Homework 2 Dr Heyam Awad FRCPath 2016 Q

Homework 2 Dr Heyam Awad FRCPath 2016

Q 1 Categorize the following into exudate or transudate 1. Edema fluid containing numerous neutrophils. 2. Clear fluid within a blister caused by a minor burn during cooking. 3. Pleural effusion in a patient with congestive cardiac failure. 4. Edema in the middle finger caused by foreign body reaction to a tiny piece of broken glass. 5. Ascites in a patient with liver cirrhosis which has a specific gravity less than 1. 012 and no cell debris. 6. Ascites which contains mesothelial cells and occasional lymphocytes.

Q 2. • Which of the following events in acute inflammation occurs first? A. Chemotaxis B. Emigration C. Hemostasis D. Margination E. Phagocytosis

Q 3. Approximately 30 -60 minutes after being bitten by a "bug", a 26 -year-old man noticed a localized swelling and erythema in the affected area. The edema is most likely the result of: A. Altered plasma oncotic pressure B. Increased arterial hydrostatic pressure C. Increased vascular permeability D. Lymphatic obstruction E. Venous obstruction

Q 4. • A 20 year old medical student went to Petra during the September holiday. At the end of an exciting day he felt dizzy and developed erythema on his forehead which was also hot. Which of the following is the most likely cause of the erythema? A. vasoconstriction of the dermal vessels. B. Histamine release C. Nitric Oxide causing vasodilation. D. increased vascular permeability.