TRANSPORT Flashcards

(50 cards)

1
Q

abnormally low number of circulating red blood cells

A

ANEMIA

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2
Q

causes of anemia

A
  • blood loss: bleeding
  • hemolysis (destruction of rbc)
  • impaired rbc production: lack of nutrients or bone marrow failure
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3
Q

effects of anemia

A
  • impaired oxygen transport
  • reduction of rbc indices ans hemoglobin levels
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4
Q

[ANEMIA]
- refers to cell

A

CYTIC

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5
Q

indicates smaller than normal

A

MICROCYTIC

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6
Q

indicates larger than normal

A

MACROCYTIC

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7
Q

[ANEMIA]
- refers to color

A

CHROMIC

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8
Q

gives the blood cell the red color

A

HEMOGLOBIN

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9
Q

indicates less hemoglobin in RBC

A

HYPOCHROMIC

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10
Q

premature destruction of RBC’s

A

HEMOLYTIC ANEMIA

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11
Q

HEMOLYTIC ANEMIA
retention of __

A

IRON

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12
Q

HEMOLYTIC ANEMIA
compensatory increase in ___

A

ERYTHROPOIESIS

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13
Q

HEMOLYTIC ANEMIA
normal blood cells

A

NORMOCYTIC

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14
Q

HEMOLYTIC ANEMIA
normal color indicating hemoglobin content is normal

A

NORMOCHROMIC

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15
Q

HEMOLYTIC ANEMIA
Give the signs and symptoms of hemolytic anemia

A
  • fatigue
  • dyspnea
  • tachycardia
  • may increase in unconjugated bilirubin = mild jaundice
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16
Q

HEMOLYTIC ANEMIA
destruction takes place in the spleen

A

EXTRAVASCULAR

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17
Q

HEMOLYTIC ANEMIA
- often associated with faulty heart valves
- hemoglobin binds to plasma proteins

A

INTRAVASCULAR

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18
Q

HEMOLYTIC ANEMIA
if too much hemoglobin in the blood:
- free hemoglobin in the blood
- makes plasma turn red

A

HEMOGLOBINEMIA

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19
Q

HEMOLYTIC ANEMIA
- excreted in urine
- make urine darker in color

A

HEMOGLOBINURIA

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20
Q

TYPES OF HEMOLYTIC ANEMIA
- hereditary spherocytosis ( affects rbc membrane making in a sphere)
- acquired hemolytic anemias (immune associated)

A

MEMBRANE DISORDERS

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21
Q

TYPES OF HEMOLYTIC ANEMIA
- affect hemoglobin
- sickle cell anemia
- thalassemia (faulty hemoglobin synthesis)
*Alpha, Beta

A

HEMOGLOBINOPATHIES

22
Q

TYPES OF HEMOLYTIC ANEMIA
- lifelong genetic disorder that causes rbc to break down when exposed to certain foods, medicines, or chemicals (triggers)

A

GLUCOSE 6 PHOSPHATE DEHYDROGENASE DEFICIENCY (G6PD)

23
Q
  • results in a reduction of all three hematopoietic cell lines: rbc, wbc, platelets
A

APLASTIC ANEMIA

24
Q

APLASTIC ANEMIA
onset may be insidious or ___ and ___

A

VERY ACUTE AND SEVERE

25
APLASTIC ANEMIA __ in number of neutrophils __ susceptibility to infection
decreased, increases
26
APLASTIC ANEMIA causes:
- exposure to high doses of radiation, chemicals, and toxins that suppress hematopoiesis (formation of blood cellular components)
27
- is a major cause of B12 deficiency - marcocytic — normochromic (megaloblastic)
PERNICIOUS ANEMIA (B12 ANEMIA)
28
Treatment of Pernicious Anemia
Lifelong IM injections of Vitamin B12
29
is a form of chronic gastritis that results in the gradual loss of gastric glandular cells
ATROPHIC GASTRITIS
30
is essential for synthesis of DNA
B12
31
is required for dna synthesis and rbc maturation
FOLIC ACID
32
ETIOLOGY - inadequate intake - increased demand - folate antagonist chemotherapy - malabsorption syndromes
FOLIC ACID DEFICIENCY ANEMIA
33
body uses iron to make hemoglobin
IRON DEFICIENCY ANEMIA
34
causes of iron deficiency anemia
- dietary deficiency - chronic blood loss - increased demands during growth periods
35
- chronic hemolytic anemia - inherited disorder - blood cells form an elongated shape and may adhere to vessel walls
SICKLE CELL DISEASE
36
- causes by a mutation in the beta chain of hemoglobin (HbS)
SICKLE CELL DISEASE
37
when hemoglobin is __ it forms the “sickle” shape
DEOXYGENATED
38
SICKLE CELL MECHANISM a person with ONE mutated gene (heterozygous = from mom/dad) __ of the beta chains are HbS proteins. - considered a __
AUTOSOMAL RECESSIVE TRAIT 40% carrier
39
SICKLE CELL MECHANISM if BOTH genes are sickle cell (homozygous = from mom and dad) __% - __% much more severe
80% - 95%
40
HbS is sensitive to changes in the oxygen content of RBCs ___ causes sickling
LOW O2
41
sickle shape — clumping — obstruction of microcirculation — ______
TISSUE HYPOXIA
42
sickling is initiallt reversible with ____
OXYGENATION
43
FETAL HEMOGLOBIN HAS _____
NO BETA CHAINS
44
FETAL HEMOGLOBIN HAS __ & __
ALPHA CHAINS AND GAMMA CHAINS
45
this means it cannot sickle
FETAL HEMOGLOBIN
46
body does not make enough normal hemoglobin
THALASSEMIA
47
2 TYPES OF ALPHA THALASSEMIA - hemoglobin bart hydrops fetalis syndrome
MORE SEVERE
48
2 TYPES OF ALPHA THALASSEMIA HbH disease
MILDER
49
THALASSEMIA - 1- 4 defective genes - affects both fetal and adult hemoglobin - in fetus, gamma4 Hb may form in adult, beta4 Hb may form
ALPHA
50
THALASSEMIA - >100 different mutations - affects only adult hemoglobin - Alpha4 Hb may form
BETA