Transtubular Potassium Gradient at CCD ÇÇÁúÁýÇÕ°ü¿¡¼­ ¿ä¼¼°ü°æÀ¯ Ä®·ý±â¿ï±â

TTKG = (Urine_K / Plasma_K) / (Urine_Osm / Plasma_Osm)

ÀԷ°ª:

Urine_K
Plasma_K
Urine_Osm
Plasma_Osm

°á°ú°ª:

TTKG
 
Decimal Precision:

ÇÇÁúÁýÇÕ°ü(cortical collecting duct)¿¡¼­ ¿ä¼¼°ü°æÀ¯ Ä®·ý±â¿ï±â(transtubular potassium gradient: TTKG)´Â Ä®·ýº¸Á¸ Áö¼ö¸¦ ¹Ý¿µÇÕ´Ï´Ù. Á¤»ó½Ä»ç¸¦ ÇÏ´Â Á¤»óÀο¡¼­ TTKG´Â 8-9ÀÓ. Ä®·ýÅõ¿©½Ã TTKG´Â 11±îÁö ¿Ã¶ó°¥ ¼ö ÀÖÀ½.

°íÄ®·ýÇ÷Áõ¿¡¼­, ³·Àº TTKG (< 7)´Â Àú¾Ëµµ½ºÅ×·ÐÁõÀ» ÀǹÌ.

´Ù¸¥ Áúº´ÀÌ ¾øÀ» ¶§, ÀúÄ®·ýÇ÷Áõ¿¡¼­ TTKG´Â ¹Ýµå½Ã < 3À̾î¾ß ÇÔ(ÀϺΠ¿¬±¸ÀÚ´Â TTKG < 2¸¦ ÁÖÀå). ´Ù¸¥ Áúº´ÀÌ ¾øÀ» ¶§, °íÄ®·ýÇ÷Áõ¿¡¼­ TTKG ±â´ëÄ¡´Â > 10.


Âü°í¹®Çå

West ML, Marsden PA, Richardson RM, et. al., New clinical approach to evaluate disorders of potassium excretion, Mineral Electrolyt Metab, 12:234,1986.

Ethier JH, Kamel KS, Magner PO, et. al., The transtubular potassium concentration in patients with hypokalemia and hyperkalemia, Am J Kidney Dis, 15:309,1990.


 


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