Disorders of the Blood Overview Flashcards

1
Q

what are the functions of blood?

A
  • transport of nutrients
  • removal of waste
  • transport host defences
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2
Q

what must blood be able to do in order to function correctly?

A
  • ability to carry nutrients, waste and defences

- ability to self repair

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3
Q

what are the constituents of blood?

A
  • cell component
  • plasma proteins
  • lipids
  • nutrients
  • water
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4
Q

what are examples of plasma proteins?

A
  • albumin

- globulin

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5
Q

what does FBC stand for?

A
  • full blood count
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6
Q

what does RBC stand for?

A

red blood cell count

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7
Q

what does MCV stand for?

A

mean cell volume

- volume of the average red blood cell

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8
Q

what does HCT stand for?

A

haematocrit

- the ratio of cells to liquid in blood

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9
Q

what does WCC stand for?

A

white cell count

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10
Q

what does the abbreviation PLT stand for?

A

platelet

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11
Q

in terms of blood changes, what occurs in patients with anaemia?

A

low haemoglobin

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12
Q

in terms of blood changes, what occurs in patients with leukopenia?

A

low white cell count

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13
Q

in terns of blood changes, what occurs in patients with thrombocytopenia?

A

low platelets

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14
Q

a patient is suffering from pancytopenia, how is their blood affected?

A

reduction in all blood cells

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15
Q

what is polycythaemia?

A

raised haemoglobin

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16
Q

what is leukocytosis? when might this occur?

A

raised white cell count

- normal if body is fighting infection

17
Q

what is thrombocythaemia?

A

raised platelets

18
Q

what is an abnormality of haem metabolism known as?

A

porphyria

19
Q

what are the 2 main types of porphyria?

A
  • hepatic porphyria

- erythropoietic porphyria

20
Q

what are the clinical effects of porphyria?

A
  • photosensitive rash
  • neuropsychiatric disturbance (in acute attacks)
  • hypertension
  • tachycardia