PBL RESPIRATORY SYSTEM ARTERIAL BLOOD GASES DR M NAEEM AFZAL MBBS, MCPS, FCPS, DIP-DIABETES (UK) ASSISTANT PROFESSOR EAST MEDICAL WARD KING EDWARD MEDICAL.

Slides:

Advertisements

Similar presentations

Department of Medicine Manipal College of Medical Sciences

Advertisements

Pulmonary Gas Exchange and Gas Transport

Respiratory Physiologist Dr Bruce Thompson Head, Physiology Service.

Mechanical Ventilaton Ramon Garza III, M.D.. Indications Airway instability Most surgical patients or trauma Primary Respirator Failure Mostly medical.

 Definition refers to excess fluid in the lung, either in the interstitial spaces or in the alveoli.

Dr. Esther Tsang August Case 1 50 year old lady presented with acute onset of shortness of breath this morning. This was preceded by one episode.

Congestive Heart Failure

Lecture 8 Dr. Zahoor Ali Shaikh 1. Alveolar Ventilation increases 20-fold during heavy exercise to keep pace with increased demand of O 2 uptake and CO.

Disorders of the respiratory system 2. Bronchitis is an obstructive respiratory disease that may occur in both acute and chronic forms. Acute bronchitis:

Blood Gases: Pathophysiology and Interpretation

1 Structure and Function of the Pulmonary System Chapter 32.

Copyright © 2009 Wolters Kluwer Health | Lippincott Williams & Wilkins Chapter 23: Anatomy and Physiology of the Respiratory System.

Chapter: 38 Pulmonary Circulation, Pulmonary Edema, Pleural Fluid

Dr. Maha Al-Sedik. Why do we study respiratory emergency?  Respiratory Calls are some of the most Common calls you will see.  Respiratory care is.

Lecture – 5 Dr. Zahoor Ali Shaikh

1 Section II Respiratory Gases Exchange 2 3 I Physical Principles of Gas Exchange.

Pathophysiology of Respiratory Failure Fern White & Annabel Fothergill.

Copyright © 2007, 2004, 2000, Mosby, Inc., an affiliate of Elsevier Inc. All Rights Reserved. Focus on Respiratory Failure (Relates to Chapter 68, “Nursing.

Lecture – 5 Dr. Zahoor Ali Shaikh 1.  Gas Exchange takes place in alveoli and then at tissue level.  Why we are breathing?  To provide a continuous.

Medical Training - Physiology & Pathophysiology - For internal use only.

Question 7 What is the differential diagnosis for the cause of dyspnea in this patient?

Pulmonary edema DaYea Song.

Gas Exchange Partial pressures of gases Composition of lung gases Alveolar ventilation Diffusion Perfusion = blood flow Matching of ventilation to perfusion.

Human Anatomy and Physiology Physiology of air breathing The lungs.

GAS EXCHANGE (Lecture 5). The ultimate aim of breathing is to provide a continuous supply of fresh O2 by the blood and to constantly remove CO2 from the.

Copyright © 2011, 2007 by Mosby, Inc., an affiliate of Elsevier Inc.

GAS DIFFUSION CHAPTER 7 DR. CARLOS ORTIZ BIO-208.

Adult Respiratory Distress Syndrome Kathy Plitnick RN PhD CCRN NUR 351 Critical Care Nursing.

Mechanics of Breathing. Events of Respiration  Pulmonary ventilation – moving air in and out of the lungs  External respiration – gas exchange between.

Learning objectives Understand the Effect of low oxygen pressure on the body. Understand the Effect of high partial pressure of individual gases on the.

EFFECT OF EXERCISE & OTHER FACTORS ON RESPIRATION Lecture 8 Dr. Zahoor Ali Shaikh 1.

Respiratory failure Respiratory failure is a pathological process in which the external respiratory dysfunction leads to an abnormal decrease of arterial.

RESPIRATORY SYSTEM LECTURE-5 (GAS EXCHANGE) Dr. Mohammed Sharique Ahmed Quadri Assistant Prof. physiology Al maarefa college 1.

10 November 2008 Finish Ch 12 Cardiovascular Begin Ch 14 Respiratory Physiology Lab this week: Frog heart physiology – Review actions of ACh, Atropine,

Chapter 39 Oxygenation.

Respiratory Respiratory Failure and ARDS. Normal Respirations.

Copyright © 2011 Delmar, Cengage Learning. ALL RIGHTS RESERVED. Chapter 32 Oxygenation.

CHRONIC PULMONARY EMPHYSEMA Airway obstruction disease Extensive alveolar destruction Trapping of excess air in lungs Obstruction Destruction Etiological.

RESPIRATORY MODULE. FAWAD AHMAD RANDHAWA MBBS ( King Edward Medical College) M.C.P.S; F.C.P.S. ( Medicine) F.C.P.S. ( Endocrinology) Assistant Professor.

