mdt 160 6-7

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mdt 160 6-7
2015-10-27 17:11:05
mdt 160

mdt 160 6-7
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  1. a condition in which blood pH falls below 7.35
  2. a condition in which blood pH rises above 7.45
  3. a mathematical calculation of the difference between the cations and anions measured in the electrolyte assay
    anion gap
  4. blood potassium levels above normal
  5. blood sodium levels above normal
  6. blood potassium levels below normal
  7. blood sodium levels below normal
  8. Name the four electrolytes commonly measured and state the reference range for each. Which are anions and which are cations?
    • Sodium (Na1) 135–148
    • Potassium (K1) 3.8–5.5
    • Chloride (Cl–) 98–108
    • Bicarbonate (total CO2-) 22–28
  9. Which electrolyte is most important in pH balance?
    bicarbonate anion
  10. The anion gap is calculated using the formula:
    ([ N A+] +[ K+ ] ) - ([Cl-]+ [HCO3-]) = AG (mmol/L)
  11. The cations not measured in the electrolyte test are __________; together these average___ mmol/L.
    • calcium and magnesium
    • 7
  12. The normal anion gap is
    10 to 17 mmol/L.
  13. Electrolyte measurement is often ordered as a STAT test because?
    electrolyte imbalances can be life-threatening
  14. A buffer is the combination of a _________, and is a system that resists changes in pH
    weak acid or weak base and it’s salt
  15. The effectiveness of a buffer depends on the __________ in which it is placed
    pH of the environment
  16. To maintain electroneutrality, chloride diffuses into the cell, this is known as
    chloride shift
  17. A disorder caused by ventilatory dysfunction (a change in PCO2, a respiratory component).
    Primary respiratory acidosis or alkalosis
  18. a disorder resulting from a change in the bicarbonate level (renal or metabolic function)
    Nonrespiratory (metabolic) disorder
  19. insufficient oxygenation of the blood
  20. which electrolite Determines extracellular fluid volume
    Concentration determined by aldosterone levels and kidney function
    Sodium 135-148
  21. The use of __________ sample for pH and blood gas studies is recommended.
    arterial samples
  22. __________samples can be used if pulmonary function or O2 transport is not being assessed.
    Peripheral venous
  23. The recommended collection device for arterial blood samples is ____________
    a preheparinized plastic syringe