A patient has chronic hemolysis, spherocytes, an increased M… | 마이메르시 MyMerci
이 문제가 수록된 문제집미국 임상병리사 MLS(ASCP/ASCPi) 문제은행·CAT문제집 보기
Hematology · 혈액학·지혈
문제
A patient has chronic hemolysis, spherocytes, an increased MCHC, and a negative DAT. Which specialized screening result supports hereditary spherocytosis?
1Increased fluorescence in the EMA-binding test
2Absent reticulocytes in every case
3Positive sickle solubility only
4Decreased eosin-5-maleimide fluorescence✓ 정답
해설
Reduced binding of eosin-5-maleimide to affected red-cell membrane proteins produces decreased fluorescence and supports hereditary spherocytosis.