CHAPTER 13 DISEASES OF RBCS LATEST EXAM QUESTIONS
AND CORRECT ANSWERS GRADED A+/ NUR 100 LATEST EXAM
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.
Ans: 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.
Quiz Hematocrit
Ans:
Quiz Stephanie has systemic lupus erythematous. Her peripheral blood smear reveals
spherocytosis and poikilocytosis. Reticulocyte percentage is elevated.
Ans: 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).
Quiz 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.
Ans: 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.
Quiz Timothy was recently diagnosed with pernicious anemia presents with complaints of
fatigue and dyspnea. He also comments that his tongue "hurts" and feels "strange," and he is
experiencing tingling in his hands and fingers. Laboratory values reveal low hemoglobin and
hematocrit, with high mean corpuscular volume values.
Ans: In pernicious anemia, the ability to absorb vitamin B12 is compromised. As this vitamin is
necessary for DNA synthesis, lack of this vitamin affects red blood cell synthesis. Abnormal DNA
synthesis and an altered growth cycle result in larger than normal cells. Vitamin B12 is also
important for neuronal signaling. Deficiencies in this vitamin may cause tingling sensations in
the hands. It may also cause swelling of the tongue.
Quiz Rosalie reports bruising easily and nose bleeds. Bone marrow biopsy results reveal
pancytopenia. Blood values confirm these results, showing reduced red blood cells, white blood
cells, platelets, and reticulocytes.
Ans: Aplastic Anemia
AND CORRECT ANSWERS GRADED A+/ NUR 100 LATEST EXAM
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.
Ans: 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.
Quiz Hematocrit
Ans:
Quiz Stephanie has systemic lupus erythematous. Her peripheral blood smear reveals
spherocytosis and poikilocytosis. Reticulocyte percentage is elevated.
Ans: 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).
Quiz 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.
Ans: 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.
Quiz Timothy was recently diagnosed with pernicious anemia presents with complaints of
fatigue and dyspnea. He also comments that his tongue "hurts" and feels "strange," and he is
experiencing tingling in his hands and fingers. Laboratory values reveal low hemoglobin and
hematocrit, with high mean corpuscular volume values.
Ans: In pernicious anemia, the ability to absorb vitamin B12 is compromised. As this vitamin is
necessary for DNA synthesis, lack of this vitamin affects red blood cell synthesis. Abnormal DNA
synthesis and an altered growth cycle result in larger than normal cells. Vitamin B12 is also
important for neuronal signaling. Deficiencies in this vitamin may cause tingling sensations in
the hands. It may also cause swelling of the tongue.
Quiz Rosalie reports bruising easily and nose bleeds. Bone marrow biopsy results reveal
pancytopenia. Blood values confirm these results, showing reduced red blood cells, white blood
cells, platelets, and reticulocytes.
Ans: Aplastic Anemia
