Physiox for (Exercise 11 Blood Analysis ONLY)

Hematocrit

Of 40 means that 40% of the volume of blood consists of RBCs.

A Buffy coat layer

Is all of the above

The diagnosis of anemia indicates

A lower than normal hematocrit

Polycythemia refers to

a significant increase in RBCs.

Anemia refers to

lower than normal hematocrit

To complete the blood test to measure hematocrit, you must seal the blood-

containing capillary tubes on one end with a clay material so that

the blood sample can be centrifuged without having the blood spray out of the tube.

Possible causes of polycythemia include

Living at high altitudes

You would expect anemia to develop in a person

who has abnormally shaped hemoglobin in their RBCs.

A protein found in red blood cells, __________, is necessary for the transport of oxygen from

the lungs to the cells of the body.

Hemoglobin (Hb)

Anemia results when

There is inadequate hemoglobin in the red blood cells, and insufficient oxygen is carried in the blood.

How much hemoglobin does normal adult human blood contain?

12-18 g/100 ml

To determine the amount of hemoglobin in a blood sample

All of these answers are correct.

Which of the following diseases is known to increase hemoglobin levels in an individual?

polycythemia

Which of the following is known to decrease hemoglobin levels in an individual?

cirrhosis of the liver

Red blood cell membranes have

agglutinogens that specify that individual's blood type.

ABO and Rh antigens

All of these answers are correct.

Which of the following statements about blood types is correct?

A person with type O blood has two recessive alleles and has neither the type A nor type B antigen.

Antibodies to the A and B antigens are

found preformed in the blood plasma.

To determine an individual's blood type, drops of the blood sample are mixed

separately with antiserum containing antibodies that recognize either type A antigens, type B antigens, or Rh antigens.

Agglutination

All of these answers are correct

Antigens

Are present on all cells

ABO and Rh agglutinogens

cause the most vigorous and potentially fatal transfusion reactions

Cholesterol is a lipid substance that

is all of the above

LDLs have been identified as

a potential source of damage to the interior of arteries

A desirable level of total cholesterol per deciliter of blood is

between 100 and 200 milligrams

Abnormal levels of total cholesterol per deciliter of blood could be caused by

liver disease

In this test for total blood cholesterol, elevated levels of total cholesterol

result in a darker-green color.

Why must any piece of equipment that comes in contact with human blood be

disposed of properly?

All of these answers are correct.

Abnormally low levels of total cholesterol (hypocholesterolemia) can suggest

All of these answers are correct.

Abnormally high levels of total cholesterol can be indicative of

poor diet and eating habits

The erythrocyte sedimentation rate (ESR)

is increased whenever fibrinogen and immunoglobulins cause the RBCs to clump together, stack up, and form a column.

The ESR cannot be used to follow the progression of which of the following diseases?

gingivitis

The ESR can be used to evaluate a patient with

All of the above

The erythrocyte sedimentation rate (ESR) measures

the settling of RBCs in a vertical, stationary tube of whole blood during one hour.

An increase in the ESR is

associated with worsening of anemia.

To properly measure the ESR, you need

A 1- hour timer