reabsorb or excrete HCO3 YOU MUST KNOW WHAT IS NORMAL TO BE ABLE TO KNOW WHAT IS ABNORMAL * pH = 7.35 to 7.45 * PaCO2 = 35 to 45 mm Hg * PaO2 = 80 to 100 mm Hg * HCO3 = 22 – 26 mEq/l What you MUST LOOK AT TO INTERPRET ABGS LOOK AT YOUR pH *Is it normal? * is it high? *is it low? EXAMPLES *pH = 7.36 *pH = 7.23 * pH = 7.47 *a high pH indicates alkalosis *a low pH indicates acidosis LOOK AT YOUR PaCO2 *is it normal? *Is it high? *is it low? *This is the respiratory
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seconds‚ pH = 7.40 2. At 40 seconds‚ pH = 7.40 3. At 60 seconds‚ pH = 7.40 4. Did the pH level of the blood change at all during normal breathing? If so‚ how? No 5. Was the pH level always within the “normal” range for the human body? Yes 6. Did the PCO2 level change during the course of normal breathing? If so‚ how? No Activity 2a: Hyperventilation – Run 1 1. At 20 seconds‚ pH = 7.46 2. At 40 seconds‚ pH = 7.55 3. At 60 seconds‚ pH = 7.68
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reached‚ the PH changes very quickly. With the results‚ a titration curve should be produced. Experimental Section Materials and Methods: A buret with NaOH solution was used to ensure an accurate measure of NaOH could be taken. A PH recording machine was used to measure the PH. To make sure 25.0 ml of the unknown was measured‚ we used a 25.0 ml pipet. The buret was primed and filled with NaOH. The measured 25.0 ml of the unknown solution was placed into a beaker and the PH was measured.
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NO | ANSWER | MARK | 1 :( i )( ii ) ( iii ) ( iv )2 :( i )( ii )( iii )3 )4 )5 ) ( i )( ii )( iii )( iv )6 )7 ) i )ii ) iii )8 )9 )10 )i ) ii )iii)11 ) | A reagent is highly serves as a reference material in all volumetric & mass titrimetric method.A reagent solution of accurately known concentration. * End point-point at which the reaction is observed to be complete and there is permenant colour change at the end of titration. * Equivalent point-point at which an equivalent amount of
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The pH scale measures how acidic or basic a substance is. The pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic. So basically a neutral water should have a pH of 7‚ but usually we see that they might be 6.8 or 7.5. That is still drinking water. Usually water with pH of 7 is much expensive than the average one which is usually from 6.8 to 7.5 . Some common acid and bases with their pH scale : Common Acids | pH | Common Bases | pH |
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acidity which is below 5.5 ph level in our mouth which is produced by those sweet foods. The graph shows us the relationship between the ph level of acidity and the time elapsed after eating sweet foods. At this graph‚ there are 3 tested sweet foods: fruit sugar‚ cane sugar and honey. These sweet foods could cause different acid levels in mouth when they are consumed. In the first 5 minutes when somebody consumes honey‚ the acidity level will increase approximately 2 levels of ph‚ while when the other
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least‚ we have to know about acid-base balance. pH‚ acid and bases‚ and buffer system. Acid is substance that dissociates into hydrogen ions (H+). Base is a substance that dissociates into hydroxyl ions (H-). Buffer is a solutions containing substance that have the ability to minimize change in the pH when an acid or base was added into it. Acid and base balance in human body is essential for all living things. When there are slightly change of pH‚ it will affect the enzymes activity in the body
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imbalence in patients with serious illnesses. pH and hydrogen ion concentration The acidity and alkalinity of a solution depends on its hydrogen ion (H+) Concentration. An increase in H+ concentration leads to acidity ‚a decreased leads to alkalinity . acids are produced by the body daily.H+ concentration of body fluid is small(0.0004meq/l).H+ ion concentration is usually expressed as a negative logarithm(symbolized as pH) rather than in milliequivalents. The use of the
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Biology 181 Ana Marti-Subirana Identification of unknown a-Amylase through testing different temperatures and pH values to detect the absorbance of maltose. Introduction: Enzymes are biological catalysts‚ mainly proteins for this experiment‚ generated by an organism to speed up chemical reactions. They have active sites on which the substrate is attached‚ and then broken up or joined. For this experiment we are going to work with the enzyme a-amylase. Amylase is an enzyme that breaks
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Tutorial 1 1. pK = 3.4 DH = ASA Plasma pH = 7.3 Stomach pH = 1.5 = 10pH – pK = 10pH – pK = 107.3 – 3.4 = 101.5 – 3.4 = 7943.2823 = 0.01259 [Total Drug] = [D-] + [DH] [Total Drug] = [D-] + [DH] = 7943.2823 + 1 = 0.0126 + 1 = 7944.2823 = 1.0126 [Total Drug] in stomach relative to plasma = 7944.2823/1.0126 = 7845.43 Conclusion: High absorption of ASA from the stomach lumen. Absorption from stomach is 7845.43 times
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