Magnesium And Bicarbonate Flashcards
9th most abundant cation
Magnesium
Enzyme activator
Mg
Vasodilator and cause decrease uterine hyperactivity in eclampsic state and increase in uterine blood flow
Magnesium
Important in maintaining th structure of dna, rna and ribosomes, synthesis of CHO, CHON and lipids
Mg
Forms of magnesium
Free mg - 55
Protein bound mg- 30
Complexes mg - 15
Increase renal absorption, increase intestinal absorption in magnesium
Pth
Increase r nal excretion in mg
Aldosterone, thyroxine, tetradothyronine
Reference method in mg
Atomic absorption spectrophometry
Using titan yellow dye what method
Dye lake method
Dye lake method using
Clayton or thiazole
2nd most abundant in the ECF
Bicarbonate
Accounts for 90% of the total co2 of physiologic ph
Hco3
Play major role in buffer system in blood
Bicarbonate
It composed of undissociated NaHCO3 carbonate and carbonate
Bicarbonate
Diffuses out of the cell in exchange for chloride to maintain ionic charge neutrality within the cell
Bicarbonate
It is the difference between the unmeasured anions and cations
Anion gap
Created by the conc diff between commonly measured cations and anions
Anion gap
Used to monitor recovery from diabetic ketoacidosis
Anion gap
Abnormal anion gap in serum healthy person indicates
Instrument problem
Specimen of choice in bicarbonate
Blood anaerobically collected
Methods in bicarbonate
ISE using pc02 electrode
Enzaymatic phosphoenolypyruvate carboxylase and dehydrogenase
Rv of bicarbonate
21-28meq/L
Deceased measured anions
Hypoalbunemia
Inc measured cations
Hypercalcemia
Instrument error
Hypernatremia
Second most abundant intracellular cation next to potassium
Magnesium
