Chapter 44

Question 1

Patients with hemophilia, full mouth scaling is not recommended because it presents a high risk of heavy and prolonged bleeding

Answer 1

Both the statement and the reason are correct

Question 2

When bone marrow releases platelets into the bloodstream, the platelets travel throughout the body, transporting oxygen to the body’s organs and transporting carbon dioxide out. When an injury occurs, a chemical reaction is activated, which changes the surface of the platelet, making it sticky. This stick substance is known as fibrin.

Answer 2

Both statements are true

Question 3

Which of these blood thinning drugs is a vitamin K antagonist?

Answer 3

Warfarin

Question 4

Which of the following is not a cause of thrombocytopenia?

Answer 4

A decrease in spleen sequestration due to pregnancy or drug use

Question 5

What causes neurotoxicity?

Answer 5

It is a side effect of certain classes of drugs, such as the vinca alkaloids

Question 6

Which of the following is not a common oral complication of both chemotherapy and radiation

Answer 6

Neurotoxicity

Question 7

Identify the blood count that represents thrombocytopenia

Answer 7

Less than 150,000

Question 8

Identify the nutrient that when deficient can cause anemia associated with a bluish tint in the whites of the eyes

Answer 8

Iron deficiency

Question 9

Which of these test does not determine bleeding time?

Answer 9

Complete blood count

Question 10

Which level of the PTT signifies a severe bleeding problem?

Answer 10

Readings are longer than 50 seconds

Question 11

Anticoagulants differ from antiplatelet agents in that they

Answer 11

Do not inhibit platelet aggression

Question 12

What is the name of the white blood cell disorder in which there is uncontrolled growth of B lymphocytes that do not actually mature into plasma cells?

Answer 12

Hodgkin disease

Question 13

What is the one option to treat minor bleeds during dental treatments for patients with mild hemophilia?

Answer 13

Administer desmopressin acetate

Question 14

Changes of filiform papillae may result from a deficiency in which of these nutrients?

Answer 14

Iron deficiency

B12 deficiency

Question 15

What of the following is not an oral manifestation of leukemia?

Answer 15

Enlarged spleen

Question 16

What is the term for stiffness of a jaw that may result from higher doses of radiation and repeated radiation treatments of the head and neck?

Answer 16

Trismus

Question 17

What is the best description for polycythemia?

Answer 17

Too many red blood cells are being produced

Question 18

How does a person develop hemophilia A?

Answer 18

It is either inherited from the mother or a spontaneous mutation

Question 19

The body is extremely dependent on his clotting function because a person could bleed to death if the blood forms clots quickly.

Answer 19

The statement is correct, but the reason is not

Question 20

What is the most common inherited bleeding disorder?

Answer 20

Von Willebrand disease

Question 21

A complete blood count test can determine whether blood clotting is normal. The CBC assesses red blood cells, white blood cells, and platelets.

Answer 21

Both statements are true

Question 22

Which of the following blood disorders has a distinct characteristic blood cell shape that reflects a defect in its anatomy?

Answer 22

Sickle cell anemia

Question 23

What does an international normalized ratio above 4.0 indicate?

Answer 23

The blood is not clotting enough to prevent bruising or uncontrolled bleeding should the person be injured.

Question 24

What inherited bleeding disorder results from a missing or reduced proteins needed to form blood clots?

Answer 24

Hemophilia A

Question 25

Use of antibiotics should be evaluated when combined with which of the following drugs because of its affect on vitamin K production?

Answer 25

Warfarin

Question 26

In a patient with sickle cell anemia, the dental hygienist will notice excessive trabeculation and small, round spaces at the marrow loss on the patients radiographs. Lamina Dura often appears dance.

Answer 26

The first statement is false; the second is true

Question 27

What is responsible for the formation of blood platelets?

Answer 27

Bone marrow

Question 28

On reviews of the radiographs, the dental hygienist notices a loss of trabeculation and large, irregular shaped spaces of marrow loss. These signs are suggestive of which condition?

Answer 28

Sickle cell anemia

Question 29

—— Anemia is the inability of the red blood cell to absorb vitamin B 12

Answer 29

Pernicious

Question 30

An injury to the body activated stimulus that affects the production of what, which is a substance needed to formulate what?

Answer 30

Thromboxane, fibrin

Question 31

What is the name of the condition in which too many red blood cells are produced, resulting in overly rapid clotting time and purpleish or red areas of the tongue, cheeks, lips and gingiva?

Answer 31

Polycythemia

Question 32

Identify the drug that both inhibits long-term thrombus formation and causes short term vasodilation

Answer 32

Dipyridamole

Question 33

What is the appropriate INR for a patient taking anticoagulants?

Answer 33

2.0-3.0

Question 34

What is the purpose of the hematological system?

Answer 34

To transport nutrients to the organs in the body (through the arteries) and transport waste out (via the veins)

Question 35

Bone marrow is responsible for the formation of

Answer 35

Blood platelets

Question 36

Cancer of the white blood cells is called

Answer 36

Leukemia

Question 37

Your patient presents with an INR count of 4.0. Identify the appropriate course of treatment.

Answer 37

Do not provide treatment

Question 38

The lower the INR, the longer it takes blood clot. It takes the average person 1 to 6 minutes to clock

Answer 38

First statement is false, second statement is true

Question 39

Antibiotics affect the bacteria in the gut that produce vitamin

Answer 39

K