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Blood alterations - partial
Approximately 1/2 of the powerpoint
57
Pathology
Pre-School
04/01/2012

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Term
A general reduction of systemic erythrocytes is _____________
Definition
Anemia
Term
RBC morphology has three general terms that refer to the sizes of cells. Those terms are?
Definition
Normocytic, Macrocytic and Microcytic
Term
When an RBC is called Hyperchromic, what is this describing?
Definition
Excess hemoglobin content. Hypochromic would be too little, and normochromic would be just right
Term
T/F: anemia would affect the cardio vascular system by increasing preload
Definition
F: anemia can lead to hypoxemia which contributes to causing systemic arterial dilation leading to decreased vasc. resist. which effectively reduces afterload
Term
A patient who is anemic, has reduced ______ capacity and by demonstrate _______ characterized by difficulty breathing
Definition
O2, dyspnea
Term
Anemia can affect the nervous system. Myelin degeneration often occurs if this vitamin is deficient
Definition
B12
Term

Gastrointestinal signs of anemia include all of the following but:

1. Pain,

2. nausea,

3. vomiting,

4. esophagitis

5. None of the above

Definition
4. The anemia may also cause anorexia
Term
What is a physiologic manifestation of anemia?
Definition
Reduced O2 carrying capacity
Term
T/F: symptoms of anemia can vary based on the individual's ability to compensate
Definition
T. Also on the severity of the anemia
Term

A classic example of an symptom of anemia would be:

1. erythema,

2. edema,

3. petechiae,

4. Fatigue,

5. All of the above

Definition
4. Fatigue. Other classic signs would include weakness, dyspnea, pallor
Term
T/F: Anemia never causes hypoxemia, just hypoxia
Definition
F: it can manifest as hypoxemia leading to tissue hypoxia
Term
Hypoxemia is what?
Definition
reduced O2 levels in the blood
Term
Normal Hgb levels are? Normal hematocrit levels?
Definition
15, 45
Term
When assessing for anemia, when would a nurse expect to see S &S based on lab values?
Definition
When the H & H are at about 1/2 normal values (individually)
Term
What does Macrocytic-Normochromic mean when discussing anemia?
Definition
Large cell with normal hemoglobin
Term
Macrocytic-normochroic anemia is also called
Definition
megaloblastic anemia
Term
Megaloblasts are what?
Definition
unusually large stem cells that result from defective RBC DNA synthesis.
Term
What deficiencies result in macrocytic-normochromic anemia? (3)
Definition
Vit B12, Folate, Coenzymes for nuclear maturation.
Term
Megaloblasts have a greater chance of dying than normoblasts. This would result in fewer ___________
Definition
Reticulocytes (and subsequently, erythrocytes in circulation.)
Term
What is a GI cause of Vit B12 deficiency?
Definition
absence of Intrinsic Factor
Term
The most common megaloblastic anemia is ____________
Definition
pernicious
Term
Pernicious anemia results from a __________ deficiency
Definition
Vit B12
Term
T/F: Intrinsic Factor is manufactured by symbiotic bacteria found in our large intestine
Definition
F: It is manufactured by parietal cells in the stomach
Term
Gastric bypass patients are susceptible to this type of anemia:
Definition
pernicious anemia: part of GI tract has been removed from the "flow"
Term
T/F: pernicious anemia demonstrates slow onset and can be seen w/ an Hgb of 11
Definition
F: IT IS A SLOW ONSET, but the Hgb would likely be 7-8g/dL
Term
Nerve demyelination, loss of appetite, abdominal pain and weight loss would likely be seen in this anemia
Definition
pernicious
Term
T/F: a vitamin B12 deficient person will need lifelong treatment with shots or high oral doses
Definition
T:
Term
T/F: pernicious anemia is more easy to detect in older people.
Definition
F: it is subtle and the onset is slow, making it difficult to see in a population that has other age related issues present.
Term
T/F: Folate/folic acid is important in our diet and requires intrinsic factor (IF) to be properly absorbed by the body
Definition
F: B12 needs IF
Term
T/F: Folic acid absorption occurs in the small intestine and depends on no other facilitating factor
Definition
T:
Term
T/F: Folic acid requires daily oral does until levels are adequate, and does not normally need lifelong treatment
Definition
T:
Term
Anemia w/ small RBC's with lower than normal Hgb content would be called?
Definition
Microcytic-hypochromic anemia
Term

Microcytic hypochromic anemias are related to disorders in all of the following but:

1. iron metabolism,

2. porphyrin synthesis,

3. heme synthesis,

4. globulin synthesis.

