[Ex4] - C23 - AP Flashcards
23-1. A patient’s anemia is described as having erythrocytes that demonstrate poikilocytosis. The
nurse would recognize the erythrocytes would be:
a. pale in color.
b. present in various sizes.
c. able to assume various shapes.
d. live only a few days.
ANS: C
Poikilocytosis means the erythrocytes are able to assume various shapes; it does not refer to
color, size, and life span.
23-2. A newborn is diagnosed with congenital intrinsic factor deficiency. Which of the following
types of anemia will the nurse see documented on the chart?
a. Iron deficiency
b. Pernicious
c. Sideroblastic
d. Hemolytic
ANS: B
A lack of the intrinsic factor leads to pernicious anemia. Iron deficiency anemia is not related
to the intrinsic factor. Pernicious anemia is due to the lack of the intrinsic factor; sideroblastic
anemia is not related to the intrinsic factor. Hemolytic anemia results from destruction of
cells.
23-3. When a nurse is reviewing lab results and notices that the erythrocytes contain an abnormally
low concentration of hemoglobin, the nurse calls these erythrocytes:
a. hyperchromic.
b. hypochromic.
c. macrocytic.
d. microcytic.
ANS: B
Hypochromic erythrocytes have low concentrations of hemoglobin. Hyperchromic
erythrocytes have high concentrations of hemoglobin. Macrocytic and microcytic refer to cell
size.
23-4. A 5 year old was diagnosed with normocytic-normochromic anemia. Which type of anemia
does the nurse suspect the patient has?
a. Sideroblastic
b. Hemolytic
c. Pernicious
d. Iron deficiency
ANS: B
Hemolytic anemia is an example of normocytic-normochromic anemia. Sideroblastic anemia
is an example of microcytic hypochromic anemia. Pernicious anemia is an example of a
macrocytic anemia. Iron deficiency anemia is an example of microcytic hypochromic anemia.
23-5. After initial compensation, what hemodynamic change should the nurse monitor for in a
patient who has a reduction in the number of circulating erythrocytes?
a. Increased viscosity of blood
b. Decreased cardiac output
c. Altered coagulation
d. Hyperdynamic circulatory state
ANS: D
After initial compensation, the blood flows faster and more turbulently than normal blood,
causing a hyperdynamic circulatory state. Blood viscosity decreases rather than increases.
Cardiac output increases. Alteration in coagulation does not occur.
23-6. A 25-year-old female has a heavy menses during which she loses a profuse amount of blood.
Which of the following adaptations should the nurse expect?
a. Movement of fluid into the cell
b. Decreased cardiac output
c. Decreased oxygen release from hemoglobin
d. Peripheral vasoconstriction
ANS: D
When the anemia is severe or acute in onset (e.g., hemorrhage), the initial compensatory
mechanism is peripheral blood vessel constriction, diverting blood flow to essential vital
organs. Fluid moves into the vascular space, not the cell. Blood volume increases; thus,
cardiac output increases. There is an increase in hemoglobin release of oxygen.
23-7. A 60-year-old patient diagnosed with emphysema experiences a rapid and pounding heart,
dizziness, and fatigue with exertion. Which respiratory assessment findings indicate the
respiratory system is compensating for the increased oxygen demand?
a. Bronchoconstriction
b. Increased rate and depth of breathing
c. Dyspnea
d. Activation of the renin-angiotensin response
ANS: B
The rate and depth of breathing increase in an effort to increase oxygen availability
accompanied by an increase in the release of oxygen from hemoglobin. Bronchodilation
occurs, not constriction. Dyspnea is not a compensatory mechanism but a side effect of the
body’s attempt to increase oxygen. The respiratory system does not activate the
renin-angiotensin response; the kidneys are involved.
23-8. A 2-year-old malnourished child is diagnosed with vitamin B12 and folate deficiencies. A
blood smear suggests the deficiency is macrocytic and normochromic. The nurse would
expect the hemoglobin to be:
a. normal.
b. sporadic.
c. low.
d. high.
ANS: A
The macrocytic (megaloblastic) anemias are characterized by unusually large stem cells
(megaloblasts) in the marrow that mature into erythrocytes that are unusually large in size
(macrocytic), thickness, and volume. The hemoglobin content is normal, thus allowing them
to be classified as normochromic.
23-9. A 45 year old is diagnosed with macrocytic, normochromic anemia. The nurse suspects the
most likely cause of this condition is:
a. defective DNA synthesis.
b. abnormal synthesis of hemoglobin.
c. defective use of vitamin C.
d. blocked protein synthesis.
ANS: A
These anemias are the result of ineffective erythrocyte DNA synthesis; hemoglobin is normal.
These anemias are not related to use of vitamin C or blocked protein synthesis.
23-10. A 35-year-old female is diagnosed with vitamin B12 deficiency anemia (pernicious anemia).
The most likely cause is a decrease in:
a. ferritin.
b. gastric enzymes.
c. intrinsic factor.
d. erythropoietin.
ANS: C
The underlying alteration in pernicious anemia (PA) is the absence of intrinsic factor (IF), an
enzyme required for gastric absorption of dietary vitamin B12, a vitamin essential for nuclear
maturation, and DNA synthesis in red blood cells. PA is not due to a decrease in ferritin,
gastric enzymes, or erythropoietin but to a lack of intrinsic factor.
