NUR 350 Chap 29 Hematologic System Review Questions and Correct Answers
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NUR 350
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NUR 350
A nurse reviews a patient's laboratory report which shows a serum iron level of 150 mcg/dL and a total iron binding capacity (TIBC) of 300 mcg/dL. What would be the transferrin saturation of this patient? Record your answer using a whole number. 50%
Transferrin saturation indicates the availabilit...
NUR 350 Chap 29 Hematologic System
Review Questions and Correct Answers
A nurse reviews a patient's laboratory report which shows a serum iron level of 150
mcg/dL and a total iron binding capacity (TIBC) of 300 mcg/dL. What would be the
transferrin saturation of this patient? Record your answer using a whole number.
✅50%
Transferrin saturation indicates the availability of iron for erythropoiesis. It is calculated
by dividing serum iron by TIBC and multiplying by 100. A patient with a serum iron level
of 150 mcg/dL and a TIBC of 300 mcg/dL would have a transferrin saturation 50%, thus
150/300 x 100 = 50%.
pp. 600, 602
Which cells are known as polymorphonuclear leukocytes?
Basophils
Monocytes
Neutrophils
Eosinophils
Lymphocytes ✅Basophils
Neutrophils
Eosinophils
Leukocytes containing granules within the cytoplasm are called granulocytes, which are
also known as polymorphonuclear leukocytes. These cells include basophils,
neutrophils, and eosinophils. Monocytes and lymphocytes are agranulocytes, which do
not have granules within the cytoplasm.
p. 589
A nurse is performing a preoperative assessment of an anemic patient. The nurse
should obtain what information to help determine the patient's history related to surgery
or other treatments?
,The type of dietary pattern followed
Whether there is a history of dental extractions
Whether there is a history of blood transfusions
The course of postoperative wound healing in the past
Whether there is a history of specific surgical procedures such as gastrectomy
✅Whether there is a history of dental extractions
Whether there is a history of blood transfusions
The course of postoperative wound healing in the past
Whether there is a history of specific surgical procedures such as gastrectomy
When obtaining the patient's history related to surgery or other treatments, the nurse
should ask the patient about dental extractions. It may help to understand the severity of
bleeding and the wound healing process in the patient. The risk of transfusion reactions
and iron overload increases with the number of blood transfusions; they may lead to
anemia. Specific past surgical procedures, such as partial or total gastrectomy, may
involve removal of parietal cells. This may in turn reduce intrinsic factor needed for the
absorption of cobalamin. Many surgeries can affect the absorption of iron and
cobalamin. Asking about the wound healing process helps to determine bleeding
problems related to surgery. The dietary pattern helps to determine the nutritional status
of the patient; however, it is not related to surgery or other treatments.
p. 594
Which blood coagulation factor acts as a source to form clot?
Calcium
Fibrinogen
Prothrombin
Proaccelerin ✅Fibrinogen
Manufactured in the liver, fibrinogen (also known as clotting factor I) acts as a source of
fibrin and helps to form clots. Calcium (coagulation factor IV) is required at several
points in the coagulation cascade. Known as coagulation factor II, prothrombin is
converted to thrombin and activates fibrinogen. Proaccelerin is coagulation factor V,
which binds with coagulation factor X to activate prothrombin.
, p. 591
Which coagulation factor activates factor XI and is responsible for the initiation of the
intrinsic pathway?
Stuart factor
Labile factor
Hageman factor
Antihemophilic factor ✅Hageman factor
Also known as coagulation factor XII, the Hageman factor activates factor XI to initiate
the intrinsic pathway of blood coagulation during an injury. The Stuart factor
(coagulation factor X) activates the conversion of prothrombin to thrombin. Labile factor
is coagulation factor V; it binds with factor X to activate prothrombin. Antihemophilic
factor is coagulation factor VIII; it works with factor IX and calcium to activate factor X.
Test-Taking Tip: Identify option components as correct or incorrect. This may help you
identify a wrong answer.
p. 592
The nurse is reviewing the laboratory reports of a 20-year-old female patient. What does
the nurse interpret from the finding?
The patient has hemolytic anemia.
The patient has a low red blood cell count.
The patient has reduced hormonal secretion.
The patient has cobalamin and folic acid deficiency. ✅The patient has cobalamin and
folic acid deficiency.
The normal homocysteine for a female ranges from 3.7 to 10.4 µmol/L. The patient has
a homocysteine level 20 µmol/L, which is higher than normal. This indicates that the
patient has a cobalamin and folic acid deficiency. The normal erythrocyte sedimentation
rate is less than 30 mm/hr. The test indicates a normal reading of 26 mm/hr, ruling out
an inflammatory process in the body, which would be indicted by an elevated ESR. The
patient has a negative Coombs test, which indicates the absence of antibodies and Rh
factor, so the patient does not have hemolytic anemia. The normal erythropoietin levels
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