Q: A blood sample is analyzed and found to contain approximately 55% plasma. Which formula correctly represents the calculation for plasma percentage if the total blood volume is $$V_{total}$$ and plasma volume is $$V_{plasma}$$?

$$\frac{V_{plasma}}{V_{total}} \times 100$$

Question 1

Which of the following best explains why type O negative blood is considered the universal donor?

Accepted Answer

It lacks A, B, and Rh antigens, reducing the risk of immune reactions in recipients.

Question 2

A patient with a severe allergic reaction is found to have elevated levels of which white blood cell type, and what is the primary chemical released?

Accepted Answer

Basophils; histamine

Question 3

Which organ is responsible for synthesizing and releasing more than 90% of all plasma proteins, including albumins and globulins?

Accepted Answer

Liver

Question 4

A blood sample is analyzed and found to contain approximately 55% plasma. Which formula correctly represents the calculation for plasma percentage if the total blood volume is $$V_{total}$$ and plasma volume is $$V_{plasma}$$?

Accepted Answer

$$\frac{V_{plasma}}{V_{total}} 	imes 100$$

Question 5

Which plasma protein plays a key role in the clotting process by converting to fibrin?

Accepted Answer

Fibrinogen

Question 6

A patient is diagnosed with a deficiency in B lymphocytes. Which of the following immune functions would be most directly impaired?

Accepted Answer

Production of antibodies targeting foreign antigens

Question 7

Which of the following statements about platelets is correct?

Accepted Answer

They are formed elements derived from megakaryocytes and are essential for clotting.

Question 8

A patient with reduced thymus activity after puberty is likely to experience which physiological change?

Accepted Answer

Decreased T cell production

Question 9

Which of the following best describes the function of iron ions in hemoglobin?

Accepted Answer

They bind oxygen for transport in red blood cells.

Question 10

A patient with a genetic disorder affecting antigen expression on red blood cells may have difficulty with which process?

Accepted Answer

Blood transfusion compatibility

Question 11

Which of the following is a correct statement about albumins in plasma?

Accepted Answer

They help maintain osmotic pressure and transport substances.

Question 12

A patient with a compromised hypothalamus may have difficulty with which physiological response?

Accepted Answer

Controlling hormone release from the adrenal medulla during stress

Question 13

Which of the following best describes the role of lymphocytes known as Natural Killer (NK) cells?

Accepted Answer

They destroy infected or cancerous cells without prior activation.

Question 14

Blood is classified as which type of tissue, and why?

Accepted Answer

Connective tissue; because it consists of cells suspended in a liquid extracellular matrix (plasma)

Question 15

A patient with a deficiency in fibrinogen would most likely experience which clinical symptom?

Accepted Answer

Impaired blood clotting

Question 16

Which gland is both exocrine and endocrine, and what are its main functions?

Accepted Answer

Pancreas; secretes digestive enzymes and regulates blood glucose via insulin and glucagon

Question 17

A patient with low albumin levels is likely to experience which physiological effect?

Accepted Answer

Decreased osmotic pressure in blood, leading to edema

Question 18

Which of the following best describes the function of antibodies in the immune system?

Accepted Answer

They are plasma proteins produced by B cells that defend against foreign antigens.

Question 19

A patient receives a blood transfusion and develops a reaction due to mismatched antigens. Which component of blood is primarily responsible for this reaction?

Accepted Answer

Antigens on red blood cells

Question 20

Which of the following correctly matches the cell type with its function?

Accepted Answer

Basophils — release histamine during allergic reactions

part 2 of quiz 3 for anatomy blood components

Guida di studio - Domande di pratica

Study guide - Flashcard