23-11. A 58-year-old female presents in the clinic with fatigue, weight loss, and tingling in her
fingers. Laboratory findings show low hemoglobin and hematocrit, a high mean corpuscular
volume, and normal plasma iron. These assessment findings are consistent with which type of
anemia?
a. Hemolytic anemia
b. Pernicious anemia
c. Iron deficiency anemia
d. Aplastic anemia
ANS: B
Pernicious anemia is manifested by tingling paresthesias of feet and fingers. The
symptomology is not associated with hemolytic, iron deficiency, or aplastic anemias.
23-12. Which individual should the nurse assess initially for a vitamin B12 deficiency anemia?
a. A 3-year-old female who is a fussy eater
b. A 26-year-old female in the second trimester of her first pregnancy
c. A 47-year-old male who had a gastrectomy procedure
d. A 64-year-old male with a history of duodenal ulcers
ANS: C
With removal of the stomach, the intrinsic factor is also removed, leading to an inability to
absorb B12; thus, the person with removal of the stomach is at greatest risk. Being a fussy
eater, being pregnant, and having a history of duodenal ulcers are not risk factors for vitamin
B12 deficiency anemia.
23-13. A 65 year old experienced loss of appetite, weight loss, lemon-yellow skin, liver enlargement,
and a beefy red tongue shortly before her death. Autopsy suggested pernicious anemia, and
the cause of death would most likely reveal:
a. brain hypoxia.
b. liver hypoxia.
c. heart failure.
d. kidney failure.
ANS: C
When the hemoglobin has decreased to 7–8 grams per deciliter, the individual experiences the
classic symptoms of anemia: weakness, fatigue, paresthesias of feet and fingers, difficulty
walking, loss of appetite, abdominal pain, weight loss, and a sore tongue that is smooth and
beefy red. The skin may become lemon yellow (sallow), which is caused by a combination of
pallor and jaundice. Hepatomegaly, indicating right-sided heart failure, may be present in the
elderly. The symptoms are not associated with brain or liver hypoxia, or kidney failure.
23-14. A 40-year-old male’s history includes being a vegetarian and abusing alcohol. Which of the
following factors put him at greatest risk for developing folate deficiency anemia?
a. Being vegetarian
b. Being alcoholic
c. Age
d. Gender
ANS: B
Folate deficiency occurs more often in alcoholics and individuals who are malnourished
because of fad diets or diets low in vegetables. Being alcoholic promotes the greatest risk,
since this disorder is diet related. A diet high in vegetables would help prevent folate
deficiency. Age is not a factor in folate deficiency. Gender is not a factor in folate deficiency.
23-15. A patient who demonstrates chronic gastrointestinal bleeding is diagnosed with anemia. What
is the primary cause of the patient’s anemia?
a. Vitamin B12 deficiency
b. Iron deficiency
c. Folate deficiency
d. Bone marrow failure
ANS: B
A continuous loss of blood is one of the most common causes of iron deficiency anemia
(IDA). Gastrointestinal bleeding does not lead to vitamin B12 deficiency, folate deficiency, or
bone marrow failure.
23-16. The nurse will check which of the following tests to directly measure iron stores?
a. Serum ferritin
b. Transferrin saturation
c. Bone marrow biopsy
d. Total iron-binding capacity
ANS: C
Iron stores are measured directly by bone marrow biopsy, not serum ferritin, transferrin
saturation, and total iron-binding capacity.
23-17. A 21-year-old female was recently diagnosed with iron deficiency anemia. In addition to
fatigue and weakness, which of the following clinical signs and symptoms would she most
likely exhibit?
a. Hyperactivity
b. Spoon-shaped nails
c. Gait problems
d. Petechiae
ANS: B
Iron deficiency anemia is manifested by fingernails that become brittle and spoon shaped or
concave. It does not involve hyperactivity, gait problems, or petechiae.
23-18. A 21-year-old woman was recently diagnosed with iron deficiency anemia. Her hematocrit is
32%. Which of the following treatments would the nurse expect to be prescribed for her?
a. Iron replacement
b. Splenectomy
c. A bone marrow transplant
d. No treatment is necessary
ANS: A
Iron replacement therapy is required and very effective. Initial doses are 150–200 milligrams
per day and are continued until the serum ferritin level reaches 50 milligrams per liter. Neither
a splenectomy nor a bone marrow transplant is indicated.
23-19. A 45-year-old male is diagnosed with sideroblastic anemia. When he asks what the most
likely cause of this disease is, what is the nurse’s best response?
a. Ineffective iron uptake and abnormal hemoglobin production
b. Misshapen erythrocytes with low hemoglobin
c. Decreased levels of tissue iron with megaloblastic erythrocytes
d. Premature erythrocyte destruction and erythropoietin deficiency
ANS: A
Sideroblastic anemia is due to ineffective iron uptake and hemoglobin production.
Erythrocytes are neither misshapen, premature, nor destroyed in sideroblastic anemia.
Sideroblastic anemia is not associated with decreased levels of tissue iron with megaloblastic
erthrocytes.
23-20. A 50-year-old female was diagnosed with sideroblastic anemia. Which of the following
assessment findings would most likely occur?
a. Bronze-colored skin
b. Decreased iron
c. Normochromic erythrocytes
d. Aplastic bone marrow
ANS: A
The skin of the patient with sideroblastic anemia is bronze in color. The patient with
sideroblastic anemia shows signs of iron overload. The erythrocytes of individuals with
sideroblastic anemia are hypochromic. The bone marrow is not aplastic but contains ringed
sideroblasts.