Question 1

Which of the following is a primary function of endothelial cells in blood vessels?

Accepted Answer

Regulation of blood flow and vascular resistance

Question 2

Endothelial dysfunction is most likely to occur in response to which of the following environmental stimuli?

Accepted Answer

Products that cause inflammation, such as cytokines and bacteria

Question 3

Which molecule acts as a potent vasodilator in the local regulation of vascular smooth muscle cells (SMCs)?

Accepted Answer

Nitric oxide (NO)

Question 4

A patient experiences a sudden drop in blood pressure upon standing, leading to dizziness and possible fainting. What is the most likely diagnosis?

Accepted Answer

Orthostatic hypotension

Question 5

Which of the following lipoproteins is considered 'bad cholesterol' due to its role in plaque formation within arteries?

Accepted Answer

Low-density lipoprotein (LDL)

Question 6

Familial hypercholesterolemia is most commonly caused by which genetic defect?

Accepted Answer

Mutation in the gene coding for the LDL receptor

Question 7

Which of the following is NOT a risk factor for atherosclerosis?

Accepted Answer

Low serum cholesterol levels

Question 8

A patient presents with sudden, sharp, tearing chest pain and is found to have hemorrhage into the vessel wall with longitudinal tearing. What is the most likely diagnosis?

Accepted Answer

Aortic dissection

Question 9

Which of the following is a major complication of atherosclerosis?

Accepted Answer

Ischemic heart disease

Question 10

Which of the following is a clinical manifestation of acute arterial embolism, as described by the 'Seven P's'?

Accepted Answer

Paresthesia (numbness)

Question 11

Which of the following is a key feature of Raynaud phenomenon?

Accepted Answer

Episodes of intense vasoconstriction of small arteries in the fingers

Question 12

Which of the following is a recommended dietary change for patients with hypercholesterolemia?

Accepted Answer

Adopt a diet high in fruits, vegetables, whole grains, and lean proteins

Question 13

Which of the following is NOT a component of Virchow's Triad associated with venous thrombosis?

Accepted Answer

Decreased blood coagulability

Question 14

A patient with deep vein thrombosis (DVT) is at risk for which life-threatening complication?

Accepted Answer

Pulmonary embolism

Question 15

Which of the following is a common cause of secondary hypertension?

Accepted Answer

Renal disease

Question 16

Which equation best represents the relationship between blood pressure ($$BP$$), cardiac output ($$CO$$), and systemic vascular resistance ($$SVR$$)?

Accepted Answer

$$BP = CO 	imes SVR$$

Question 17

Which of the following is a clinical manifestation of chronic venous insufficiency?

Accepted Answer

Venous ulcers

Question 18

Which hormone is primarily responsible for increasing blood pressure in cases of primary hyperaldosteronism?

Accepted Answer

Aldosterone

Question 19

Which of the following is a recommended intervention for orthostatic hypotension?

Accepted Answer

Clenching fists and squeezing glutes before standing

Question 20

Which of the following best describes the pathogenesis of atherosclerosis?

Accepted Answer

Accumulation of intracellular lipids and proliferation of vascular smooth muscle cells

26 Patho

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