Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0010200 (cough)
 23,843 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

During October 1989 to March 1990 pediatricians and radiologists conducted a clinical study in Shunyi, Nanbu, and Shifang County Hospitals, China, of 160 healthy children and 541 children with fever and cough to examine the reliability of respiratory rate and various clinical signs in the diagnosis of radiologically confirmed pneumonia among 54 children under 5 years of age. The mean respiratory rate among children with cough and fever was 50 breaths/minute for infants aged 0-11 months and 40 breaths/minute for children aged 1-5 compared with about 40 breaths/minute and 30 breaths/minute, respectively, for healthy children . The researchers deemed these rates to be the cutoff criterion for rapid breathing. Rapid breathing could better predict pneumonia than rales could (positive predictive values, 74.5% vs. 66.9%). Nasal flaring, chest indrawing, and cyanosis of the tongue had high specificities (86.5%, 92.5%, and 93.5%, respectively). Yet these signs occurred in only a small percentage of the population (25.2% for nasal flaring and 10% for chest indrawing and cyanosis of the tongue). Based on these findings, the researchers call for village health workers to use rapid breathing to diagnose pneumonia rather than ausculatory signs, especially rales. Ausculatory signs are unreliable predictors of pneumonia.
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PMID:Respiratory rate and signs in roentgenographically confirmed pneumonia among children in China. 763 27