5. none of the above

Definition
5. All the above can contribute to this anemia
Term
Iron deficiency, sideroblastic, thalassemia: these are all types of ____________ anemia
Definition
Microcytic-hypochromic anemia
Term
The most common anemia world wide is?
Definition
Iron deficiency anemia
Term
T/F: worldwide, limited dietary iron is the most common reason for anemia
Definition
T:
Term
Symptoms of iron deficiency anemia appear at what Hgb level?
Definition
7-8 g/dL
Term

Iron deficiency anemia that has progressed may manifest all but:

1. brittle, thin, nails,

2. coarsely ridged, spoon shaped nails,

3. a red, sore painful tongue,

4. painful hyphae in the joints

5. None of the above

Definition
4. unless you have iron loving fungus that are mad that you are depriving them.
Term

Which of the following groups of people are at increased risk of developing iron defic. anemia:

1. Pregnant,

2. Men,

3. Frequent MRI,

4. IV drug users.

5. All of the above

Definition
1
Term
A group of anemia disorders characterized by not properly using Fe in the erythroblasts is?
Definition
Sideroblastic Anemia
Term
In sideroblastic anemia, one may see signs of iron overload, or ____________
Definition
hemosiderosis
Term
T/F: a patient w/ sideroblastic anemia has a genetic condition that causes them to excrete too much Fe and not absorb enough Fe
Definition
F: it is genetic, but not from an absorption/excretion angle; body does not properly incorporate iron into Hgb.
Term
Signs of iron overload, along with fatige, weakness, and hypoxia, may be indicative of?
Definition
Sideroblastic Anemia
Term
T/F: Normocytic-Normochromic means cells have the more common types of anemias
Definition
F: these anemias are less common
Term
What are the normocytic-normochromic anemias?
Definition
Aplastic, Post-hemorrhagic, Hemolytic, Sickle-cell, anemia of chronic inflammation.
Term
T/F: a homozygous individual who is positive for sickle cell will have crisis episodes
Definition
T:
Term
T/F: a heterozygous individual who is positive for sickle cell will have crisis episodes
Definition
F: these would be the carriers, but not manifest the disease.
Term
In sickle cell anemia, the white blood cells stay/become ___________ in shape
Definition
White blood cells remain "normal" shaped. Don't be fooled, Sickle cell is a disorder affecting RBC's that become that alter in shape, some looking like a mean sickle (in cross section)
Term
Why do sickle cells cause problems for the patient?
Definition
The cells don't bend properly and plug small vessels/capilaries. This leads to pain and ischemia, as well as organ dysfunction
Term
T/F: Sickle cell patients are usually asyptomatic until Po2 drops in their system
Definition
T:
Term

Sickle cell carriers may have all of the following hemoglobins except:

1. HbA,

2. HbB,

3. HbC,

4. HbS,

5. All of the above

Definition
2. HbB
Term
T/F: Producing too many RBC's can cause a patients difficulties, as do anemias
Definition
T:
Term
Polycythemia is what type of anemia?
Definition
It isn't an anemia. It is the production of too many RBCs
Term
T/F: Relative polycythemia means it is inherited from the maternal genetic donor through mitochondrial DNA
Definition
F: it is relative to hemoconcentration (blood concentration) and reflects dehydration.
Term
T/F: the treatment for relative polycythemia is fluid replacement
Definition
T:
Term

Primary, absolute overproduction of RBCs is known as:

1. Polycythemia Vera,

2. Polycythemia gravida,

3. Megacythemia Vera,

4. Megacythemia Gravida,

5. None of the above

Definition
1
Term

Clinical manifestations of Polycythemia Vera include all but:

1. light headed,

2. visual disturbances,

3. headaches,

4. enlarged liver and spleen,

5. none of the above

Definition
5. this question written deliberately tricky: All the item ARE manifestations of Poly-vera . . . a double negative question
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