Arterial Blood Gas (ABG) Normal Value Reference Ranges

In this video, we break down the normal ABG values you need to know and explain how to quickly recognize abnormal results in clinical practice. 🟥ABG Interpretation [Full Guide] ➜ ➜ ➜ http://bit.ly/2YYavvh 🟧ABG Interpretation [Book] ➜ ➜ ➜ https://amzn.to/3YAnq38 🟦ABG Interpretation [Free Course] ➜ ➜ ➜ https://bit.ly/3WCgjWZ 🟪ABG Practice Questions [Quiz] ➜ ➜ ➜ https://bit.ly/3NkkDZ4 ABG interpretation begins with understanding the normal reference ranges for the core values: pH, PaCO₂, HCO₃⁻, PaO₂, and SaO₂. These values provide important insight into a patient’s respiratory, metabolic, and oxygenation status. While normal ranges may vary slightly by lab or patient population, typical values include pH 7.35–7.45, PaCO₂ 35–45 mmHg, HCO₃⁻ 22–26 mEq/L, PaO₂ 80–100 mmHg, and SaO₂ 95–100%. The pH shows whether the blood is acidic or alkaline. A pH below 7.35 indicates acidosis, while a pH above 7.45 indicates alkalosis. PaCO₂ reflects the respiratory component of acid-base balance and is regulated by the lungs. An elevated PaCO₂ suggests respiratory acidosis, while a low PaCO₂ suggests respiratory alkalosis. HCO₃⁻ represents the metabolic component and is regulated by the kidneys. A low bicarbonate level suggests metabolic acidosis, while a high level suggests metabolic alkalosis. Oxygenation must also be assessed. PaO₂ measures the amount of oxygen dissolved in arterial blood, while SaO₂ reflects the percentage of hemoglobin saturated with oxygen. Low values may indicate hypoxemia or oxygenation failure, especially when PaO₂ drops below 80 mmHg or SaO₂ falls below 90%. When interpreting ABGs, always start with the pH to determine whether the patient is acidotic or alkalotic. Then compare PaCO₂ and HCO₃⁻ to identify whether the disorder is respiratory, metabolic, compensated, or mixed. It is also important to recognize severe red flags, such as pH below 7.25 or above 7.55, PaCO₂ above 60, HCO₃⁻ below 15, or PaO₂ below 60 on room air. Ultimately, ABG values should never be interpreted in isolation. They must be evaluated alongside the patient’s symptoms, history, oxygen use, and overall clinical condition. 🟥ABG Interpretation [Full Guide] ➜ ➜ ➜ http://bit.ly/2YYavvh 🟧ABG Interpretation [Book] ➜ ➜ ➜ https://amzn.to/3YAnq38 🟦ABG Interpretation [Free Course] ➜ ➜ ➜ https://bit.ly/3WCgjWZ 🟪ABG Practice Questions [Quiz] ➜ ➜ ➜ https://bit.ly/3NkkDZ4 ————— 📘 FREE STUFF ▪ Free Cheat Sheets 👉 https://bit.ly/3IKenWk ▪ TMC Practice Exam 👉 http://bit.ly/2XlwASL 📗 PASS THE BOARD EXAMS ▪ CSE Boost Course 👉 https://bit.ly/3VBwSB2 ▪ TMC Test Bank 👉 https://bit.ly/3QNqwLX ▪ TMC Exam Hacks 👉 https://bit.ly/3iLmVS2 ▪ Daily TMC Practice Questions 👉 https://bit.ly/4cYnOxl ▪ TMC/CSE Bundle (Save $) 👉 https://bit.ly/3VLSyuo 📕 MORE FROM RTZ ▪ Test Bank (Free) 👉 http://bit.ly/2Kp73ln ▪ Glossary 👉 https://bit.ly/3g6s4Pj ▪ About Us 👉 http://bit.ly/2Xgk5YH ▪ Testimonials 👉 http://bit.ly/2x7b5Gl 🌐FOLLOW US ▪ Instagram 👉 http://bit.ly/2FhF0jV ▪ X 👉 http://bit.ly/2ZsS6T1 ▪ Facebook 👉 http://bit.ly/2MSEejt 🚑MEDICAL DISCLAIMER This content is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Please consult with a physician with any questions that you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you watch in this video. We strive for 100% accuracy, but errors may occur, and medications, protocols, and treatment methods may change over time. 💡AFFILIATE DISCLAIMER This description contains affiliate links. If you decide to purchase a product through one of them, we receive a small commission at no cost to you. ————— ⏰TIMESTAMPS 0:00 - Intro 5:00 - Units of Measurement 06:57 - Key ABG Tips 09:18 - Abnormal Values ————— 🖼CREDIT FOR MUSIC AND GRAPHICS: ▪ Music licensed from Audiojungle.net/ ▪ Graphics: Canva.com, Freevector.com, Vecteezy.com, and Pngtree.com #abginterpretation #respiratorytherapy #arterialbloodgas