In a TB skin test a sample of the TB bacillus (PPD) is injected beneath the epidermis of the skin. What does PPD stand for?

+4 votes

 

pulmonary protein derivative

purified protein derivative

protective protein derivative

pathological protein derivative

 

asked Dec 13, 2012 in Health Sciences by MedicalTerm ~Expert~ (3,354 points)
    

1 Answer

+1 vote
purified protein derivative
answered Dec 13, 2012 by MedicalTerm ~Expert~ (3,354 points)

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