In this video we discuss what is homeostasis and why it is important for health. We also cover what is set point, and cover how homeostasis uses it to keep a stable internal environment. What is homeostasis? To be brief and to the point, homeostasis is the relatively constant state maintained by the body. Mainly this means that over time, the internal body will maintain a stable environment. So, for example, if the external temperature is cold or hot, the internal body temperature will remain relatively constant at 98.6f or 37c, the internal body temp may vary a little above or below this number, but that will still be normal. So, lets say we took someones body temperature over a certain time period. If we plot that on a chart it may look something like this. Here, body temperature rose slightly, and here it fell a little. But, the normal body temperature range is from 97.7 to 99.5. So, our subject was inside the normal range throughout the time span. Homeostasis doesnt just apply to body temperature, but many other conditions as well. The human body needs to maintain a certain range of nutrients in the blood stream, such as water, glucose, salt, and other elements as well. We get
[acid-base Homeostasis: Metabolic Acidosis And Metabolic Alkalosis].
Nephrol Ther. 2014 Jul;10(4):246-57. doi: 10.1016/j.nephro.2014.05.004. Epub 2014 Jun 30. [Acid-base homeostasis: metabolic acidosis and metabolic alkalosis]. Centre de nphrologie et de transplantation rnale, hpital de la Conception, 147, boulevard Baille, 13385 Marseille cedex 05, France. Electronic address: [email protected] Acid-base homeostasis ensured by the kidneys, which maintain the equilibrium between proton generation by cellular metabolism and proton excretion in urine. This requirement is lifesaving because of the protons' ability to bind to anionic proteins in the extracellular space, modifying their structure and functions. The kidneys also regenerate bicarbonates. The kidney is not the sole organ in charge of maintaining blood pH in a very narrow range; lungs are also involved since they allow a large amount of volatile acid generated by cellular respiration to be eliminated. Acid-base homeostasis; Acidit titrable; Acidose mtabolique; Alcalose mtabolique; Ammonium; Bicarbonate; Buffers; Ions ammoniums; Metabolic acidosis; Metabolic alkalosis; Proton; Protons; Tampons; Titratable acid; quilibre acide-base
What is ALKALOSIS? What does ALKALOSIS mean? ALKALOSIS meaning - ALKALOSIS pronunciation - ALKALOSIS definition - ALKALOSIS explanation - How to pronounce ALKALOSIS? Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/... license. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6Uu... Alkalosis is the result of a process reducing hydrogen ion concentration of arterial blood plasma (alkalemia). In contrast to acidemia (serum pH 7.35 or lower), alkalemia occurs when the serum pH is higher than normal (7.45 or higher). Alkalosis is usually divided into the categories of respiratory alkalosis and metabolic alkalosis or a combined respiratory/metabolic alkalosis. Respiratory alkalosis is caused by hyperventilation, resulting in a loss of carbon dioxide. Compensatory mechanisms for this would include increased dissociation of the carbonic acid buffering intermediate into hydrogen ions, and the related excretion of bicarbonate, both of which lower blood pH. Hyperventilation-induced alkalosis can be seen in several deadly central nervous system diseases such as strokes or Rett syndrome. Metabolic alkalosis can be caused by rep
Metabolic Alkalosis: Practice Essentials, Pathophysiology, Etiology
Author: Christie P Thomas, MBBS, FRCP, FASN, FAHA; Chief Editor: Vecihi Batuman, MD, FASN more... Metabolic alkalosis is a primary increase in serum bicarbonate (HCO3-) concentration. This occurs as a consequence of a loss of H+ from the body or a gain in HCO3-. In its pure form, it manifests as alkalemia (pH >7.40). As a compensatory mechanism, metabolic alkalosis leads to alveolar hypoventilation with a rise in arterial carbon dioxide tension (PaCO2), which diminishes the change in pH that would otherwise occur. Normally, arterial PaCO2 increases by 0.5-0.7 mm Hg for every 1 mEq/L increase in plasma bicarbonate concentration, a compensatory response that is very quick. If the change in PaCO2 is not within this range, then a mixed acid-base disturbance occurs. For example, if the increase in PaCO2 is more than 0.7 times the increase in bicarbonate, then metabolic alkalosis coexists with primary respiratory acidosis. Likewise, if the increase in PaCO2 is less than the expected change, then a primary respiratory alkalosis is also present. The first clue to metabolic alkalosis is often an elevated bicarbonate concentration that is observed when serum electrolyte measurements are obt
