Calculations (Premium Course)
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Formulas and Calculations (Premium Course)

  • Course
  • 73 Lessons

Take this course to master respiratory care-related formulas and calculations with clear explanations and helpful practice problems.
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What's Inside the Course?

This course provides everything you need to confidently master respiratory therapy calculations. You’ll learn essential formulas like minute ventilation, alveolar air equations, and oxygen delivery through clear, step-by-step breakdowns.

Our quick-reference guides and detailed problem-solving examples make complex math approachable, while practice questions reinforce your skills. More than just numbers, this course connects calculations to real-world clinical scenarios, ensuring you understand their impact on patient care.

Whether you're preparing for exams or sharpening your clinical expertise, this course equips you with the tools to calculate with confidence.

Introduction

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List of Formulas

Calculation Breakdowns

Minute Ventilation (VE)
Alveolar Minute Ventilation (VA)
Airway Resistance (Raw)
Mean Airway Pressure (Paw)
Work of Breathing (WOB)
Alveolar-Arterial Oxygen Tension Gradient (P(A-a)O₂)
Alveolar Oxygen Tension (PAO₂)
Arterial/Alveolar Oxygen Tension Ratio (a/A Ratio)
Arterial Oxygen Content (CaO₂)
End-Capillary Oxygen Content (CcO₂)
Mixed Venous Oxygen Content (CvO₂)
Shunt Equation (Q̇S/Q̇T)
Modified Shunt Equation (Q̇S/Q̇T)
Arterial-Mixed Venous Oxygen Content Difference (C(a-v)O₂)
Oxygen-to-Air Entrainment Ratio (O₂:Air)
Arterial Oxygen Saturation Estimation (SaO₂)
PaO₂/FiO₂ Ratio (P/F Ratio)
Oxygenation Index (OI)
Oxygen Consumption (VO₂)
Oxygen Extraction Ratio (O₂ER)
FiO₂ Estimation for Nasal Cannula
Oxygen Cylinder Duration
Liquid Oxygen System Duration
Cardiac Index (CI)
Cardiac Output (QT)
Cardiac Output (CO) Using Fick’s Method
Cerebral Perfusion Pressure (CPP)
Mean Arterial Pressure (MAP)
Stroke Volume (SV)
Maximum Heart Rate (HRmax)
Heart Rate on an EKG Strip (HR)
Respiratory Quotient (RQ)
Systemic Vascular Resistance (SVR)
Pulmonary Vascular Resistance (PVR)
Static Compliance (Cst)
Dynamic Compliance (Cdyn)
Deadspace to Tidal Volume Ratio (VD/VT)
Children Dosage Estimation
Infant Dosage Estimation
Infant and Children Dosage Estimation (Fried’s Rule)
Anion Gap
Body Surface Area (BSA)
Elastance
Smoking Use Calculation (Pack Years)
Suction Catheter Size Estimation
Endotracheal Tube Size Estimation in Children
Celsius to Fahrenheit Temperature Conversion
Fahrenheit to Celsius Temperature Conversion
Celsius to Kelvin Temperature Conversion
Helium/Oxygen Conversion (He/O₂)
Boyle’s Law
Charles’s Law
Gay-Lussac’s Law
LaPlace’s Law
Total Lung Capacity (TLC)
Vital Capacity (VC)
Inspiratory Capacity (IC)
Functional Residual Capacity (FRC)
Time Constant (t)
Ideal Body Weight (IBW)
Tidal Volume (VT)
Exhaled Tidal Volume (VT)
Corrected Tidal Volume (VT)
Pressure Support Ventilator Setting (PSV)
Rapid Shallow Breathing Index (RSBI)
Minimum Flow Rate in Mechanical Ventilation
TMC Exam Tips on Formulas and Calculations

Quiz

Quiz (25 Questions)
Practice Questions (Correct Answers).pdf
Use Practice Questions to Master Formulas/Calculations

Other Resources

Paperback Book