PPT-Arterial blood gases and acid-base balance

Professor Stephen Semple ssempleimperialacuk Daltons Law of Partial Gas Pressures In a gas mixture the pressure exerted by each gas is independent of the pressures of the other gases The Partial pressure of a gas is the concentration of the gas times the Barometric Pressure eg Po. Carrie George, MD. Pediatric Critical Care Medicine. Adapted from Dr. Lara Nelson. Blood Gas Analysis. Acid-base status . Oxygenation. Anatomy of a Blood Gas. pH/pCO. 2. /pO. 2. /HCO. 3. Base: metabolic. Janis Rusin APN, MSN, CPNP-AC. Pediatric Nurse Practitioner. Lurie Children’s Transport Team. Objectives. Discuss the mechanisms for maintaining normal acid-base balance. Define respiratory and metabolic acidosis and alkalosis. MLAB 2401: Clinical Chemistry. Keri Brophy-Martinez. Terms. Acid. Any substance that can yield a hydrogen ion (H. +. ) or hydronium ion when dissolved in water. Release of proton or H. +. Base. Substance that can yield hydroxyl ions (OH. Fluid, Electrolyte, and Acid-Base Balance. 1. Body Water Content. Infants have low body fat, low bone mass, and are 73% or more water. Total water content declines throughout life. Healthy males are about 60% water; healthy females are around 50%. M. . Gardner. Copyright2/4/2013. ACID /BASE BALANCE. In order to meet homeostasis, the body fluids must maintain a stable chemical balance of hydrogen ions in body fluids.. This is done by regulating their acidity /alkalinity. . Learning Objectives. Describe . what is meant by acids, bases and . buffers. List . normal pH of the body fluids. . Describe . the processes involved in maintenance of normal blood pH. .. Describe . various types of acidosis and alkalosis. OR. Regulation of Blood . pH. Dr. Anissa Atif Mirza. Synopsis. Introduction. Sources of Acids and Bases in body. What is Acid Base Balance?. Mechanisms Regulating Blood pH.. Significance of Maintaining Acid Base Balance. For cells to function optimally, . a steady balance . between the acids and the bases . is necessary.. Acid-base balance represents homeostasis of hydrogen (H+) ion . concentration in . body fluids. . Outlines. Introduction . Components of ABG . Oxygenation . Ventilation . and Acid-Base . Status . PaO2, PH, PaCO2, HCO3, buffer system, base excess o . rbase. deficit and compensation. . Signs and Symptoms of . Barbara McLean, . MN, RN, CCNS-BC, NP-BC, CCRN, FCCM. Clinical Specialist Critical Care. Grady Hospital, ATL, GA. www.barbaramclean.com. bamclean@mindspring.com. Grady Hospital, Atlanta GA. Shock . is. Schedule. Intro. Why the pH value of body fluids must be “defended”. Defining pH. Logarithms . (see appendix). Acidosis and alkalosis. Biological Buffers and the Henderson-. Hasselbalch. equation. . hassan. objectives. 1. Describe the physiology involved in the acid/base balance of the body.. 2. Compare the roles of PaO2, pH, PaCO2 and Bicarbonate in maintaining acid/base balance.. 3. Review causes and treatments of Respiratory Acidosis, Respiratory Alkalosis, . Gas Analysis. (Part . I). april. 2018. Clinical Pathology fellowship program. Definitions. Term. Definition. Acid (HA). A substance that can yield a hydrogen\ hydronium ion when dissolved in water (gives off a H. Acid-base balance.  . * Acids are electrolytes that release hydrogen ions (H+) when they are dissolved in water.. * Bases are electrolytes are release hydroxide ions (OH-) when they are dissolved in water..