1. what is counter current machenism? 
2. Drug of choice for placental separation in abortion? 
3. Amount of haemoglobin in each RBC? 
4. Type 1st hypersensitivity induced by which Ig_?
5. 3D sign of pellagra? 

The release of histamine, serotonin, and eosinophil chemotactic facotr is associated with :

A,) delayed-type hypersensitivites B.) Arthus-type Reactions C.) Complement mediated hypersensitivies D.) Immediate type Hypersensitivities E,) None if the above

Which of the follwing Immunoglobins are responsibile for initiating COMPLEMENT-MEDIATED allergic reations

A.) IgA B.)IgG C.)IgD D.)IgE E.) None of the above

Match the following. Answers may be used more than once. (1 pt each)

A. type I hypersensitivity B. type II hypersensitivity

C. type III hypersensitivity D. type IV hypersensitivity

_____ antibody-allergen complexes deposit in tissues and stimulate damaging inflammatory responses

_____ Mismatched blood transfusions are an example of this..

_____ Allergic contact dermatitis is an example of this

_____ You will treat this type of hypersensitivity with an anti-histamine

_____ Hay fever is an example of this

_____Transplant rejections is an example of this

discuss hypersensitivity