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Ia chay vdi kem hap thu 10%:
Xet nghiem kem hap thu: A, D,E, K, phospho, calci, thieu mau (sat, folate, B 12)
Kham ruot non (phan md, Test vdi D - Xylose ) va hoi trang (Shiling +/-)
N guyen nhan triidc ruot
- Kho tieu (D - Xylose, thieu A, D, E, K), suy tuy ngoai tiet (viem tuy man, K tuy, M ucoviciclose), thieu hut mat (ii mat, benh hoi trang, cat doan ruot non).
- Viem mu do vi khuan d ruot non, nguyen nhan: bat thiidng hinh thai sau phau thuat, hep, tui thiia, giam van dong, trao ngiidc dai trang - ruot non.
N guyen nhan tai ruot
- Teo nhung mao: benh C oeliaque, Sprue tropicale, ky sinh trung, thuoc, khong dung nap siia, thieu hut m iln dich.
- Cat doan ruot non.
N guyen nhan sau ruot
- Benh ly ruot xuat tiet: thieu hut anti trypsin, ton thiidng dai trang, u lym pho.
- Tham nhiem dif6i niem mac benh W hipple: dai thiic bao PAS (+) trong 16p lam ina Propria va Lym phome. *>
Ia chay khong co kem hap thu 90%:
Ia chay do nhu dong (phan long, so" liidng nhieu, thudng xay ra vao buoi sang, sau an):
- Tang tiet horm on: cUdng giap, u carcinoid, u tuy giap trang).
- Benh th&n kinh thuc vat: dai diidng, am ylose.
- Benh dai trang chiic nang: chiem 80% ia chay man ti'nh.
I a chay do tang tiet (> 500g/ngay du nhin an): - Hoi chiing Zollinger - Ellison.
- Thuoc: nhuan trang loai kich thich, Biguanide, Colchicin, Digitalin.
- Viem dai trang vi the, u nhu.
- VIPom e, benh ly dai thuc bao he thong.
Ia chay tham thau (lo th^m thau >50 mosm, nhin an co hieu qua):
- Benh do dung thuoc nhuan trang.
- Thieu hut disaccharid (nhat la thieu hut lactose).
Ia chay xu at tiet (chan doan bang do thanh thai phan cua a ,a n ti trypsin )
- Viem da day phi dai (m enetrier).