Q: Which of the following equations correctly represents the conversion of prothrombin to thrombin during coagulation?

$$\text{Prothrombin} \xrightarrow{\text{Prothrombin Activator}} \text{Thrombin}$$

Q: Which of the following equations represents the conversion of fibrinogen to fibrin during blood clotting?

$$\text{Fibrinogen} \xrightarrow{\text{Thrombin}} \text{Fibrin}$$

Question 1

Which of the following is NOT a primary function of blood in the human body?

Accepted Answer

Production of hormones

Question 2

A patient has a hematocrit of 60%. Which of the following conditions is most likely present?

Accepted Answer

Polycythemia

Question 3

Which plasma protein is most responsible for maintaining plasma osmotic pressure and acts as a blood buffer?

Accepted Answer

Albumin

Question 4

A patient with chronic kidney disease develops anemia. Which of the following is the most likely cause?

Accepted Answer

Decreased erythropoietin production

Question 5

Which of the following best describes the structure of hemoglobin?

Accepted Answer

Four polypeptide chains, each with a heme group containing iron

Question 6

During erythropoiesis, which cell type is the immediate precursor to a mature erythrocyte and can be used to estimate the rate of RBC formation?

Accepted Answer

Reticulocyte

Question 7

A patient presents with fatigue, pallor, and shortness of breath. Laboratory tests reveal microcytic, hypochromic RBCs. Which type of anemia is most likely?

Accepted Answer

Iron-deficiency anemia

Question 8

Which of the following equations correctly represents the conversion of prothrombin to thrombin during coagulation?

Accepted Answer

$$	ext{Prothrombin} \xrightarrow{	ext{Prothrombin Activator}} 	ext{Thrombin}$$

Question 9

Which leukocyte is most abundant in normal blood and is known as a 'bacteria slayer'?

Accepted Answer

Neutrophil

Question 10

A patient with a history of deep vein thrombosis is prescribed warfarin. What is the primary mechanism of action of this drug?

Accepted Answer

Interferes with vitamin K-dependent clotting factor synthesis

Question 11

Which of the following best explains why sickle-cell anemia provides some protection against malaria?

Accepted Answer

Sickled cells are destroyed more rapidly, removing parasites from circulation

Question 12

Which of the following is the correct sequence of events in hemostasis?

Accepted Answer

Vascular spasm, platelet plug formation, coagulation

Question 13

A patient receives a transfusion of mismatched blood. Which of the following is the most immediate risk?

Accepted Answer

Agglutination and blockage of small blood vessels

Question 14

Which of the following statements about platelets is TRUE?

Accepted Answer

Platelets are fragments of megakaryocytes

Question 15

Which of the following equations represents the conversion of fibrinogen to fibrin during blood clotting?

Accepted Answer

$$	ext{Fibrinogen} \xrightarrow{	ext{Thrombin}} 	ext{Fibrin}$$

Question 16

A patient with hemophilia A is deficient in which clotting factor?

Accepted Answer

Factor VIII

Question 17

Which of the following best describes the role of the buffy coat in a centrifuged blood sample?

Accepted Answer

Contains white blood cells and platelets

Question 18

Which of the following is a correct statement about the ABO blood group system?

Accepted Answer

Type O blood has neither A nor B antigens on RBCs

Question 19

Which of the following is a function of albumin in blood plasma?

Accepted Answer

Acts as a carrier for certain molecules and helps maintain osmotic pressure

Question 20

A patient with a deficiency in vitamin K would most likely have problems with which physiological process?

Accepted Answer

Blood clotting

Blood: Structure, Function, and Clinical Relevance (Anatomy & Physiology Study Notes)

Guida di studio - Domande di pratica

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