what is the main pathophysiologic problem?
A. Bronchial hyperresponsiveness
B. Loss of alveolar surfactant and inflammation
C. Chronic mucus hypersecretion
D. Viral invasion of bronchial epithelium
Answer: B
Rationale: ARDS involves diffuse alveolar damage,
inflammation, and surfactant dysfunction causing
impaired gas exchange.
2. What is the initial pathophysiological event in
septic shock?
A. Loss of sympathetic tone
B. Decreased cardiac contractility
C. Systemic vasodilation due to inflammatory
mediators
D. Decreased blood volume
Answer: C
,Rationale: Inflammatory cytokines cause widespread
vasodilation, leading to hypotension and poor
perfusion.
3. Hyperparathyroidism causes which of the
following lab abnormalities?
A. Low calcium
B. High phosphate
C. Low PTH
D. Hypercalcemia
Answer: D
Rationale: PTH increases calcium levels by
stimulating bone resorption and kidney reabsorption.
4. What is the most likely complication of a deep
vein thrombosis (DVT)?
A. Stroke
B. Pulmonary embolism
C. Myocardial infarction
D. Chronic kidney disease
Answer: B
,Rationale: A thrombus can dislodge from the deep
veins and travel to the lungs, causing a PE.
5. A patient with cirrhosis develops ascites due to:
A. Hypercalcemia
B. Portal hypertension and hypoalbuminemia
C. Increased glomerular filtration
D. Decreased antidiuretic hormone
Answer: B
Rationale: Cirrhosis leads to portal hypertension and
decreased oncotic pressure from low albumin,
causing fluid to accumulate in the peritoneal cavity.
6. In hypothyroidism, which of the following is
typically elevated?
A. T3
B. T4
C. TSH
D. Calcitonin
Answer: C
, Rationale: In primary hypothyroidism, the pituitary
compensates for low thyroid hormones by increasing
TSH.
7. Which of the following is a feature of chronic
inflammation?
A. Neutrophil predominance
B. Immediate onset
C. Lymphocyte and macrophage infiltration
D. Short duration
Answer: C
Rationale: Chronic inflammation involves prolonged
tissue injury with mononuclear cell infiltration.
8. What is the hallmark of Hodgkin lymphoma?
A. Bence Jones proteins
B. Philadelphia chromosome
C. Reed-Sternberg cells
D. Myeloblast proliferation
Answer: C