1. Which of the following is the primary mechanism responsible for
the development of edema in congestive heart failure (CHF)?
a) Decreased capillary permeability
b) Increased hydrostatic pressure in the capillaries
c) Decreased oncotic pressure in the blood vessels
d) Increased lymphatic drainage
Answer: b) Increased hydrostatic pressure in the capillaries
Rationale: In congestive heart failure (CHF), the heart's inability to
pump effectively causes blood to back up into the veins. This increased
venous pressure leads to increased hydrostatic pressure in the
capillaries, which forces fluid out of the blood vessels and into the
surrounding tissues, causing edema.
2. Which of the following best describes the pathophysiology of
asthma?
a) Smooth muscle relaxation and bronchial dilation
b) Inflammation and constriction of the bronchioles
c) Decreased mucus production and airway narrowing
d) Increased blood flow to the lungs
Answer: b) Inflammation and constriction of the bronchioles
Rationale: Asthma is characterized by inflammation of the airways,
leading to bronchoconstriction and increased mucus production. This
results in airflow obstruction and the typical symptoms of wheezing,
cough, and shortness of breath.
3. In diabetes mellitus, the primary defect in type 1 diabetes is:
, a) Insulin resistance in peripheral tissues
b) Insulin deficiency due to beta-cell destruction
c) Impaired insulin secretion by the liver
d) Increased insulin production by the pancreas
Answer: b) Insulin deficiency due to beta-cell destruction
Rationale: Type 1 diabetes is an autoimmune disorder in which the
body's immune system attacks and destroys insulin-producing beta cells
in the pancreas. This leads to a deficiency of insulin, resulting in
hyperglycemia.
4. Which of the following is the most common cause of a myocardial
infarction (MI)?
a) Atherosclerosis and rupture of an atherosclerotic plaque
b) Vasospasm of the coronary arteries
c) Embolism from a deep vein thrombosis
d) Pericarditis causing myocardial injury
Answer: a) Atherosclerosis and rupture of an atherosclerotic plaque
Rationale: Myocardial infarction (MI) is most commonly caused by the
rupture of an atherosclerotic plaque within a coronary artery, leading to
thrombosis and subsequent blockage of the artery, which results in
ischemia and tissue damage.
5. Which of the following is a hallmark of acute inflammation?
a) Necrosis of surrounding tissue
b) Vasodilation and increased vascular permeability
c) Reduced capillary blood flow
d) Increased levels of anticoagulants
the development of edema in congestive heart failure (CHF)?
a) Decreased capillary permeability
b) Increased hydrostatic pressure in the capillaries
c) Decreased oncotic pressure in the blood vessels
d) Increased lymphatic drainage
Answer: b) Increased hydrostatic pressure in the capillaries
Rationale: In congestive heart failure (CHF), the heart's inability to
pump effectively causes blood to back up into the veins. This increased
venous pressure leads to increased hydrostatic pressure in the
capillaries, which forces fluid out of the blood vessels and into the
surrounding tissues, causing edema.
2. Which of the following best describes the pathophysiology of
asthma?
a) Smooth muscle relaxation and bronchial dilation
b) Inflammation and constriction of the bronchioles
c) Decreased mucus production and airway narrowing
d) Increased blood flow to the lungs
Answer: b) Inflammation and constriction of the bronchioles
Rationale: Asthma is characterized by inflammation of the airways,
leading to bronchoconstriction and increased mucus production. This
results in airflow obstruction and the typical symptoms of wheezing,
cough, and shortness of breath.
3. In diabetes mellitus, the primary defect in type 1 diabetes is:
, a) Insulin resistance in peripheral tissues
b) Insulin deficiency due to beta-cell destruction
c) Impaired insulin secretion by the liver
d) Increased insulin production by the pancreas
Answer: b) Insulin deficiency due to beta-cell destruction
Rationale: Type 1 diabetes is an autoimmune disorder in which the
body's immune system attacks and destroys insulin-producing beta cells
in the pancreas. This leads to a deficiency of insulin, resulting in
hyperglycemia.
4. Which of the following is the most common cause of a myocardial
infarction (MI)?
a) Atherosclerosis and rupture of an atherosclerotic plaque
b) Vasospasm of the coronary arteries
c) Embolism from a deep vein thrombosis
d) Pericarditis causing myocardial injury
Answer: a) Atherosclerosis and rupture of an atherosclerotic plaque
Rationale: Myocardial infarction (MI) is most commonly caused by the
rupture of an atherosclerotic plaque within a coronary artery, leading to
thrombosis and subsequent blockage of the artery, which results in
ischemia and tissue damage.
5. Which of the following is a hallmark of acute inflammation?
a) Necrosis of surrounding tissue
b) Vasodilation and increased vascular permeability
c) Reduced capillary blood flow
d) Increased levels of anticoagulants