Hello guys In this video discuss about the basic concept of acidosis and alkalosis and Discuss the topic of respiratory acidosis The cause Sign symptom and treatment Please subscribe my channel for more video And comment which video you want discuss in next videos. Thanks
Acidosis And Alkalosis | Harrison's Principles Of Internal Medicine, 19e | Accessmedicine | Mcgraw-hill Medical
Systemic arterial pH is maintained between 7.35 and 7.45 by extracellular and intracellular chemical buffering together with respiratory and renal regulatory mechanisms. The control of arterial CO2 tension (Paco2) by the central nervous system (CNS) and respiratory system and the control of plasma bicarbonate by the kidneys stabilize the arterial pH by excretion or retention of acid or alkali. The metabolic and respiratory components that regulate systemic pH are described by the Henderson-Hasselbalch equation: Under most circumstances, CO2 production and excretion are matched, and the usual steady-state Paco2 is maintained at 40 mmHg. Underexcretion of CO2 produces hypercapnia, and overexcretion causes hypocapnia. Nevertheless, production and excretion are again matched at a new steady-state Paco2. Therefore, the Paco2 is regulated primarily by neural respiratory factors and is not subject to regulation by the rate of CO2 production. Hypercapnia is usually the result of hypoventilation rather than of increased CO2 production. Increases or decreases in Paco2 represent derangements of neural respiratory control or are due to compensatory changes in response to a primary alteration
Arterial Blood Gas (ABG) analysis requires in-depth expertise. If the results are not understood right, or are wrongly interpreted, it can result in wrong diagnosis and end up in an inappropriate management of the patient. ABG analysis is carried out when the patient is dealing with the following conditions: • Breathing problems • Lung diseases (asthma, cystic fibrosis, COPD) • Heart failure • Kidney failure ABG reports help in answering ...
Difference between Metabolic Alkalosis and Respiratory Alkalosis | Acid-Base Regulation The upcoming discussion will update you about the difference between Metabolic Alkalosis and Respiratory Alkalosis. 3. Disproportionate increase in [HCO3 ], [H2CO3], PCO2, pH. 4. Depression of respiratory centre and hyperventilation leading to retention of CO2. 5. In renal mechanism, there is increased NH3 formation and H+ Na+ exchange, increased K+ excretion ...
Your blood needs the right balance of acidic and basic (alkaline) compounds to function properly. This is called the acid-base balance. Your kidneys and lungs work to maintain the acid-base balance. Even slight variations from the normal range can have significant effects on your vital organs. Acid and alkaline levels are measured on a pH scale. An increase in acidity causes pH levels to fall. An increase in alkaline causes pH levels to rise. Whe ...
Paediatric acid-base disorders: A case-based review of procedures and pitfalls J Bryan Carmody , MD and Victoria F Norwood , MD Department of Pediatrics, Division of Pediatric Nephrology, University of Virginia, Charlottesville, Virginia, USA Correspondence: Dr J Bryan Carmody, Department of Pediatrics, Division of Pediatric Neprhology, University of Virginia, PO Box 800386, Charlottesville, Virginia 22903, USA. Telephone 434-924-2096, e-mail ud ...
Module 10: Fluid, Electrolyte, and Acid-Base Balance By the end of this section, you will be able to: Identify the three blood variables considered when making a diagnosis of acidosis or alkalosis Identify the source of compensation for blood pH problems of a respiratory origin Identify the source of compensation for blood pH problems of a metabolic/renal origin Normal arterial blood pH is restricted to a very narrow range of 7.35 to 7.45. A per ...
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