Physiology of respiratory failure:

Physical principles of gas diffusion. Physical principles of gas diffusion Henry’s law.

F. Clinical Examination of CVS Dr M Naeem Afzal MBBS, MCPS, FCPS, Dip-Diabetes (UK) Assistant Professor (Internal Medicine) East Medical Ward (Medical.

Cor Pulmonale Dr. Meg-angela Christi Amores. Definition Cor Pulmonale – pulmonary heart disease – dilation and hypertrophy of the right ventricle (RV)

Chapter 22 Chest Injuries. Chapter 22: Chest Injuries 2 Differentiate between a pneumothorax, a hemothorax, a tension pneumothorax, and a sucking chest.

Respiratory Emergencies.5 Dr. Maha Al Sedik 2015 Medical Emergency I.

Respiratory Care Plans Respiratory Failure. Respiratory failure (RF) is present when the lungs are unable to exchange O 2 and CO 2 adequately. RF - PaO.

Case 5- Hypoxia after anesthesia Group A. Case scenario A 37 years of age male who arrives in the post anesthetic care unit following surgical removal.

Elsevier items and derived items © 2008 by Mosby, Inc., an affiliate of Elsevier Inc. Some material was previously published. Structure and Function of.

Respiratory Failure. 2 key processes ■ Ventilation ■ Diffusion.

Complex Respiratory Disorders N464- Fall Ventilator-Associated Pneumonia (VAP) Aspiration of bacteria from oropharynx or gastrointestinal tract.

Science Starter 1.What are the 4 steps of respiration? 2.What is the difference between expiration and inspiration? 3.What is the difference between obstructive.

RESPIRATORY FAILURE DR. Mohamed Seyam PhD. PT. Assistant Professor of Physical Therapy.

Acute Respiratory Failure: 5 types of Hypoxemia

Florida Hospital Resident Presentation

NEONATAL TRANSITION.

Respiratory System Diseases and Management Part IV

Dr. Laila Al-Dokhi Assistant Professor Physiology Department

Dr. Laila Al-Dokhi Assistant Professor Physiology Department

Hyaline Membrane Disease

TOTAL PULMONARY VENTILATION

Acute Respiratory Failure

Polmunary edema.

TOTAL PULMONARY VENTILATION

Focus on Respiratory Failure

Ventilation-perfusion ratio

Respiratory Diseases.

Nathir Obeidat University of Jordan

PBL RESPIRATORY SYSTEM ARTERIAL BLOOD GASES

CONCEPT OF NURSING Promoting Healthy Physiologic Responses Oxygenation

Dr. Laila Al-Dokhi Assistant Professor Physiology Department

Presentation transcript:

PBL RESPIRATORY SYSTEM ARTERIAL BLOOD GASES DR M NAEEM AFZAL MBBS, MCPS, FCPS, DIP-DIABETES (UK) ASSISTANT PROFESSOR EAST MEDICAL WARD KING EDWARD MEDICAL UNIVERSITY/MAYO HOSPITAL, LAHORE

What we are going to learn today Application of ABGs in cardiorespiratory problems Understanding Hypoxia due to AV shunts Understanding Hypoxia due to Pulmonary edema

Pre-test Questionnaire

Why exchange is different for two gases? Physiology of respiratory membranes Pathological changes in respiratory membranes

Factors affecting alteration of gas exchange Blood flow Air flow Respiratory membrane

Case Scenario A middle aged gentleman who is hypertensive, diabetic and smoker presents in ER with rapidly worsening shortness of breath. His examination shows bibasilar crepitations indicative of extra fluid in alveoli of lungs.

Problem What will happen to gas exchange? What will be the pathophysiology behind impaired gas exchange? Can you give more examples of shunt?

What will happen to gas exchange? Decreased Why? Fluid in lungs alveoli will impair the gas exchange

What will happen to gas exchange? Both gases or one gas? Type 1 respiratory failure

What will be the pathophysiology behind impaired gas exchange? Blood will flow but it will not be oxygenated V/Q Ratio?

Can you give more examples of shunt?

2 nd Case scenario An elderly lady who has been operated for hip joint replacement one week ago, suddenly develops sharp excruciating chest pain on right side of chest along with shortness of breath? Examination shows tachycardia, tachypnea, and mild cyanosis. All findings are indicative of pulmonary embolism.

Problems? What will happen to gas exchange? What will be pathophysiological mechanism of impaired gas exchange?

What will happen to gas exchange? Both gases or one gas? Type 1 respiratory failure

What will be pathophysiological mechanism of impaired gas exchange? Air will come but gases will not be exchanged V/Q ratio

Arterial Blood Gases Type 1 respiratory failure Effect on other gas Renal compensation

Post test Questionnaire Application of knowledge 2 different scenarios

Summarization Shunt Dead space Type 1 respiratory failure