Which of the following disorders has an abnormal erythrocyte membrane that is abnormally permeable, resulting in the loss of K+ and water and decreased deformability?
A) Overhydrated hereditary stomatocytosis
B) Dehydrated hereditary stomatocytosis
C) Hereditary elliptocytosis
D) Hereditary spherocytosis

Question

Quizplus · Accepted Answer

The disorder described in the question is Dehydrated hereditary stomatocytosis, which is characterized by an abnormal erythrocyte membrane that is abnormally permeable, resulting in the loss of K+ and water and decreased deformability. Overhydrated hereditary stomatocytosis is characterized by an abnormally high water content in the erythrocyte, while Hereditary elliptocytosis and Hereditary spherocytosis both involve abnormalities in erythrocyte shape.

Which of the Following Disorders Has an Abnormal Erythrocyte Membrane