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9 Cards in this Set
- Front
- Back
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Sodium
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- Absorbed in the small intestine
- Excreted in the urine - Minimum daily req: 15 meq - Nursing Int: Drawing the blood proximal to IV infusion will elevate results falsely |
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Potassium
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- Body obtains K from dietary ingestion
- Kidneys excrete or preserve K depending on the cellular need - K levels are used to evaluate, cardiac, renal, GI function, or need for IV repl. therapy |
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Nursing Considerations regarding Potassium
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- Using a tourniquet and clenching unclenching the hand before venous sampling can increase the value
- Do NOT draw from IV infusion site - Note the K changes in labs for client receiving K - Elevated WBCs and platelets may cause falsely elevated K |
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Chloride
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- Hydrochloric acid most abundant anion in the extracellular fluid
- Functions to counterbalance cations like sodium and acts as a buffer during O2 Co2 exchange in RBCs - Aids in digestion and maintaining osmotic pressure and water balance |
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Nursing Considerations regarding Chloride
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- Draw sample from an extremity doesnt have saline infusion
- Dont allow clenching and unclenching hands before drawing - Any condition accompanied by prolonged vomiting diarrhea will alter chloride levels |
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Serum Sodium Levels
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135 - 145 meq/l
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Serum Potassium Levels
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3.5 - 5.1 meq/l
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Serum Chloride Levels
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98 - 107 meq/l
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Venous Serum Bicarbonate Levels
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22 - 29 meq/l
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