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28 Cards in this Set
- Front
- Back
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What are the 2 most important, but weak Acid-Base regulators in the body?
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H2CO3 and HCO3-
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What is the normal pH of Arterial Blood?
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7.4.
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What is the normal pH value of Venous and Interstitial Fluids in the body?
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7.35
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The Lower Limit of pH Compatible With Life is _______ and the Upper One is ______.
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6.8, 8.0
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How will Hypoxia and Poor Blood Flow (Intracellular) affect your pH?
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Decrease pH
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What plays a KEY role in the regulation of H+? What are the other mechanisms that play a role in the regulation of H+?
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Kidney (KEY role)
Lungs, Blood, and Cells |
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A molecule that contains Hydrogen atoms that can be RELEASED as H+ in solution is referred to as?
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Acid
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What are the 2 most important bases in the body?
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Hgb (in RBC's) and Protein
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The pH of Urine ranges from ______ to _______.
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4.5-8.0
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Which 3 systems will act against changes in [H+]?
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1) Buffer
2) Lungs 3) Kidneys |
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What is the pH produced by the Gastric Cells?
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0.8
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What are the pathologies, which lead to
Respiratory Alkalosis |
Increased Ventilation & Decreased PCO2
Hyperventilation *Compensation by body fluids buffer and kidneys |
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What are the pathologies, which lead to
Metabolic Acidosis |
Not caused by Respiratory conditions
Renal Failure (can't reabsorb HCO3) DKA Lactic Acidosis Ingestion or Infusion of Acids Diarrhea |
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What are the pathologies, which lead to Metabolic Alkalosis
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*Increased HCO3 in Extracelluar Fluids b/c:
Excess retention of HCO3 Increased excretion of H+ (vomiting) Ingestion of Alkaline Drugs such as NaHCO3 |
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What are the pathologies, which lead to Respiratory Acidosis
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*Pathological condition that damages the respiratory center
-Decreased in Lungs ability to eliminate CO2 -Obstructions of the Airways (Pneumonia, Pulmonary Edema) -Diffusion Problems (Pulmonary Emphysema; Shock; Embolism) |
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Results from Decreased Ventilation and Increased PCO2
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Respiratory Acidosis
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Results from Increased Ventilation and Decreased PCO2
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Respiratory Alkalosis
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Results from Increased amount of acids in the body
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Metabolic Acidosis
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Results from an Increased HCO3 in the Extracellular Fluids
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Metabolic Alkalosis
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ECF is divided among what 4 compartments?
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Interstitial
Intravascular Lymphatic Transcellular |
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Average blood volume of a normal adult is?
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8% TBW or 5L
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Cells shrink when placed in what type of solution?
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Hypertonic
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What are the Body's Cations?
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Potassium, Magnesium, Sodium, Calcium
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What are the Body's Anions?
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HCO3, Cl, Organic Phosphate, Protein
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What is/are the dominant Cation in ECF?
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Sodium (142) and (10) ICF
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What is/are the dominant Anion in ECF?
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HCO3 (24) and (12) ICF
Cl (104) and (4) ICF |
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What is/are the dominant Cation in ICF?
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Potassium (156) and (5) ECF
Magnesium (26) and (2) ECF |
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What is/are the dominant Anion in ICF?
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Protein (54) and (16) ECF
Organic Phosphate (40-95) and (2) ECF |
