bloodquestions

Which of the following is true for an individual with type A blood?

The individual can donate blood to type AB.

Which of the following is true for an individual with anti-A antibodies in the plasma?

The individual is blood type B.

In which choice are the major groups of plasma proteins listed in order from highest to lowest percent?

albumins, globulins, fibrinogen

A person with a vitamin B12 or folic acid deficiency would probably also have

anemia

The benefit of the biconcave shape of red blood cells is that it

decreases the distance between the cell membrane and hemoglobin molecules, facilitating oxygen uptake and delivery.

Aplastic anemia is caused by

exposure to toxic chemicals or radiation.

Blood types are determined

genetically by glycoproteins and glycolipids on the RBC membrane.

In which choice is the plasma protein correctly matched with one of its functions?

globulins - transport minerals, lipids, hormones and vitamins

Based on lab results that show a person has a total white blood cell count of 7,000 WBC /µl blood, you would conclude that this person

has a normal white blood cell count

A person with type O+ blood would

have Rh but not A or B antigens on his RBCs.

The percentage of whole blood volume occupied by the red blood cells is the

hematocrit.

Damaged red blood cells are phagocytized by macrophages in the spleen or liver and their components are recycled, EXCEPT for the

heme group (minus the iron atom), which is converted into a green pigment called biliverdin.

If you have some blood from which the formed elements have been removed, how can you tell if it is plasma or serum?

plasma contains clotting proteins; serum does not

For a person whose hematocrit is 45%, in which choice below are the components of blood correctly ranked in order of decreasing percent of total volume?

plasma, red blood cells, white blood cells

leukocytes

protect against disease

Which problem could NOT be caused by a deficiency of plasma proteins?

reduced ability to transport oxygen

Which of these diseases involves a problem with the red blood cells?

sickle-cell anemia

Blood helps to maintain homeostasis by

transporting materials between the tissues and the external environment.

The buffy coat, a layer that appears when blood is centrifuged for determining the hematocrit, is made of

white blood cells and platelets

plasma proteins

maintain blood osmotic pressure; involved in clotting

A blood disorder characterized by the rupture of red blood cells on infection by protozoa is

malaria

The average blood volume for an adult is about

5 liters

normal blood count

5 million cells per mmc3

The hematocrit measures the packed red blood cell volume. For a person whose hematocrit is 45%, plasma volume would be

55% of total blood volume.

What percentage of body weight is blood?

8%

a reduction in oxygen-carrying capacity of the blood

Which describes anemia?

Hemophilia is caused by

a deficiency of any clotting factor

A dietary deficiency of iron could cause

a low red blood cell count.

In which situation does the person described first have a higher blood volume?

a person weighing 200 lb. or a person weighing 100 lb., if both have the same % body fat

Blood cells all develop from a common stem cell in bone marrow, but early in development they split into separate lineages. Which three of these cells develop from the myeloblast lineage?

basophil, eosinophil, neutrophil

Type O is considered to be universal donor

because it has neither antigen A nor antigen B on its RBCs.

As red blood cells get older, they

become more fragile

Which of these conditions would most likely cause an increase in the number of reticulocytes in the blood?

blood loss

What would you suspect to find if someone has high blood erythropoietin levels?

blood oxygen deficiency

In adults, red blood cells are made in one place, spend most of their lifespan in another, and most are finally destroyed in yet another place. Which choice lists these locations in chronological order?

bone marrow; blood vessels; spleen

Blood viscosity

is due to the presence of the plasma proteins and erythrocytes.

An abnormally high number of normal white blood cells is called

leukocytosis

Blood test results for an adult male are returned and the total red blood cell count is 2,500,000 cells per mm3. This person

low blood count