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Chapter-17 Allergy and Rheumatology

BOOK TITLE: Partha’s Fundamentals of Pediatrics

Author
1. Singh Surjit
2. Gupta Anju
ISBN
9789350903612
DOI
10.5005/jp/books/11899_62
Edition
2/e
Publishing Year
2013
Pages
11
Author Affiliations
1. All India Institute of Medical Sciences, New Delhi, India, Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical, Education and Research (PGIMER), Chandigarh, India, Pediatric Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical, Education and Research, Chandigarh, Advanced Pediatrics Center, Postgraduate Institute of Medical, Education and Research, Chandigarh, India, Immunology Unit, Advanced Pediatrics Center, Postgraduate Institute of Medical, Education and Research, Chandigarh, India, Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute, of Medical Education and Research, Chandigarh, India, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh; Indian Council of Medical Research (ICMR) Centre for Advanced Research, Primary Immunodeficiency Diseases, Chandigarh, India, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research (PGIMER), Cha
2. Postgraduate Institute of Medical Education and Research, Chandigarh, India, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, Chacha Nehru Bal Chikitsalya, New Delhi, India, dranjugupta@rediffmail.com, All India Institute of Medical Sciences, New Delhi, India, Advanced Pediatrics Center, Postgraduate Institute of Medical, Education and Research, Chandigarh, India
Chapter keywords
rheumatology, erythrocyte sedimentation rate, C-reactive protein, differential blood counts, acute phase reactants

Abstract

This chapter discusses allergy and rheumatology. It is a common misconception that patients with rheumatological conditions need to undergo a battery of complicated and expensive investigations—most patients, in fact, need only a few simple tests to either confirm a given diagnosis or exclude other related conditions. As a rule of thumb, no laboratory test should be ordered unless one has a specific clinical condition in mind. In addition to the total and differential blood counts, the two commonly used tests in rheumatological diseases are: (1) the erythrocyte sedimentation rate (ESR) and (2) C-reactive protein (CRP) estimation. Both of these are acute phase reactants—the cutoff limits of the former are 20 mm/hour for males and 25 mm/hour for females.

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