$$\text{Hematocrit} = \frac{\text{Volume of RBCs}}{\text{Total Blood Volume}} \times 100$$

Question 1

Which of the following is NOT a function of blood?

Accepted Answer

Producing hormones for endocrine signaling

Question 2

A patient with iron-deficiency anemia is most likely to present with which of the following laboratory findings?

Accepted Answer

Low hemoglobin and microcytic RBCs

Question 3

Which of the following best explains why sickle cell anemia persists in populations with a history of malaria?

Accepted Answer

Sickle cell trait provides resistance to malaria by making RBCs less hospitable to the parasite

Question 4

Which of the following substances is NOT typically found in blood plasma?

Accepted Answer

Platelets

Question 5

A person with type B blood will have which antibodies present in their plasma?

Accepted Answer

Anti-A antibodies

Question 6

Which organ is responsible for secreting erythropoietin in response to low oxygen levels in the blood?

Accepted Answer

Kidney

Question 7

How many oxygen molecules can be carried by one hemoglobin molecule?

Accepted Answer

4

Question 8

Which of the following is a formed element of blood?

Accepted Answer

Platelets

Question 9

A patient presents with elevated neutrophil count. Which condition is most likely?

Accepted Answer

Bacterial infection

Question 10

Which of the following best describes the role of platelets in hemostasis?

Accepted Answer

Platelets form a temporary plug at the site of blood vessel injury

Question 11

Which anticoagulant drug is most appropriate for long-term prevention of blood clots in patients with atrial fibrillation?

Accepted Answer

Rivaroxaban

Question 12

A newborn develops hemolytic disease due to Rh incompatibility. Which scenario is most likely?

Accepted Answer

Mother is Rh-negative, baby is Rh-positive, and mother has been previously sensitized

Question 13

Which blood test is used to assess the overall chemistry of the blood, including electrolytes, liver and kidney function, and albumin?

Accepted Answer

CMP (Comprehensive Metabolic Panel)

Question 14

Which leukocyte is primarily responsible for killing parasites and is elevated during allergic reactions?

Accepted Answer

Eosinophil

Question 15

A patient with polycythemia will most likely have which of the following findings?

Accepted Answer

Increased RBC count and hematocrit

Question 16

Which of the following equations correctly represents the calculation of hematocrit?

Accepted Answer

$$	ext{Hematocrit} = \frac{	ext{Volume of RBCs}}{	ext{Total Blood Volume}} 	imes 100$$

Question 17

Which of the following is a synonym for 'hematopoiesis'?

Accepted Answer

Blood cell production

Question 18

Which of the following is a likely cause of pernicious anemia?

Accepted Answer

Vitamin B12 deficiency due to lack of intrinsic factor

Question 19

Which of the following best describes the function of albumin in blood plasma?

Accepted Answer

Albumin maintains osmotic pressure and regulates pH

Question 20

A patient with lymphocytic leukemia is most likely to have which of the following findings?

Accepted Answer

Elevated lymphocyte count due to cancer of the lymphocytes

Blood: Structure, Function, and Disorders – Study Notes for Anatomy & Physiology

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