Chapter 13 Diseases of RBCs UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Ethan presents with hypotension, tachycardia, and hyperventilation. You learn that he received a
severe wound while using a chain saw. Laboratory results reveal low hematocrit, low
hemoglobin, and normocytic normochromic anemia. - CORRECT ANSWER -Anemia
Caused by Rapid Blood Loss
The patient's injury induced acute blood loss resulting in anemia. Blood loss in this manner
causes a reduction in red blood cells, lowering the percentage of red blood cells in the sample,
also known as hematocrit. Hemoglobin, the protein in red blood cells, is also lost with bleeding.
Hematocrit - CORRECT ANSWER -
Stephanie has systemic lupus erythematous. Her peripheral blood smear reveals spherocytosis
and poikilocytosis. Reticulocyte percentage is elevated. - CORRECT ANSWER -
Hemolytic Anemia
Spherocytosis is a form of hemolytic anemia, in which red blood cells are sphere-shaped, rather
than the normal biconcave shape. Poikilocytosis refers to the presence of abnormally-shaped red
blood cells. Reticulocytes are immature red blood cells. Percentage of reticulocytes elevate in
conditions such as hemolytic anemia (where a large number of red blood cells are being
destroyed).
Nina, age 23, has the primary complaint of heavy menstrual periods. Blood laboratory values
show low hemoglobin and hematocrit with microcytic and hypochromic cells. Serum ferritin is
low with elevated total iron binding capacity. - CORRECT ANSWER -Iron is an essential
component in the synthesis of hemoglobin. Without adequate iron, as indicated by low serum
ferritin and elevated total iron binding capacity, red blood cell formation cannot proceed as
normal. Lacking the necessary hemoglobin, red blood cells take on a smaller, paler appearance.
ACTUAL Exam Questions and CORRECT
Answers
Ethan presents with hypotension, tachycardia, and hyperventilation. You learn that he received a
severe wound while using a chain saw. Laboratory results reveal low hematocrit, low
hemoglobin, and normocytic normochromic anemia. - CORRECT ANSWER -Anemia
Caused by Rapid Blood Loss
The patient's injury induced acute blood loss resulting in anemia. Blood loss in this manner
causes a reduction in red blood cells, lowering the percentage of red blood cells in the sample,
also known as hematocrit. Hemoglobin, the protein in red blood cells, is also lost with bleeding.
Hematocrit - CORRECT ANSWER -
Stephanie has systemic lupus erythematous. Her peripheral blood smear reveals spherocytosis
and poikilocytosis. Reticulocyte percentage is elevated. - CORRECT ANSWER -
Hemolytic Anemia
Spherocytosis is a form of hemolytic anemia, in which red blood cells are sphere-shaped, rather
than the normal biconcave shape. Poikilocytosis refers to the presence of abnormally-shaped red
blood cells. Reticulocytes are immature red blood cells. Percentage of reticulocytes elevate in
conditions such as hemolytic anemia (where a large number of red blood cells are being
destroyed).
Nina, age 23, has the primary complaint of heavy menstrual periods. Blood laboratory values
show low hemoglobin and hematocrit with microcytic and hypochromic cells. Serum ferritin is
low with elevated total iron binding capacity. - CORRECT ANSWER -Iron is an essential
component in the synthesis of hemoglobin. Without adequate iron, as indicated by low serum
ferritin and elevated total iron binding capacity, red blood cell formation cannot proceed as
normal. Lacking the necessary hemoglobin, red blood cells take on a smaller, paler appearance.
