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16 Cards in this Set
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- Back
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milleq equation
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mEq=(mg X Valence)/MW
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Mosmol equaiton
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1) mOsm/L= (g/L)/MW X species X 1000
2) mOsm/amount=g/MW X species X 1000 |
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mEq/L of KCl = mEq/L K+ = mEq/L Cl-
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k
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General Rule about TPN
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if the gut works, use it
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Where is TPN given?
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central vein (reduces phlebitis
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When is the TPN timeframe appropriate
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patients needing long term (over 7d ays) of supplemental nutrition....NO justification for 4 days of TPN
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Some disease states that might require a tpn?
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severe gut dysfunction due to ex. crohns disease, ulcerative colitis, obstruction, short bowel syndrome from surgery, NPO
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4 items to check prior to TPN calculation?
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1) Water requirements (no overload or volume depletion)
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items to check prior to TPN
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water requirements....2) check albumin (low albumin will cause intravascular fluid loss, incorrect calcium, 3) check acidocity and alkalotic (bicarb, chloride.....4) calorites per gram of each
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Ph for acid for alkalosis
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acid is under 7.35....alk over 7.45....alk is high bicarb low Cl
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If pat is acidotic....need to have 50% sodium acetate instead of NaCl
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k
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dextrose kcal/g
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3.4
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amino acids kcal/g
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4
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Glucose kcal/g
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4
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pure fat kcal/g
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9
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10% fat emulsion, 20% fat emulsion
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1.1...2
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