17.4-17.11 MAP Questions

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Which of the following is incorrect about hemoglobin?

It is a plasma protein

________ are immature erythrocytes that are present in the circulation.

Reticulocytes

How would removal of calcium ions from a blood sample affect coagulation?

The coagulation pathway would be lacking a required cofactor at many steps and coagulation would be prevented.

White blood cells that release histamine at the site of an injury are

basophils.

Within macrophages in the spleen, liver, and bone marrow, each heme unit is stripped of its iron and is first converted to which of the following organic compounds?

biliverdin

Which of these descriptions best matches the term lymphocytes?

defend against specific pathogens or toxins

The ________ is a procedure that is used to determine the number of each of the various types of white blood cells.

differential count

Tissue factor (Factor III) is a factor in the ________ pathway.

extrinsic

Each hemoglobin molecule contains

four iron atoms

What term is associated with elevated values of mean corpuscular hemoglobin concentrations (MCH)?

hyperchromic

RBCs typically live about 120 days. The main reason for this short lifespan in RBCs is their

lack of nucleus.

A cancer of the white blood cells is called

leukemia

If bile ducts are blocked,

more bilirubin appears in the plasma, and bilirubin appears in the skin and eyes.

The most numerous white blood cells in peripheral circulation are the

neutrophils.

The enzyme that can digest fibrin and dissolve a clot is

plasmin.

Sensitization during hemolytic disease of the newborn refers to

the mother's immune system producing antibodies against the fetus' RBCs.

People with type AB blood are considered the "universal recipient" for transfusions because

their blood lacks A or B antibodies

The conversion of fibrinogen to fibrin is catalyzed by

thrombin.

Which blood type contains RBCs with surface antigen B only and plasma that contains only anti-A antibodies?

type B

Choose the correct statement regarding hemolytic disease of the newborn (HDN).

Unlike anti-A and anti-B antibodies, anti-Rh antibodies are able to cross the placenta and enter the fetal bloodstream.


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