Exam 1 - 02/17

Which statement best describes red blood cells?

Red blood cells possess a protein known as hemoglobin.

Which cell develops into mature neutrophils?

band (stab) cell

Which of the following is NOT a characteristic of erythrocytes?

capable of protein synthesis

If a patient has a parasitic infection, you would expect an elevated __________ count.

eosinophil

Which leukocyte increases in number during parasitic infections?

eosinophil

During a tapeworm infection, you would expect to see increased numbers of:

eosinophils.

The hematocrit is the percentage of blood composed of:

erythrocytes

The percentage of blood composed of erythrocytes is called __________.

hematocrit

Lymphocytes and monocytes both arise from:

hematopoietic stem cells (HSCs).

What organ secretes most of the plasma proteins?

liver

Which type of leukocyte may produce antibodies?

lymphocyte

Platelets form from large cells called __________.

megakaryocytes

During leukopoiesis, neutrophils are derived from __________.

myeloblasts

All red blood cells in an adult originate in the:

red bone marrow

The enzyme that coverts fibrinogen to fibrin is __________.

thrombin

Where do T lymphocytes mature?

thymus gland

Which of the following is NOT one of the functions of blood?

to protect vital organs

The function of red blood cells is to:

transport oxygen and carbon dioxide.

The first step of hemostasis is __________.

vascular spasm

Type A blood contains __________.

A antigens and anti-B antibodies

https://session.masteringaandp.com/problemAsset/1976863/3/MAP_1976863_Intro.jpg Determine the blood type of this patient based on the blood- typing test results in the figure.

B

(T/F) When oxygen concentrations are low, hemoglobin releases oxygen to become carboxyhemoglobin.

False

Select the correct pathway to form a monocyte through the process of leukopoiesis.

HSC, myeloid stem cell, monoblast, promonocyte, monocyte

Which blood type is compatible with B- during a transfusion?

O-

Normal blood pH should fall between:

7.35 and 7.45.

Which of the following might trigger erythropoiesis?

Blood oxygen levels fall below normal.

what are characteristics of platelets?

-They contain granules with clotting factors and enzymes. -They do not have a nucleus. -They are cell fragments.

A centrifuged sample of blood shows 53% plasma, 1% buffy coat, and 46% erythrocytes. What percent of the blood is composed of leukocytes and platelets?

1%

Since erythrocytes lack a nucleus to make repairs, they only live:

100-120 days

Patient MK's blood typing chart showed coagulation the Anti-A, Anti-B and Anti-Rh sera. What is the patient's blood type?

AB+

Which of the following blood types is considered the universal recipient?

AB+

What antibodies are present in the plasma of a patient with O+ blood?

Anti-A, Anti-B

Which blood type carries anti-A antibodies in the plasma?

B-

Which of the following blood types would agglutinate if donated to a person with blood type A+?

B-

Which of the following statements about blood are TRUE?

Blood is more viscous than water. Blood helps maintain body temperature. Blood performs immune functions.

(T/F) The majority of blood is plasma.

True

(T/F) The most common cause of abnormal hemoglobin is an inherited condition known as sickle cell anemia.

True

(T/F) The most common leukocyte is the neutrophil while the least common leukocyte is the basophil

True

(T/F) Thrombin converts fibrinogen into fibrin, a mesh that glues together the platelet plug and helps seal the damaged vessel.

True

During a transfusion, if incompatible antigens are are introduced, antibodies can bind to foreign antigens, causing them to clump together, or:

agglutinate.

Which of the following is a plasma protein?

albumin

What protein is responsible for tagging foreign particles, pathogens, or blood for destruction?

antibodies

Nora was exposed to radiation that caused her red bone marrow to make fewer red blood cells. This condition is known as:

aplastic anemia.