Raised respiratory rate in elderly patients: a valuable physical sign.Br Med J (Clin Res Ed) 1982; 284 doi: http://dx.doi.org/10.1136/bmj.284.6316.626 (Published 27 February 1982) Cite this as: Br Med J (Clin Res Ed) 1982;284:626
- J P McFadden,
- R C Price,
- H D Eastwood,
- R S Briggs
Measurements of respiratory rate in 82 long-stay patients aged 67-101 years yielded a normal range of 16-25 breaths a minute. In a prospective study of 60 consecutive acute admissions to a geriatric unit, 19 out of 21 patients diagnosed as lower respiratory tract infections had respiratory rates above the upper limit of normal on the day of diagnosis; the rise in respiratory rate preceded the clinical diagnosis. All eight patients who were diagnosed on admission as having a lower respiratory tract infection had a respiratory rate greater than 26, with a mean of 29.7 breaths a minute. Patients admitted for other conditions-for example, urinary tract infection-rarely had respiratory rates outside the normal range. Accurate measurement of respiratory rate is a valuable diagnostic aid in elderly patients.