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[DOC File]ABG Analysis Handout and Questions
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HCO3 + 15 = pCO2 and pH (last 2 digits) Creates a new set point for the pCO2. pCO2 appropriate = normal compensation. pCO2 too low = superimposed primary resp alkalosis. pCO2 too high = superimposed primary resp acidosis. Note: as HCO3 falls below 10 you need to use the formula HCO3 x 1.5 + 8 = expected pCO2.
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[DOCX File]naubaldrige.weebly.com
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, the pCO2 level rises and the excess CO2 reacts with H2O in the bloodstream to produce carbonic acid (H2CO3), which dissociates into H+ ions and HCO3- ions, lowering the pH of the blood. When her airways become infected (which will happen repeatedly over her lifetime), the inflammatory response that follows includes the activation of ...
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[DOC File]Carbondioxide in water equilibrium
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pCO2 = K . xCO2 . where pCO2 is the partial pressure of the gas in the bulk atmosphere (Pa), K is a constant (Pa) and xCO2 is the equilibrium mole fraction of solute in liquid phase. The solubility of CO2 is temperature dependent, as shown in Table 1: Solubility of CO2 at …
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[DOC File]Arterial Blood Gases:
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The renal Tm for HCO3- may be reset by all of the above, and by volume. Non-resorbable anions (e.g., penicillin, carbenicillin) take HCO3- with them. pCO2 secondary to alkalosis causes a TERTIARY renal HCO3- retention (up to 40% of the HCO3- in metabolic alkalosis may be secondary to this).
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[DOC File]Control of Respiration
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• During hyperventilation, carbon dioxide is exhaled, lowering the PCO2. • This drives the chemical reaction to the left, decreasing the hydrogen ion concentration, and increasing pH: CO2 + H2O H2CO3 H+ + HCO3-• Since the PCO2 is low, the central chemoreceptors send fewer impulses to …
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[DOC File]Introduction to the Respiratory System
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An increase in arterial PCO2 . Stimulates chemoreceptors in the medulla oblongata. To restore homeostasis. Hypercapnia and Hypocapnia. Hypoventilation is a common cause of hypercapnia. Abnormally low respiration rate: Allows CO2 buildup in blood. Excessive ventilation, hyperventilation, results in abnormally low PCO2 (hypocapnia)
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[DOC File]RENAL - ACID BASE – ADRENAL PHYSIOLOGY
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Jul 17, 2012 · There is a reduction in arterial PCO2 caused by increased ventilation. the interior of cells become less acidic with increased PCO2. Renal tubular H+ secretion is decreased. HCO3- reabsorption is increased. 86. In metabolic acidosis: The plasma pH is high. The plasma HCO3- is low. The arterial pCO2 remains high. The plasma pH, HCO3- and pCO2 ...
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[DOC File]10-3-07 Potassium & Magnesium Homeostasis
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pH = 7.02, pCO2 = 60, HCO3- = 15, Cl- = 95, Na+ = 140. Mixed Acidosis, since pH < 7.4, high pCO2 and low HCO3- ( both contribute to acidosis. Low HCO3- caused by . lactic acidosis/ketoacidosis/uremia, since AG = 140 – 95 – 15 = 30 (high AG) High CO2 . caused by respiratory distress. Case #4: pCO2 = 30, HCO3- = 30 ( [H+] = 24*30/30 = 24 ...
low ph and low hco3

[DOC File]Practice Problems Acid-Base Imbalances
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You need to know the normal values of pH, partial pressure of carbon dioxide (PCO2), and bicarbonate (HCO3-). You need to look at the patient's ABG's - arterial blood gases - to determine what's abnormal, and whether the abnormal values are too high or too low.
low pco2 and low bicarb

Low pco2 and low hco3