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Serum Na (Sodium)
- 135 - 145
- -Cation (+)
- -Maintains osmotic pressures & acid-base balance.
- -Assists w/the transmission of nerve impulses.
Serum K (Potassium)
- 3.5 - 5.1
- -Cation (+)
- -Regulates cellular water , balance.
- -Evaluates Cardiac, Renal, & GI function, & the need for IV replacement therapy.
- -Regulates electrical conduction in muscle cells & acid-base balance.
Serum Cl (Chloride)
- 98 - 107
- -Anion (-)
- -Most abundant body anion in the extracellular fluid.
- -Counterblances cations (+) (ex. Na) & acts as a buffer during oxygen and carbon dioxide exchange in RBCs.
- -Aids in digestion and maintaining osmotic pressure and water balance.
Serum HCO3- (Bicarbonate)
- 22 - 29
- -Part of the bicarbonate-carbonic acid buffering system.
- -Mainly responsible for regulating pH of body fluids.
aPTT (Activated Partial Thromboplastin Time)
- 20 - 36 seconds (1.5 - 2.5x normal when on heparin therapy)
- -Coagulation Studies
- - Evaluates how well the coagulation sequence is functioning.
- - Screens for deficiencies & inhibitors of all clotting factors except VII & XIII.
- -Used to monitor Heparin Thearapy and Coagulation disorders.
PT (Prothrombin Time) - MALE
- 9.6 - 11.8 seconds
- -Measures the amount of time it takes for clot formation.
- -Used to monitor warfarin sodium (Coumadin) Therapy, screen for disfunction of the extrinsic system that results from liver disease, Vitamin K deficiency, or Disseminated Intravascular Coagulation (DIC).