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13 Cards in this Set
- Front
- Back
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Where is carbonic anhydrase located? |
Vascular endothelium and in erythrocytes |
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What meds used to treat altitude sickness and how ?
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Carbonic anhydrase by stimulating ventilation
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What is hendersen hasselbach equation?
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pH = pKA + log (HCO3-/CO2); pkA = 6.1; bicarb = 24; CO2 replaced by PaCO2 x 0.03
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What is contraction alkalosis?
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Low volume state ~ acid loss ( for e.g. vomiting) that results in a lowered blood volume and renal perfusion
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What acitivates renin agniotensis aldosterone system?
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Contraction alkalosis ?
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Where does renin change into angiotensis I then to angiotensin II ?
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In lung
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Where does angiotensisn II change into aldosterone ?
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Adrenal cortex
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Name causes of non-anion gap metabolic acidosis?
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MUDPILES: methanol, uremia, DKA, Paraldehyde; INH and iron; Lactic acidosis, ethylene glycol, ethanol, salycilate
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What are causes of chloride loss in metabolic alkalosis?
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CF, diuretics
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What are causes of metabolic alkalosis?
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Chronic diuretic therapy and chronic hypercapnia
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When do you treat metabolic alkalosis?
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Patients on digitalis preparations, with low ionized calcium and/or magnesium, low potassium, low ventilatory drive suppression
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Whats normal PaO2? How to know normal range in kids?
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PaO2 = 100-0.3 x age in years
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What size of catheter should u use in small vs older children?
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2.5 Fr in small children
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